Unit 3: Grade 10 Technological Design - Robotics - Intro to CAD Drawing Tools

This unit will introduce you to some software drawing tools that can be used in technical design challenges. This will prepare you to work with more complex drawing programs and use these software drawing tools in the design process to support and accelerate virtual design problems.

Course Units and Descriptions

Use this table for an overview and navigate to each of the course unit pages.

Unit Description
Review course outline for more details
1 Careers & Safety- Intro, computers, organization, and careers
2 Technical Sketching- freehand sketching, ortho, dimensions, ISO views, custom ortho design
3 Basic 2D & 3D CAD Intro- 2D coordinates, lines, ortho views, 3D drawing, and custom design digitized
4 3D Parametric Design- 2D sketch, 3D parts, feature tools, drawings, exporting for 3D printing
5 Sheet metal Design- thin material design, folds, assemblies, 2D print, project design, testing, and build
6 Robot Assembly- part reproduction, part assemblies, custom function design and build
7 Web Portfolio- Showcase course work, projects, and understanding with web portfolio and presentation

Unit Content Activity Quick Links, Click to Jump to Specific Activity!


Index
    In-Context Part Design 1 - Gripper Arm
  1. Unit 3, Act. 1: Introduction to 2D Drawing - AutoCAD Web App
    1. AutoCAD Web Challenge, Intro, Resources, Tips, Creating ISO,
      (Create) AutoDesk Acc/Setup, Step Block, Custom Block, Evaluation
  2. Unit 3, Act. 2: Introduction to 3D Drawing - Google SketchUp
    1. Google Sketchup Intro, Resources, (Create) Sketchup for Step Block, Evaluation
  3. Unit 3, Act. 3: Shaping it on the Cloud - OnShape
    1. CAD History and OnShape, OnShape Intro, CAD Basics, Fundamentals, Dashboard
      (Create) OnShape Reg., Bracket/Gasket, Cylinder/Pitcher, Gripper/Vice, Propeller/Telescope, Headphone/QuadCopter,
      Evaluation



- TOP - Unit 3, Act. 1: Introduction to 2D Drawing - AutoCAD Webnext

AutoCAD Web

Situation:

Having now learned about sketching, orthographic and isometric drawings, it is easy for you to communicate effectively with pencil and paper throughout the technology design process. With the advancement of computers and software applications, it has helped people today get things done faster, more efficient, and more organized. It has also saved on the environment in many ways including a lot less paper used. Drawing programs have come a long way in the last 15 years and it is a great way to not only communicate, but also modify and update your ideas very easily.

- TOP - Problem/Challenge:

Using the recent orthographic sketch of the step block, redraw it in AutoCAD Web with supplied template. Draw using CAD tools using absolute and relative coordinate system, the three views with additional layers to draw hidden, centre, and dimension lines with suggested colours and weights. Spacing is to be 40 mm between object views. An ISO full scale view is required to draw, to later fit into third quadrant. Finalize by placing your model work in paper space, fill in information block using text tool and submit with a share link and PDF paper space for submitting with self/peer checklist evaluation PDF sheet combined.

Once you have some familiarization with AutoCAD Web, and feedback on your Step Block practice drawing, you are to draw your custom block with the correct front view based on the three rules, dimension with the right amount of dimensions, placement, and space required between views with similar line colouring and weights. Complete your model drawing with proper scaled ISO and then add to your paper space with your information block filled out for share and PDF to submit, including self/peer checklist evaluation PDF sheet combined.

Investigation/Ideas:

Investigation
- TOP - AutoCAD Web App Introduction

AutoCAD Web that runs in any web browser has the core power/language and a lot of the tool and functionality of the full desktop version. It has its own cloud storage along with support for some other common cloud services such as One Drive and Google Drive. With core AutoCAD commands available, there is a lot you can do with this web App. It can work with blocks, command line, and icon tools. With the flexibility of working from any web browser, allows you to use light weight computers and mobile access.

This type of program is commonly used in a variety of fields where layout drawing plans are needed to communicate a lot of information graphically. Drawings use the Cartesian coordinate system and there are two major ways to enter lines, either absolute or relative coordinates. Simply put absolute coordinate system uses point entry method based on a single starting point or origin, where the relative point entry method you enter coordinates based on your last coordinate location. With the coordinate system you can enter in such as Cartesian (2D / 3D), polar (2D), cylindrical (3D), spherical (3D) with Cartesian and polar most often used. Before starting to draw your step block, explore the program, experiment with different tools and familiarize yourself with the applications interface, as it is the staple CAD program used in industry. Below are several resource links you can checkout for further details about AutoCAD web.

- TOP - AutoCAD Web Support links
links

- TOP - AutoCAD Web Tips,Tricks, and Key Information
tips
  1. General settings go to gear icon, top right, to change preferences, tracking, object snap, units, and navigation settings
  2. Ctrl S to save your work often, so as to not lose any work if a problem occurs
  3. Command line to enter common CAD typed commands for quick access to tools such as line, grid, units, etc.
  4. Z for zoom, then letter for type of zoom such as E for extents, A for all objects, etc.
  5. Absolute coordinates allows you to enter location based on the origin point in relation to where you want to draw or locate a element
  6. Relative coordinate entry allows you to enter a location based on last location
  7. When drawing lines, having Ortho Snap on, you can save some time drawing lines that are straight horizontal or vertical by using the cursor to show direction, then just enter in the distance and press enter to draw that line
  8. The "From" CMD will allow you to offset your starting point location of a line or object
  9. Osnap (object snap) allows you to quickly lock onto common feature points of lines or shapes depending on which ones you have active
  10. Otrack (object snap tracking) will allow you to align an edge or e-snap point to another view or drawing location
  11. Use Layer Manager to create new layers to manage different parts of your drawing like object, text, dimensions, notes, special views, etc and control colour, view, line thickness, line type, layer, scale, locking etc.
  12. Layer or selection changes you may need to scale dimension lines, arrows, text, special lines, etc, doing so with a selected component will only change what is selected, or with no selection will change everything on that layer
  13. Draw tab icons: will give you access to drawing different shapes -rectangle, circle, polygon, and also arc, spline, xline, line, polyline, hatching, array, divide, and ellipses
  14. Annotate tab: gives you access to measure, revcloud, dimension, mtext, mleaders, and vports
  15. Modify tab: gives you access to move, stretch, mirror, round, chamfer, copy, trim, erase, rotate, scale, offset, join, matchprop, extend, explode, and breakpoint
  16. Using different object components it is recommended to create/organize them on separate layers, thus giving you more control on your drawing
  17. Adding new specialized lines, you may need to load them from the library to insert into layers
  18. Line weights in model space may not show up in the same scale as your paper space, so you may need to adjust your scaling in your model space so that it shows properly in paper space
- TOP - AutoCAD Web ISO Drawing View
  1. Adjust POLAR to 30° for making your isometric, this will create the angles you need to build your object in ISO
  2. For non-cylindrical objects use the line tool create your ISO on a new layer, start a line off the right side of your drawing views full 1:1 scale by moving the mouse in the direction you want catching those 30°POLAR angle snaps.
  3. For ISO circles, a regular circle will not work and there is no specific tool in AutoCAD Web, so we will create something close by use of the ellipse tool and some centre and grid references lines to draw an similar ISO circular hole on the ISO plane (see images below for visual of steps 4-6)
  4. Create reference ISO centre lines for your circle (continue using polar 30°), then use the copy tool to create parallel lines using your circle radius from centre out, to, form an ISO box, the diameter of your circle
  5. Using centre ellipse tool, select the centre, move your mouse in the direction of one of two furthest end ISO box intersections to a distance of your circle radius+20% or {(R*.2)+R}, turn off any OSNAP's, tracking, and POLAR, then adjust your elliptical to fit your ISO box, to create a very close to correct leaning ISO circle - note sample in picture below is for a 20 mm circlie with R=10, therefore use 12 or {(10*0.2)+10} for the initial ellipse radius
  6. Once finished your ISO, make a copy of your ISO, move to your object view layer, then use the Scale command (with appropriate scale ratio) to reduce your copy to fit appropriately in the third quadrant of your orthographic drawing, and hide/freeze your original ISO and reference line layer
2D Step Block sample

ISO Grid

2D Step Block sample

Ellipse

2D Step Block sample

Radius

2D Step Block sample

Adjust

2D Step Block sample

Difference


TipWith the current version of AutoCAD Web there may be a possible bug when you try to change the name of, or create/add another sheet on the bottom tab, that it pushes the whole body up, to the point you don't have access to the CAD workspace, command line, and tools.

Create/Construct:

Construction
- TOP - Creating an AutoDesk Account to Use the AutoCAD Web and Set-up
Create AutoDesk Account

To use this free AutoCAD Web App, you will first need to create an account with AutoDesk, the developers of AutoCAD Web.

  1. Go to the AutoCAD Web App sign-in page, and click on Create free account
  2. Fill in your first and last name, your school email, and a secure password
  3. Check agreement statement for terms of use and click on Create Account
  4. You will need to confirm your email address when you get an email from them to finalize your registration
  5. Congratulations, you should be ready to start using AutoCAD Web App by now signing-in
  6. You will want to connect your school Google Drive account, by using the Add storage provider box, and selecting the Google Drive icon and adding your school Google drive, once confirmed, AutoCAD Web will be able to save and open files in your Google Drive with seamless integration
  7. AutoCAD Web folder Setup
  8. In your Google Drive folder for this class, create sub-folders; tdj > cad > autocad-web, then create a sub-folders for each projects you will work on, so you keep your files and projects organized, just like you did with your local USB drive main save location, you created earlier in the course
  9. Get the following template files (template file and image logo), which has a completed paper space title block done for you with some global settings updated, and copy to a sub-folder; tdj > cad > autocad-web >templates, so you can reuse this for each of your projects
  10. Create another sub-folder; tdj > cad > autocad-web >step-block so you have a place to save your first 2D AutoCAD Web App project
  11. For marks, submit a JPG screen capture of your AutoCAD Web workspace, showing your Google drive opened up to; tdj > cad > autocad-web >templates, with the new template in clear view

TipYou should already be using Chrome, but just in case, support states that the AutoCAD Web App is supported also with Mozilla Firefox, and Microsoft Edge, you can check out the details here on AutoDesks' knowledge network..


- TOP - Creating Step Block in AutoCAD Web

Using the AutoCAD Web App, create an orthographic drawing of the step block with separate layers for reference, object, hidden, centre, dimension, ISO full, ISO scaled layers in model space and then printing the paper space output to PDF, using the steps below and your PDF 2D CAD Ortho Self-Peer Checklist.:

2D Step Block sample

Object Views

2D Step Block sample

Hidden lines

2D Step Block sample

Centre Lines

2D Step Block sample

Dimensions


  1. Create a new file from mf-acad-w_lan-a4-metric, select the template file you recently acquired
  2. Running AutoCAD Web for the first time you may want to change some of the settings such as in preferences, the dark or light theme as an example
  3. Type "z" for zoom, then "e" for extents, to show the whole model workspace
  4. Create an new layer and name it Object (for object lines), set it as white and make it a continuous line type, FYI - Layer 0 is usually reserved for making blocks (customized smaller CAD shapes to be re-used)
  5. Using your career PPT number = C, you will customize your Step Block dimensions length 50+C, Width 20+C, Height 20+C, and hole Diameter 10+C, so that everyone will be making the same object, but custom sizing
  6. Use the polyline tool and enter in the command box the Absolute coordinates "10,10" (x,y) as your starting point and then continue with the rest of the object line points to finish the view, for the last line you can just use the letter c (for close)
  7. Calculate 2nd view Absolute coordinate to start polyline, then try Relative polar coordinate entry by entering @ symbol, the length of travel then the < bracket with the angle you want to travel usually 0, 90, 180, 270 degrees, ex @30<0
  8. Continue to enter the rest of the coordinates to finish the ortho step block's 3 views, with 40 mm view spacing, experimenting with different entry methods also including dynamic entries
  9. Try the "From" command to locate and create a reference line for the centre of your circle hole feature, using the corners to start from, then experiment with the OSNAP tip Use the Paper Space sample below, to compare what to complete
  10. Using the layer commands, make a new layers for hidden lines, centre lines, dimensions, ISO original, and ISO scaled, with each of their properties for object line weights of 0.60, hidden line weights 0.50, dimension and centre lines at 0.30 weight
  11. In the properties ribbon, you will need to adjust the line types and set scales for each of your line sets, depending on your global settings as you want the entire layer will default to the Bylayer
  12. For isometric, set POLAR to 30° and turn on, so that you can use a dynamic Relative Polar Coordinate cursor direction and distance and draw your isometric outside your drawing limits of your orthographic drawing envelope area on a new layer, so that you can copy to a new layer and scale to fit in your drawing envelope area, then hide your original layer
  13. In sheet view (also known as paper space), you will have to adjust to fit in view port (double click in view port window to activate), then complete information block with name, date, material, and class
  14. In paper space you may want to turn off the grid, so it is not interfering with your view in the title block body, go through the checklist to ensure you have completed all work correctly, then "PLOT" (print) your paper space CAD file as a PDF to combine with your PDF 2D CAD Ortho Self-Peer Checklist sheet, CAD file as page 1 and eval sheet as page 2, to pass on to your peer evaluator
  15. Peer evaluator should prioritize to look at the combined 2 page (CAD ortho and eval sheets) ASAP and review partners work objectively, by putting their name down as the peer marker, highlighting key points that need work or have an issue in the categorized areas, could make additional comments in space below key points if necessary, placing a mark in the peer evaluation mark area for each category, then totaling up marks at the bottom. Save the combined PDF with a "-pm" at the end of the file name, and return to owner
  16. Owner to review peer evaluator's highlighting and marks, and at that point can make changes (time permitting) if they wish to potentially improve work to earn a better mark. If changes are made, owner is to re-evaluate themselves with a new self/peer eval sheet, send to a different peer evaluator for peer evaluation and feedback as outlined in the above steps.
  17. For submission of work, once the owner (you) is satisfied with your work and your peers feedback, submit both your combined completed PDF paper space CAD file and eval sheet and a viewable share link (created in AutoCAD Web), i.e. PDF and Shared link
2D Step Block sample

ISO Full Build

2D Step Block sample

ISO Reduced

2D Step Block sample

ISO Move

2D Step Block sample

Paper Space


TipEnsure the file extensions are correct and present. Here are examples of file naming conventions you should be using for CAD files:

  • AutoCAD Web proprietary file format DWG: td2-1_d-joe_2d-ortho-iso-step-block_60x30x30.dwg
  • PDF: td2-1_d-joe_2d-ortho-iso-step-block_60x30x30.pdf
- TOP - AutoCAD Web in Action Using the Custom Block Challenge
blocks

10 Block Challenges
Ortho-Practice

Now that you have a some awareness of AutoCAD Web, it's tools, and operation, lets put that new knowledge, skills, and experience to the test using our previous block challenge. Select a different block at similar level that you originally did for your sketch in Unit 2, and use the same steps you used to create your step block, to create your new model drawing for that block. You are encouraged to collaborate with a partner that has already done that block to discuss things such as the the correct front view of the object, features, dimensions, best ISO view, etc. to complete your new ortho/ISO block challenge with dimensions. You are expected to show all rough work such as calculations, sketches, layout ideas on the back of your PDF 2D CAD Ortho Self-Peer Checklist.

Considerations
Collaboration
  • Collaboration with partner to discuss which is the correct front view based on the three rules on selecting the front view
  • As this project is similar to the step block in terms of layers, you may use your step block file with the Save As command, and then delete your model object views, to re-use the layers
  • You will need to consider the number of dimension ladders needed between views (40 mm will work with three ladders or levels like in the step block... it will depend on the amount of details your object new object has) and you want about 10 mm spacing around the views and the boarder, i.e. use your paper space effectively
  • Reviewing dimensioning standards and more collaboration with your partner will help with placement of dimensions
  • Remember to create your ISO view last, once you know how much space you have with dimensions placed, then creating your ISO at full scale, copying it, and then reduce to an appropriate scale that will fit in the third quadrant of your model space drawing

- TOP - Evaluation:

Ensure that you have followed instructions and completed all steps taking in account the object layout, set-up, location, and final drawing output files. Ensure you have your CAD file and PDF 2D CAD Ortho Self-Peer Checklist completed and combined with proper file naming convention for submission.

Evaluation
Evaluation Breakdown Component Descriptions Marks
Always double check that you have completed all components for full marks.
ACAD Set-up - Account set, folders organization, and template file 10
ACAD Step Block - follow tutorial/example, model, DWG, and eval. sheet 25
ACAD Custom Block - Rough notes/calculations, model, DWG, and eval. sheet 40



- TOP - Unit 3, Act. 2: Introduction to 3D Drawing - Google SketchUp next

g-sketchup-sample

Situation:

Learning to draw and design with different technical drawing programs is a great way to communicate your ideas accurately and can easily be modified to future needs. As a technical design student this can be a very helpful tool with the design process.

Problem/Challenge:

challenge

You are to accurately draw the step block we sketched in class and in the previous application AutoCAD Web. Dimensions to be the same as your last project with respect to your career PPT number and to be added in a neat organized manner showing all overall dimensions and detail dimensions. Finished file to be handed in a PDF file format along with a share link.

Investigation/Ideas:

Investigation
- TOP - Google SketchUp Introduction

Google Sketchup is a free program and has a lot of support on the Internet including forums, part database, and tutorials. This program is closely used with Google Earth to build and show 3D buildings on it's maps. This program application has many setup configurations to allow different types of drawings and standards. The drawing tools represent simple tools and icons for drawing and push/pull shapes into 3D. This program can be used to draw simple or complex objects very easily. Review your dimension rules and standards and how to keep them to a minimum but also ensure you have enough to re-create it if needed.

- TOP - Resources

Extra help/resources can be found here if you need more information. Many more resources can be found online showing different methods to draw objects. This is a free program you can download here and installed on your system. Further resource links can be found here:

links

Create/Construct:

Construct
- TOP - Creating the Step Block using Google SketchUp

Here is a list of the major steps that were show during the class demonstration, and a final 3D drawing sample that you can follow if you need extra support:



2D Step Block sample

Sample 3D Step Block

  1. Select template: Product Design and Woodworking – Millimeters
  2. Draw a rectangle using the Rectangle tool, type the exact height, press enter
  3. Use the zoom extents icon to re-size, re-draw and center your object at any time
  4. Use the push/pull tool to pull up the object up, type the exact height, press enter
  5. Finish the rest of the block using the same tools/process
  6. Tip: use the tape measure to create infinite/construction lines to locate centre for hole
  7. Use the colour tool to create a transparent colour
  8. When finished drawing your 3D object, rotate/align the view so that it shows the most features, maximize the landscape space, and allow for adding appropriate dimensions
  9. Create/show dimensions by selecting the Annotation tab and select the appropriate dimension tools
  10. Show overall and detail dimensions outside of the ISO block envelope following similar techniques and rules with an ortho sketch
  11. Save in proper file format in two file types: SKP and JPG formats
  12. Use File > Export > 2D Graphics for creating the JPG (ensure image/dimensions are taking up most of the page
  13. Tip: ensure view is centred and full screen prior to exporting to JPG

When you are finished check with two peers to ensure you have completed the tutorial correctly. When handing in any files, you will submit the in the Drop-Off folder as discussed in class, in the proprietary program file format extension SKP and also export to a JPG format. Ensure the file extension is correct and present. Here are some examples of file name you should be using:

  • SKP - Google Sketchup file name example: td2-1_d-joe_2d-step-block_60x30x30.skp
  • JPG - Joint Photographic Experts Group file name example: td2-1_d-joe_2d-step-block_60x30x30.jpg

For your final challenge, you are to use your custom ortho block as a focus and draw it using the dimensions you already have from your sketch previously done using the same process in drawing the step block above. Remember to put your dimensions outside of the ISO box using the same techniques and rules of an ortho sketch. This time you will have to place them in the appropriate locations that makes them look neat, clean, and organized.

- TOP - Evaluation:

The chart below shows you your marks. Remember to save your work with the view you want to first viewed when opened to best show your work that maximizes the space and shows the most features and details of each of your objects.

Tape measure
Evaluation Breakdown Component Descriptions Marks
Always double check that you have completed all components for full marks.
3D Step Block - accurate dwg with proper located dimensions (2 files) 15
3D Custom Block - accurate dwg with proper located dimensions (2 files) 20
Total Activity Marks 35



- TOP - Unit 3, Act. 3: Shaping it on the Cloud - OnShape

Cloud-CAD

Situation:

Students are exploring different CAD related programs to get a feel for related tools used to design and draw.

Problem/Challenge:

challenge

Students will familiarize themselves with the history of CAD then go through a number of tutorials introducing the basics of 3D CAD using OnShape. The tutorial sections to complete are:

  1. Overview and Sketching
  2. Basic Features
  3. Part Design
  4. Assemblies
  5. Collaboration and PDM

Students will view the tutorial videos of each section, then follow the project step instructions to complete the 2 related tasks and later try the practice quiz's to test their knowledge and understanding of the work completed.

Investigation/Ideas:

Investigation
- TOP - CAD History and OnShape
CAD History Onshape 2015 Beta

Looking a little closer at the history of CAD can give you a better context of where CAD is today and its future. This will also give students a better understanding of OnShape in comparisons to traditional CAD programs that commonly run locally on your computer.

  1. Video History of CAD, 4.15
  2. OnShape - About Us
  3. Wiki OnShape General
  4. OnShape Help Documentation
  5. Prezi History of CAD, 92s
  6. PPT General Intro to CAD, 17s
  7. PPT What is CAD-CAM, 12s


- TOP - 1. Overview and General Resources

This section introduces you to 3D modeling, OnShapes' interface, design intent, sketching basics,dimensioning, and constraints. Getting Started video is a great start to start working with OnShape. After being introduced to OnShape, you will have complete some tutorial videos, and start on a related drawing project to model and draw, practicing methods, experience CAD tools, and learn some new techniques with sketches, dimensioning, and constraints. Here is a Video set of 10 introductory videos that go into detail with some of the basics of OnShape.

Once you have setup an account from the OnShape browser web App, you can use the Learning Centre button, top right to access a ton of resources. EDU Onshape subscriptions receive access to all of the self-paced content, technical briefings, and videos in the Learning Center for free. The learning pathways are great a great place to start, learning about OnShape, and the Dashboard keeps track of what you have reviewed. More about the Dashboard below.

tipFor your convenience, if you are already logged into your OnShape account, then the links below will allow you access to the courses below, so just remember to log-in first to OnShape, otherwise you will hit a firewall account block.

les1
- TOP - OnShape CAD Basics

Under the Learning Pathways, Select OnShape CAD Basics and get started with the following self-paced tutorials with the links taking you to the first the course tutorials in each of the areas below:

  1. Introduction to Parametric Feature-Based CAD
  2. Introduction to Part Design
  3. Introduction to 2D Drawings
  4. Introduction to Assembly Design



les1
- TOP - OnShape Fundamentals: CAD

Under the Learning Pathways, Select OnShape Fundamentals:CAD and get started with the following self-paced tutorials with the links taking you to the first the course tutorials in each of the areas below:

  1. Navigating OnShape
  2. Introduction to Sketching
  3. Detailed Drawings
  4. Part Design Using Part Studios
  5. Multi-Part Part Studios
  6. OnShape Assemblies


OS Dashboard
- TOP - Your Learning Dashboard

Your Training Dashboard keeps track of what you have accomplished so you can start, stop, continue with each of the online courses you have enrolled in. You may be asked to take a screen shot of completed course tutorials to show what you have completed. A sample screen shot of the Navigating OnShape is to the right, note before taking a screen shot, use the zoom to have your name and completed course shown.

If you wish to go further on your own, at your own pace and interests, OnShape has several other courses to further broaden your learning with OnShape.



Create/Construct:

Construction
- TOP - OnShape Registration
OnShape Log-on

Before you can start using OnShape, you will need to EDU register for a student account - Video video process.

New this year, we are testing out the Enterprise Edition of OnShape, so you should be logging into our important WTCS OnShape Domain with your registerd account . You should have recived an invite. Once you have registered update your profile by going into your profile settings,

  • upload a recent face image of yourself,
  • put your nickname as last initial, first name, s7 example D, Joe, S7,
  • fill in your general information,
  • default settings such as units length = mm, angle= Degree, and mass= Kg
  • leave mouse settings as default
  • link your Google Drive

Complete the tutorials that introduce the fundamentals of OnShape navigation, sketching, drawings, parts, and assemblies. Review CAD drawing tools, methods, and techniques in OnShape that you will find similar in other common CAD programs.

light bulb
Remember that you need to use Google Chrome (or Firefox Mozilla) to work with the OnShape CAD engine on the PC, so ensure that you set your default browser so that when you click on a web link from your computer that it goes to Google Chrome and not Explorer. If not set, you will need to copy the link manually into memory, and paste into Google Chrome browser. You may need to test and/or adjust some settings on your recommended browser.



les1
- TOP - 1. Overview and Sketching Projects

This section introduces you to 3D modeling, OnShapes' interface, design intent, sketching basics,dimensioning, and constraints. After you have reviewed the tutorial videos, you will be given two related drawing projects assignments to draw, follow methods, experience CAD tools, and learn some new techniques with sketches, dimensioning, and constraints. Ensure you have reviewed the related video's in the Investigation section above before starting drawing projects below.

Drawing Project Instructions

When you follow the PDF instruction sets, you will be given a link to a OnShape template which you will need to log-on to site first. Set-up your Google Chrome Browser and opened PDF instructions for quick application switching such that you can ALT+TAB between them or if your PDF instructions opens with-in a TAB in your browser, then use the ALT+CTRL to toggle between each. You will need to make a copy of the template (create a new file based on original and name new file name).

Remember to save the file with the proper file naming convention: course code two letters and level, course section, project name, your last initial, first name, and description format. Example: td2-1_d-joe_2d-step-block_60x30x30

Version Save

After final save, also do a version save!

Once finished the assignment, you will need to create a final version "FV1" using the manage version button, use the description area to add supporting notes, then save version, and share it with your instructor (use e-mail address from the bottom of this page) so your instructor can view with full edit access for evaluation. Ensure you include your evaluation self/peer checklist sheet with your submission.


TipMake sure you have all your sketches Fully Defined prior to extruding, by making sure no blue lines are showing in your sketch (should be all black). Red represents over defined which means there are too many constraints or dimensions and you will have to remove some. Use dimensioning techniques and keep 2D sketch dimension layouts neat and organized. If you find that your part is not filling up with a light grey once you have closed all shapes, then you will need to check your line connections. Also ensure that your version FV1 of your part is showing the best isometric view, fitting on screen.


Link Bracket Model
  1. PDF Basic Sketching - Link Bracket (Also in addition to instruction guide see below):
  1. Rename with proper file name convention, ex: td3-1_d-joe_ link-bracket_P_L-shape-4.5x1.75x0.12in
  2. Select and draw the correct front view (hint - not the one shown) and keep in mind that your 2D sketch dimensions are required to be organized and fully defined
  3. Change your tab title to the actual part name "Link Bracket",
  4. Rename your feature extrude and part name in the feature tree area "Link Bracket"
  5. Select your part in the feature tree and apply PLA material and pick an appearance colour
  6. Link Bracket Drawing
  7. Create a standard 3 view ortho with dimensions and ISO using tdj201_mr-f_OS_ANSI_templates file (make a copy for yourself) with template mf-ANSI_A_INCH.dwt set-up to maximize space, then add a drawing using the "+" Insert New Element near bottom tabs, and add drawing using the template you just copied
  8. Name bottom drawing tab: Link Bracket (note you will have to delete some random empty text fields around the info block area as a result of template update)
  9. Drawing info block: You need to fill in the properties section of the part or sheet being used. For Material: PLA, Finish: Normal, Weight: (find by selecting your part in your model view, click on small scale lower left corner, copy the weight and use note tool in the drawing tab to insert into info block), Title (input in model properties under Title one), Part & revision Number (input in DWG properties), Checker and date, etc. (use note tool) 6 mm (0.2362 inches) for title, 3 mm (0.1181 inches) to finish off info block
  10. Save your version titled FV1, put in the description section: the volume of the part, and five key things you learned in this project (bullets) using correct related terminology
  11. In the main menu, under Document Properties, put a quick one sentence overview of this project.
  12. Fill in the PDF OnShape Model/DWG Checklist sheet - self and peer (peers to mark only once) and attach to your drawing project as another tab by using the "+" Insert New Element near bottom tabs, share with your instructor with "Can Edit" your digital file (correctly named, ex: td2-1_d-joe_link-bracket_P_4.5x1.75) with instructors email address (found bottom of all web pages here) for evaluation and feedback.

Mouuld Gasket
  1. PDF Sketching In-Context - Mould Gasket Also in addition to instruction guide:
  1. Ensure the last step of the instructions, that the length change update is affecting the same direction as the gasket holes you just added,
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Assign a material to silicon rubber for the gasket,
  4. Edit part appearance colour to # b6c2cc (grey) by left clicking on your part in the feature tree panel area,
  5. Change your tab title to the actual part name "Mould Gasket",
  6. Rename your feature extrude and part name in the feature tree area "rubber gasket",
  7. Save a final version FV1, put in the description the Mass in kg, volume in mm3, and Surface area in mm2 of the part, and number/list five key things you learned in this project using the correct terminology
  8. Use the OnShape model checklist sheet to ensure you have completed the project correctly and remember to peer mark only once to ensure everyone gets that opportunity and not lose marks


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- TOP - 2. Basic Features

This section introduces you to several feature tools: extrude, revolve, sweep, fillet, chamfer, shell, and draft. Direct editing allows yo to modify, delete, replace for example using the Move Face tool for translating, rotating, or offsetting components of your object. Ensure you have reviewed the related video's in the Investigation section above before starting drawing projects below.

Drawing Project Instructions

Follow the instructions in the PDF's below to complete your drawing projects, remember log-on, proper file naming convention, and finish with final submission version fv1, and sharing for evaluation.

    Hydraulic Cylinder OnShape Model
  1. PDF Basic Features 1 - Cylinder Note step 3, ensure you select the whole triangular profile, minus the hole, to successfully "add" extrude to part. Also in addition to the instruction guide:
  1. Change your tab title to the actual part name "Hydraulic Cylinder",
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Rename your feature extrude names in the feature tree area as you add more features such as; cylinder, Base left triangle, Base right, Base right vert hole, and Base left vert hole,
  4. Assign a material to the part: aluminum 7075,
  5. Edit part appearance colour to # 5387C0 (Blue) by left clicking on your part in the feature tree panel area
    Tips
  • Left extrude, ensure you select hidden rectangle, right click, select other
  • You can save particular views, click on view icon, select Named Views, and save current view (hint if you need a particular view not normally able to select when bringing into drawings later)
  • Cylinder features added i.e. extrudes are all of the same part, so do not make new parts when adding features or you will not be able to apply the fillet tool later
    Hydraulic Cylinder OnShape Drawing
  1. Create a standard 3 view ortho (correct front view placed) with dimensions and ISO using template mf-ANSI_A_MM.dwt set-up to maximize space
  2. Name bottom drawing tab: Cylinder (note you will have to delete some random empty text fields around the info block area as a result of template update)
  3. Drawing info block: You need to fill in the properties section of the part or sheet being used. For Material: ALU 7075, Finish: Brushed, Weight: (find by selecting your part in your model view, click on small scale lower left corner, copy the weight and use note tool in the drawing tab to insert into info block), Title (input in model properties under Title one), Part & revision Number (input in deg properties), Checker and date, etc. (use note tool) 6 mm (0.2362 inches) for title, 3 mm (0.1181 inches) to finish off info block
  4. Save your version titled FV1, put in the description section: summary of the whole project, the volume of the part, and five key things you learned in this project (bullets) using correct related terminology
  5. Fill in the OnShape Model/DWG Checklist sheet - self and peer (peers to mark only once if possible) and hand in the same time you share "Can Edit" with instructors email address (found bottom of all web pages here) for evaluation and feedback.

    Water Pitcher OnShape Model
  1. PDF Basic Features 2 - Water Pitcher Also in addition to the instruction guide:
  1. Copy these instructions into the general description of this part,
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Change your tab title to the actual part name "Water Pitcher",
  4. Rename your feature extrude names in the feature tree area as you add more features such as; handle, hollow out pitcher, trim handles inside, pitcher top rounded,
  5. Assign a material to the part: glass, then edit part appearance colour to # 95c2e5 (Lt Blue) with a transparency of 0.25
  6. On your object view options, select ISO, turn perspective on, and select shaded with hidden edges
  7. Create a final version FV1, put in the description the total mass and volume of your water pitcher, and also include in the version description, the number/list of five key things you learned in this project using appropriate terminology
  8. Use the OnShape model checklist sheet to ensure you have completed the project correctly and remember to peer mark only once to ensure everyone gets that opportunity and not lose marks


les3
- TOP - 3. Part Design

This section introduces you to starting a design, showing a part design example, looking at a machine part design case study, a multi-part design, plastic design, consumer product case study and a medical device case study. Ensure you have reviewed the related video's in the Investigation section above before starting drawing projects below.

 
Drawing Project Instructions

Follow the instructions in the PDF's below to complete your drawing projects, remember log-on, proper file naming convention, and finish with final submission version fs1, and sharing for evaluation.

    Gripper Arm/pad OnShape Model
  1. PDF In-Context Part Design 1 - Gripper Arm Also in addition to the instruction guide:
  1. Change your tab title to the actual part name "Mechanical Gripper", rename your feature tree work with appropriate names,
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Name all of your features as you create them (only the ones you work on) including your part names
  4. Assign gripper arm appearance colour to # 1B5FAA (Blue) with a material Aluminum 6061 and gripper pad # DD5228 (red) with a material of Silicone Rubber,
  5. With completed gripper arm and pad on one side, use the given mid-plane in model assembly and the mirror tool, create/mirror the right gripper arm/pad components to end up with gripper arms on both sides,

    Gripper Arm OnShape Drawing
  1. Create a standard 3 view ortho (correct front view placed) with dimensions and ISO using template mf-ANSI_A_MM.dwt set-up to maximize space to show left gripper arm (not including pad)
  2. Name bottom drawing tab: Gripper Arm (note you will have to delete some random empty text fields around the info block area as a result of template update)
  3. Drawing info block: You need to fill in the properties section of the part or sheet being used. For Materials see above model, Finish: Normal, Total Weight of part: (find by selecting your part in your model view, click on the small scale lower left corner, copy the weight in Grams and use the note tool on the drawing tab/ribbon to insert it into info block), Title (input in model properties under Title one), Part & Revision Number (input in deg properties), Checker and date, etc. (use note tool again) 6 mm for title, 3 mm to finish off info block
  4. Save your version titled FV1, put in the description section: summary of the whole project, the volume of the part, and five key things you learned in this project (bullets) using correct related terminology
  5. Fill in the OnShape Model/DWG Checklist sheet - self and peer (peers to mark only once if possible) and hand in the same time you share "Can Edit" with instructors email address (found bottom of all web pages here) for evaluation and feedback.

    Vice Plate OnShape Model
  1. PDF In-Context Part Design 2 - Vice Plate Also in addition to the instruction guide:
  1. Change your tab title to the actual part name "Swivel bench vice", rename your feature tree work with appropriate names,
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Create a mid-plane between your two inside vice ends then mirror new grip edge, overlap, and the two mounting screws,
  4. Using instruction image or full size image above, modify all colour appearances to your swivel vice assembly,
  5. Show ISO best fit view with default shaded view selected,
  6. Create a final version FV1, put in the description the total volume of your vice moving block only. Also include in the version description, the number/list of five key things you learned in this project using appropriate terminology
  7. Use the OnShape model checklist sheet to ensure you have completed the project correctly and remember to peer mark only once to ensure everyone gets that opportunity and not lose marks


les4
- TOP - 4. Assemblies

This section introduces you to assemblies, sub assemblies, single documents, assembly mates, and an assembly design case study. Ensure you have reviewed the related video's in the Investigation section above before starting drawing projects below.

 
Drawing Project Instructions

Follow the instructions in the PDF's below to complete your drawing projects, remember log-on, proper file naming convention, and finish with final submission version fs1, and sharing for evaluation.

    Propeller Wind Belt OnShape Assembly
  1. PDF Assembling In-Context Parts - Propeller Wind Belt Also in addition to the instruction guide:
  1. Update your tab names to appropriate names and rename your feature tree work with appropriate names (mates not required),
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Assign belt appearance colour to # 000000 (Black) with a material "nylon",
  4. On your view object view options, select best ISO view with default shaded view,
  5. Create a final version FV1, put in the description the number of full turn revolutions the fan turns for the small pulley flag vertical to meet the angle and also the number/list of five key things you learned in this project using appropriate terminology
  6. Use the OnShape model checklist sheet to ensure you have completed the project correctly and remember to peer mark only once to ensure everyone gets that opportunity and not lose marks

    Telescope OnShape Assembly
  1. PDF Creating and Adding Sub-assemblies - Telescope Also in addition to the instruction guide:
  1. Ensure you do complete step 8, and also select slider mate limits for Rack and Lens Mount and insert values of -2 inches for minimum and 0.5 inches for maximum
  2. Create a description of the whole project (hint use PDF goals to summarize) for the whole project file using Main Menu (three thick horizontal bars)-Document Properties
  3. Leave each of your worked-on sub assemblies and main assembly with best ISO view similar to sample telescope picture sample above,
  4. Create a final version FV1, put in the description how many of each of the mates you used and also the number/list of five key things you learned in this project using appropriate terminology
  5. Use the OnShape model checklist sheet to ensure you have completed the project correctly and remember to peer mark only once to ensure everyone gets that opportunity and not lose marks


les5
- TOP - 5. Collaboration and PDM

This short section introduces you editing history, versioning, collaboration with simultaneous/branch editing, and working with existing CAD files. Ensure you have reviewed the related video's in the Investigation section above before starting drawing projects below.

 
Working with Existing CAD Files - Quadcopter Propellers

Quad-copter Propellers

Collaborative Editing - Headphone

Headphone

Drawing Project Instructions

Follow the instructions in the PDF's below to complete your drawing projects, remember log-on, proper file naming convention, and finish with final submission version fs1, and sharing for evaluation.

  1. PDF Collaborative Editing - Headphone
  2. PDF Working with Existing CAD Files - Quad-copter Propellers





- TOP - Evaluation:

Complete all parts of the tutorials and web instructions properly for full marks. Fill out the OnShape model checklist or the OnShape Model/DWG Checklist depending on the project the same time you share with your instructor, to ensure you have completed all general requirements of project.

Evaluation
Evaluation Breakdown Component Descriptions Marks
Always double check that you have completed all components for full marks.
1-1 Basic Sketching - Completed link bracket tutorial & DWG 30
1-2 Sketching in Context - Completed mould gasket tutorial 15
2-1 Basic Features 1 - Completed cylinder tutorial & DWG 40
2-2 Basic Features 2 - Completed water pitcher tutorial 10
3-1 In-Context Part Design 1 - Completed gripper arm tutorial & DWG 40
3-2 In-Context Part Design 2 - Completed vice plate tutorial 20
4-1 Assembling In-Context Parts - Completed propeller belt tutorial 20
4-2 Adding Sub-assemblies- Completed telescope tutorial 20
5-1 Collaborative Editing - Completed headphone tutorial 20
5-2 Working with Existing CAD Files - Completed quad-copter tutorial 20
Total Activity Marks 140