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Session 6: CAD Assembly Practical

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Session 6

CAD Assembly Practical

Today, the Model Is the Test

You'll build a small shelf in OnShape, on your own, in this period. Your instructor grades the OnShape document: they'll open it, measure it, and click your mates.

The cover sheet shows your reasoning. A right number written on paper and a wrong one modeled in OnShape still loses the points.

You've Done All of This Once

  • A measured stock thickness, modeled exactly, never rounded
  • Panel sizes worked out from the outside dimensions
  • Every part named
  • Every joint held by a real Fastened mate

You've Done All of This Once

Session 5's box had all four. The shelf joins its panels differently, so the same question has a different answer for each panel.

Does this panel run the full size, or does it sit between two others? Answer that for every panel before you touch OnShape.

Sketch It on Paper First

Draw the shelf from the front and from the side. Mark which panels run the full width or height, and which fit between others.

Two minutes of sketch saves the most common way to lose points today: a panel cut to an outside dimension it was never meant to have.

Before You Submit

  • Measure the finished assembly in all three directions. Does it match the outside dimensions on your sheet?
  • Drag a panel. Does the whole shelf move with it?
  • Is anything still called Part 1?

Next Time

Session 7: Laser Cutting & Engraving

The Epilog cuts a sheet with light instead of a bit, and it has a sign-off of its own.

'F' → Fullscreen

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Build

Work alone. You may use your Session 5 document to remind yourself how something works.

Step 1: Read the Cover Sheet

Your instructor hands out the cover sheet. Read How it goes together twice, then sketch the shelf on scrap paper and label each panel full or between.

Step 2: Work Out the Sizes

Fill in the three derived dimensions on the cover sheet, with your arithmetic, before you model them.

Step 3: Build It

Create a new document named CAD Practical - your name, with its Part Studio and its Assembly. A t Variable is allowed, and it makes the sheet's last question easier.

Step 4: Check It, Then Submit

Run the three checks from the slides. Then answer the cover sheet's last question.

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Submit

Submit your OnShape document's link and the cover sheet.

Activity Complete