CAD design challenge ideas

I’m trying to get some other people on my team to learn CAD and I was looking for some super simple design challenges to keep them learning and to challenge them week to week

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Nut strips might be too simple but they’re pretty good for a super simple task.

Force them to make simple parts in as few sketches and features as possible. I’ve seen a 2.5D truss bridge side where each truss was its own extrusion with its own angled plane, instead of just a single sketch and extrusion.

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Frisbee (and then when they finish it, they should 3D print it and throw it around as a group)

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When my team first learned CAD this year, we made a really simple wheel, a hex shaft, and a spacer.
I also found a puzzle tutorial made by one of our mentors. It wasn’t for Onshape, but I made it in Onshape anyways.
Chess sets are fun too, and there’s plenty of room for creativity.

Pictures

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Better be disinfecting it after each throw. Also following along with RAMP tutorials can be very helpful. Gives you an idea of how to design rather than just CAD.

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When I learned CAD (Onshape), the first two basic things I was taught was a solid cube and a solid sphere. The sphere is surprisingly confusing the first time. having done CAD for 4 years now, I am still confused by the revolve function in Onshape because if you want 360 degrees of a sphere you put in 180??? I don’t know. If your team has some sort of convention for doing tabs or webbing or something, be sure they learn that in some way, shape, or form.

Sphere
Make a cube with the side equal to the diameter of the ball you want to make. Then fillet each edge with the radius of the sphere you want to make (1/2 of the edge of the cube). Done

If you are using the revolve times make a sphere, you do 360 degrees when revolving a semicircle or 180 degrees when revolving a full circle (each semi circle of the sketch will do half of the circle).

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Well I designed a challenge for my teamates while waiting for the CADathon.
Here is a brief rule summary: Rule Summary

This Game is played on a standard FRC field.
The main goal: Control as many Control Sections for as much time as possible.
The field is divided into 8 Control Sections, a Tube is placed at the middle of each Control Section. The Tube is divided into 2 sides, red and blue. A Control Section is considered Controlled once it’s filled with more Control Balls to the favor of one color than the other. Points are given for every 2 seconds the Control Section is under control of one alliance.

Hope you’ll find it interesting.

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I like the idea of a minibot.

Onshape seems to have some resources for educators. You might find these useful https://forum.onshape.com/categories/instructor-discussion

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