I have heard that digital Calipers are a must. If I want to make some cute little robot projects on the side for my portfolio, or things like a laser gun game that I can play on my tv screen, what are some tools and materials I definitely need to get? (already have a bambu p1s fdm printer)

Hi everyone! I have an upcoming live design challenge interview for an Apple Product Design Engineer role on the Data Center team. The recruiter mentioned that someone from the Mac PD team will conduct the interview.

For anyone who has gone through this round, what kind of design problems should I expect, and what would you recommend practicing beforehand?

Any advice or insights would be greatly appreciated. Thanks!