How to design print in place foldable models like FAB365 - 3D design for 3D printing

I love print in place designs! In my opinion, those from FAB365 are the most captivating, so I wanted to challenge myself to produce a moveable tank design that not only printed in place, but folded and assembled just like FAB365 models. In this video, I take you through my design process and provide tips for designing in two different sets of positions. We also cover problem solving techniques that you can employ to avoid disaster.

My final design on Printables: https://www.printables.com/model/437973-print-in-place-tank-body-fab365-style

Note that I’ve purposely only included STEP files for my parts, as the tank base I’m adding to is a paid model and I wish to respect the work of the original author. I am not sharing the Onshape link, and have obscured the filename and URL.

If it seems like I’m going too fast on the CAD, it’s because each of these concepts has been covered in detail in an earlier video. The playlist is linked below. This video is about applying those concepts to a foldable print in place design.

0:00 Introduction
3D design for 3D printing Onshape playlist: https://www.youtube.com/playlist?list=PLGqRUdq5ULsONnjEEPeBxxStEsobDKAtV
FAB365: http://www.fab365.net/

0:47 Design situation
Satisfying torture tests video: https://youtu.be/m25NEKcUwuI
Print in place robot by EXTREME3DPRINT: https://cults3d.com/en/3d-model/gadget/pipbot-1-print-in-place-robot
Metal slug wiki: https://en.wikipedia.org/wiki/Metal_Slug
Metal Slug tank by Alexander Gargett: https://www.artstation.com/artwork/Jqd5v
Foldable Car - G by GOODesign: https://fab365.net/items/142

2:22 Importing source CAD and creating a part studio in context

4:32 Folding print in place design process
Onshape variables tutorial: https://youtu.be/UMpqWopwyO8

9:00 Test print and fixing mistakes

11:46 Adding details

13:12 Final print and assembly

14:03 Conclusion

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