I ordered all the parts and set stuff to print to test the tolerances and I ran into some pretty annoying issues. Here’s some of the issues I ran into:

• There was only 4 packs of 2 3x6 linear bearings in stock so I had to redesign the lead screw gear shifter to use 6x12 ones.
• 32x39 bearings are literally 12 bucks per and there’s only one singular vendor for it so I switched to 30x37 bearings which are way cheaper. In doing so I ran into really sketchy wall thicknesses.
• The slots for the 28mm dowel pins were way too close to the walls of the gear, so I had to change up some of the geometry so it doesn’t just print as a half circle.
• I spent a good amount of time tuning the tolerances so that the bearings would actually pressfit and not slide off easily. Same thing with the dowel pins.
• The biggest problem I ran into was that apparently you CAN rotate linear bearings around a shaft very smoothly. Every google search made it seems like I would break my wrist and explode trying to rotate a linear bearing, and it was pretty shocking to see it spinning smoother than a fidget spinner. This completely cooks my entire design and I still can’t figure out a good solution
• the second biggest problems was that, when switching from 32 to 30mm bearings, I forgot to change the dowel pin size so now they don’t fit in the bearings. I might just end up 3d printing pins if they’re too expensive/take too long to ship.
• a lot of the parts were really hard to 3d print so I split them into multiple to screw in.

Apparently the maximum devlog time limit is 10 hrs. I had 22 hrs logged because I wanted to have some aura post with 40 hrs where the entire thing was built, but I ended up losing 12 hrs instead.