2021 06 06: I added a rev 2 folder for the Inventor file & STLs. The improved version better supports the cleat in the rear. I use Shimano SM-SH56 cleats. Since changing out my cleat wedges to these 3 degree versions (rev 1), it certainly feels a lot better pedaling, although the cleat sticks out a lot from the recessed bit in my shoe.

I changed out the bolts to M5 x 0.8 x 12 mm. The standard bolt length is 10 mm IIRC. You'll likely need the extra 2 mm to compensate for the added thickness. You can get these bolts cheaply everywhere. I tried 16 mm bolts & they were far too long; I could feel them poking my foot inside the shoe.

2021 03 28: I ported these models to Inventor. Now with a better printer, I achieved much higher resolution on the layer height. I'm leaving the Solidworks models here for posterity too, but the IPT is better defined in geometry.

I have a 1 & 3 degree version available, both as STLs.

I recently volunteered as a test subject for a practice bike fit. Although I benefitted from the cleat wedges they installed, they cost $20, which is far beyond their manufacturing cost.

So I made these.

1 degree incline, with a thin & thick edge.

There are STLs for a single one, plus a three-wedge assembly.

Never tested. I don't recommend installing these unless you know what you're doing or a qualified bike fitter suggests them. Responsibility is yours if you mess up your joints/body by misusing these.