I wanted some platform pedals for an upcoming bike tour but only had clipless pedals. Spent a few days making these platform pedals using the clipless pedals for donor parts and a ton of PLA filament. I'm calling it a proof of concept because I eventually want to make a series of these pedals that rival the performance of commercially available pedals. Lots of further development is required for that.
To read the full project description check out my blog post.
I have uploaded two versions. The first version is the exact same stl files I used to print these. The second version are with a 2mm through hole instead of the profiled bearing surfaces. This should make it easier to cut out the center to match whatever spindle and bearing diameters you may need for your own project.
Video showing the process of making the first pedal.