I needed a handy platform pedal to clip on my Speedplay pedals. I wanted a small pair of platforms I could use for a short ride and then stove them into my pockets.
The whole design process went through several different models.
I have printed the prototypes with PLA but opted for PETG and ASA for the final pair. ASA needs a bit wider tolerance settings (or maybe you could print the default model at 105%). I added some grip tape for a secure pedal stroke.
Here's another model that works as well:
https://www.printables.com/model/278608-platform-for-speedplay-pedals
Have fun!
Update 20231217:
Added a prototype for power meter version (Speedplay_Platform_PM_52 v2)
The author marked this model as their own original creation.