This is a test bench / jig or the Prusa MK3 (R2 and Bear) variants. I wanted to test a bunch of fans and cooling shrouds. Taking apart the printer every time became rather tedious. With the help of https://www.thingiverse.com/pekcitron/about, who graciously designed the jig for the Bear extruder, I created the R2 jig and base platform to mount both variants to.

Simply print out an extra extruder and you can hook up the hotend test bench into your existing Einsy. This prevents you from having to disassemble the wiring harness for running benchmarks, etc.

Feedback is always welcome and let me know of improvements!

Step files for R2 and base included.

I do this for fun and no support is required. However, people have requested a place to donate. if you want to donate use my PayPal or use an amazon affiliate link: https://amzn.to/3c3d5ou