Free 3D Printer Parts STL Download - Skelestruder for Prusa MMU2s and reverse Bowdenby SMT_M 🦊

I moved parts specific for MMU2 and reverse Bowden support to here. See main source at [Skelestruder](https://www.thingiverse.com/thing:2845416). See also [Hairlock](https://www.thingiverse.com/thing:3255317) for MMU2. Pcover is for standard filament sensor. Needs one [brass heat set nut](https://www.amazon.com/gp/product/B077CG1W3L/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1). PM6cover is same but has threads for PC4-m6 coupler. PI-lid is for the indirect filament sensor. Needs one brass heat set nut. PIM6-lid is same but has threads for PC4-M6 coupler. Frame bracket is needed to help clear the wiring. I also tilted it up more which helps if you are using hanging spools. Recommend print PETG at 0.2 layer with 20% gyroid. --- I updated parts so they are rotated correctly for printing. Fixed scaling on idler. added a bit more thickness to arm. Here is a **beta** release of MMU2S IR sensor support. My first test of it printed a complete, unassisted, flawless multi-color print for the first time since I owned MMU2. So this looks promising. I wanted to test more but some folks were itching to try and I am on vacation and cannot test more right now. So be aware this is not final release quality. I made this as a mostly bolt-on for testing purposes and is quite hacky at this stage. I plan to revise and integrate more later. Why did I design it so? Back when Prusa announced it I decided I wanted it to require minimal changes and not remove other important functionality. For example, I still want quick access to gears by simple, tool-less open of idler door, which is hallmark of Skelestruder. This feature is even more valuable when MMU printing. I also wanted keep it compact but still amplify the mechanical swing to increase error tolerance and, hopefully, require no adjustments. So I went with dual pivot, but that requires bearings for reliability. However, I figured many have them already from indirect sensor solution. A plastic spring?! Yes, but here it’s flex is almost