Replacement and Upgrade Parts for Prusa i3 A602

I ordered the Prusa i3 "A602" kit as found on AliExpress or Ebay. Most of the printed parts are included on the SD card. So it is easy to print replacement parts. Unfortunately, I broke the X-Endstop-Holder during the build which was made out of 2mm acrylic. So I have redrawn it in FreeCAD.

The mounting block for the Y-idler was printed in the wrong direction by the original manufacturer and cracks were building after a short time. I had to redraw this piece also because the STL was no includ