Geeetech

I need to change the extruder hotend of my Prusa I3 Pro B with a GT2560 card. I couldn't found an alternative in Geeetech page, so I tried to buy one in Amazon for the Mk8 extruder: https://www.amazon.es/gp/product/B01MEC4EBT/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 The thermistor connector is no...

I'm trying to mount an acrylic Prusa I3 pro B. I've checked the PDF from the web, the Geeetech wiki and some videos from YouTube, but I have a problema. The acrylic piece A12 is suposed to have two holes for the threadeds rods, but my piece have four holes, two for the threadeds rods and two for the...