The Bear X-Ends and Bear Extruder are matched to each other and cannot be used separately. As a unit, they are completely compatible with stock Prusa MK2.5S, MK3S and Bear Full Upgrades

If you are upgrading an existing Original Prusa or clone, you need to first disassemble the x-axis and extruder. Save all the parts as some will be reused. Check the smooth rods for wear or damage. Now is a good time to replace worn rods and linear bearings, or re-lubricate if required.

To save time later, check all of the printed parts. Check that screw holes are clear, to allow the screws to slide in without excessive force. Once the electrical components have been added, you don’t want to be struggling with a tight screw which increases the risk of damaging a wire.

Disclaimer: We share these guides to make your experience as smooth as possible. However, you are responsible for your upgrade, assembly and damage you could cause to your hardware.