The Bear frame is compatible with the Prusa stock extruder and X axis as well as the Bear extruders (BearExxa, BearMera and Bear X axis with Bondtech extruder).

If you are upgrading an existing Original Prusa save all the screws and nuts as some will be reused.

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.

Some steps are showing the Original MK3(S) frame but they are applicable to MK2(S)/MK2.5(S) frame as well.

Disclaimer: We share these guides to make your experience as smooth as possible. However, you are responsible for your upgrade, assembly and any damage you cause to your hardware. Therefore we cannot be taken as responsible in case of damage due to the steps presented in our guides.