Prusa Bear Full Upgrade - Parts for Multimaterial

thingiverse

I created this addons for awesome pekcitron's Prusa i3 Bear Upgrade v2.0 in case someone wants to add the multimaterial upgrade as well. It should work for MK2, MK2.5 and MK3 Full Bear upgrade. https://www.thingiverse.com/thing:2808408 Description: Switch electronic box: I used the original Prusa Superswitch box and changed its mounting points. Original box has only two mounting holes located on the axis of the box. I put mounting point (M3 hole) at each corner. Just put the mounting brackets on the back of Z-extrusion - above the box containing electronic. Mount them with low profile M5x10 screws (one for each bracket). Then mount the box with four M3x10 screws on the brackets. Do not forget to put M3 nuts in the brackets first. Adjust mounting height above the electronic box as needed. Switch PCB is supposed to be mounted with the upper pair of screws. The "box" (the black one) on the pictures is just a mockup. I did not want to print the whole box. Stopped the print early to save time and filament. Extruder motor mounts: I adjusted the original Prusa SCAD file so it can be used on Openbuilds V-slot extrusion. Hardware needed: 2pcs Low Profile M5x10 mm screws for motor holders - one for each holder (OpenBuilds) 2pcs Low Profile M5x10 mm screws for the Superswitch brackets (OpenBuilds) http://openbuildspartstore.com/low-profile-screws-m5-10-pack/ 4pcs M5 Tee nuts from OpenBuilds http://openbuildspartstore.com/tee-nuts-10-pack/ 4pcs M3x10 screws 4pcs M3 nuts I would like to thank Jo Průša for original SCAD files. Credit goes to him. I am also uploading design of the box lid, unchanged, just for the convenience. PS: It looks like this thing may not be needed after all in the near future. Prusa is developing brand new multimaterial system: http%://m.youtube.com/watch?v=J54OfY1__fU 2min 40 sec.