Prusa Bear MK3S MINI Ultra-Upgraded V1.0

Introduction

The MK3S Bear for MINI Upgrade replaces the original Prusa MINI frame with a more rigid and reliable solution also it replaces the bowden to direct drive and dual Z-Axis. It allows faster prints, increases precision, makes maintenance easier and opens the door to more customization.

For the pictures go here please : https://www.prusaprinters.org/prints/37939-prusa-bear-mk3s-mini-ultra-upgraded

Here are the features that explain why we decided to create another printer upgrade.

Use as much as possible original parts (the MINI firmware stays intact)
Compatible with Prusa MINI

Highly detailed manual
Use more aluminum and less printed parts (3D printed parts can crack and are less reliable)

Other type of aluminum extrusions can be supported thanks to parametric design (check Fusion 360 files)
3D printed parts designed using advanced techniques like selective infill, clean vertical holes, sharp angle...
Open source by providing STL, STEP and Autodesk Fusion 360 files

The original parts from Prusa and Bear designers that you have to use them as they are, are the following: 1: x_end_idler_tensioner.stl -> https://github.com/gregsaun/bear_extruder_and_x_axis/blob/master/printed_parts/stl/common_to_all_versions/x_end_idler_tensioner.stl

2: z_motor_mount_front.stl -> https://github.com/gregsaun/prusa_i3_bear_upgrade/blob/master/full_upgrade/for_mk3/printed_parts/stl/z_motor_mount_front.stl

3: y-belt-holder.stl , y-belt-tensioner.stl -> https://github.com/prusa3d/Original-Prusa-i3/tree/MK3S/Printed-Parts/STL

4: MINI-display-box.stl , MINI-knob.stl -> https://github.com/prusa3d/Original-Prusa-MINI/tree/master/STL

Thank you Grégoire Saunier and Josef Prusa

Thank you for making the community alive with all your comments, issues, pull requests, optional parts, make, pictures, etc. Sources

Here are a list of sources I used to build this project :
Prusa : http://www.prusa3d.com Grégoire Saunier : https://github.com/gregsaun/prusa_i3_bear_upgrade Prusa 3030 Haribo Edition : https://github.com/PrusaMK2Users/3030_Haribo_Edition Openbuilds : https://www.openbuilds.org Prusa i3 Solidworks parts from jzkmath : https://github.com/jzkmath/Original-Prusa-i3/

Huge thanks to these projects, without them this project can not exist!