PRUSA MINI BEAR - TUTORIAL

PRUSA MINI BEAR ________________________________ I am French, my English is very average, I did better, I apologize in advance for any translation errors.A French version of this tutorial exists here / Version française ici: HERE   What's this ? This involves taking an original Prusa Mini (or a clone), keeping the main components of the machine and offering an alternative based on aluminum profiles, in order to increase performance, functionality and stability. and print quality.   Why ? At first, for fun!Building a machine from almost zero is great, it's exhilarating to come to the end of your project and say to yourself "Yes, I made it!" In the end, we don't have a Prusa Mini, but rather a Prusa MK3S Mini I would say!   Why this tutorial? More and more people are embarking on the Prusa Mini Bear project, there are already a lot of publications, but it is difficult to navigate because there are very wide customization choices, and often we need help for this or that subject, I tried to bring together the questions and problems that I encountered in order to help the next ones.   Here is what it gives in the end (note, on the photo of the Prusa mini on the left, I had mounted a base that is not original, available HERE.)       MATERIAL PART ____________________________   First of all, you will need to buy some essential products to convert your Prusa mini to the Mini Bear, here is what you will need: • 1x Prusa Mini (Original or clone) • 1x E3DV6 Hot End (you can also use the original one) • 1x prusa MINI z stepper motors (type TR8*4 310mm) • 1x Dual Drive Extruder Kit • 1x linear bearing LMU8 LMU8 (Misumi brand of preference) • 100x T-nuts (M4 ou M5) • 100x Hexagonal head screw (generally black, I used M5 stainless steel) • 2m Belt GT2 6mm • Aluminum extrusion profiles (2040 v-slot) • 1x PETG filament to print the parts (2 filament spool if 2 colors) • 1x Piece of PTFE to 44.3 mm for the Hot End • 1x Filament sensor kit   Let's detail all this: • For the extruder,