sorted's Filametrix Mod

This is a mod of the Voron Stealthburner which adds a filament cutting possibility!

Motivation

I was looking at the ERCF MMU for several month now. What always kept me from starting the project were the discussions about issues and problems with filament tip forming. Suddenly a new company showed us how they do it quite reliable. They just cut the filament. Further motivated and inspired by the design of @pure100kim who has built the ERCF_Filament_Cutting_MOD I started to build my own version of it.

See how it works

Video...

Good to know

Please be aware:

!! THIS IS A WORK IN PROGRESS !!

• This is my very first repository on GitHub. Please be paitend with me :D - Any hints are welcome!
• We will need to use one of the ADXL mounting threads
• I designed it for main body without tool head sensor as I am planning to go with Happy Hare
• Based on the setup we will most probably not lose any build volume
• Currently the design is only available for the Dragon hotend
• As my ERCF is under construction I tested it with roughly 100 cuts by hand not seeing any wear or fatigue
• For the main body i remixed the ECAS version from Alexanderor

What you need

Print list

• 1x SB Dragon cutting Printhead back
• 1x SB Dragon cutting Printhead front
• 1x SB Main Buddy Cutting with ECAS
• 1x Cutting arm
• 1x Knife holder

Parts list - considering you already have a Stealthburner with Dragon Hotend

Toolhead:

• Loctite
• 1x M3 nut (DIN934; ideally a countersunk tool to modify the nut for proper filament insertion)
• 2x M3 washer (0.5mm)
• 1x M3x18 SHCS (it repleaces the top left M3x25 SHCS from the SB-Cover mount)
• 2x Voron heat inserts
• 1x M3x18 FHCS (counter sunk screw)
• 1x M3x8 SHCS
• 1x M2.5x16 SHCS (15-18mm works)
• Spring of ballpoint pen (L=15mm; D<=4,5mm) (I've ordered some for testing, to have a "defined" spring)
• Typ 4 Sharp Metall Skalpel (we will cut it to length) Link
• 

Cutting point on gantry

• tbd...
• ...

Assembly

tbd...