Qidi Xmax 3 toolhead rework

This is complete rework of tool head to ensure printer is fully capable to operate safely at its max chamber temperatures as well as able to have multi material support (cutter+tool head sensor). I have tested cutter and it works on everything except TPU. 30mm hotend fan and 40x10 tool board fan. use m3 heat inserts.

Its beta tester unit , specifically designed to work with max 3 that has induction probe as you will need to do wiring adjustment to accommodate toolhead  filament sensor , follow guide from people who are smarter than me . 

https://www.printables.com/model/1372860-qidi-xmax3-filament-runout-and-post-extruder-cutte

Tool head using 2, 5mm metal balls and standard end-switch.

For chop arm I am using 3mm OD spring , 8mm long . use original QIDI blade and tiny screw it comes with .

Part fan do be aware that blower fan and fang will need to be inserted simultaneously due to that little vedge incorporated into design .

Red highlights for M3 heat inserts locations 

HERE is a Sample of AFC cut MACRO:

[gcode_macro AFCCUT_TIP_VARS]

description: Toolhead tip cutting macro configuration variables

gcode: # Leave empty

# This should be the position of the toolhead where the cutter arm just

# lightly touches the depressor pin

variable_pin_loc_xy : 324, 4 # x,y coordinates of depressor pin

# Accel during cut. This will overwrite the global accel for this macro. Set to 0 to use global accel

variable_cut_accel : 0

# Direction to make the cut move (left, right, front, back)

variable_cut_direction : "front"

# This distance is used to move toolhead to cut filament

# and to create a small safety distance that aids in generating momentum

variable_pin_park_dist : 6.0 # Distance in mm

# Position of the toolhead when the cutter is fully compressed.

# Distance the toolhead needs to travel to compress the cutter arm.

# To calculate this distance start at the pin_loc_xy position and move

# your toolhead till the cutter arm is completely compressed. Take 0.5mm off this distance

# as a buffer.

# Ex pin_loc_x : 9, 310 fully compressed at 0, 310 set cut_move_dist to 8.5

variable_cut_move_dist : 7.6 # Distance in mm

# Speed related settings for tip cutting

# Note that if the cut speed is too fast, the steppers can lose steps.

# Therefore, for a cut:

# - We first make a fast move to accumulate some momentum and get the cut

# blade to the initial contact with the filament

# - We then make a slow move for the actual cut to happen

DO BE AWARE THAT I TRIMMED INNER LIP on top,door side so toolhead can come in more on negative Y , no other modifications for cutting macro needed.

I printed my set in PPS-GF20 with 99% infill and strongly recommend material of similar strength