Hi
I am using the 3D Chameleon with out a cutter but the Gcode Generator includes the scripts for a cutter.
My question is, will this affect my gcode and what do I need to change / delete to remove the cutter element?
My printer extruder does not retract all the filament during the colour change, preventing the next colour to load and I am wondering if this is the cause?
Thanks
Malcolm
Hi Bill
Thank you for the reply, just one more question. Where exactly should the code above be pasted in? I keep getting a 'Parsing error Expecting tag literal-char' When I try adding it.
Malcolm
In the Mode 3 gcode, there is a line that says "G0 E-30 F2000 ; <<<---- if mechanical cutter, change to a positive value of at least 5mm". All you need to do is increase the E-30 to a larger value to extract the filament all the way to back it out farther from the extruder. E-60, for example to back it out 60mm.
Also, you can optionally add a cooling and tip shaping bit. You can pull it directly from the Mode 2 gcode. Here's a block from it: G91 ; move to relative mode
M82
{if previous_extruder>-1}
; cool (and size) in 1.8mm tube
G0 E-20 F4000 ; quickly retract the filament to shape it
G0 E-10 F600; slowly allow it to cool
G0 E1 F2000 ; blob elimination
; back to tip size
G0 E-20 F4000 ; quickly retract the filament to shape it
G0 E-10 F600; slowly allow it to cool
G0 E1 F4000 ; blob elimination
G0 E-10 F4000 ; quickly retract the filament to shape it
G0 E1 F4000 ; quickly ram the filament to shape it
G0 E-10 F4000 ; quickly retract the filament to shape it
G0 E1 F4000 ; quickly ram the filament to shape it
; back to 1.8 constriction
G0 E-50 F4000 ; quickly retract the filament to shape it
G0 E-80 F100; slowly allow it to cool
; turn the fan off
M107 ; this printer has the fan in the way, so turn it off
; retract it back out of the extruder
G92 E0
G0 E-100 F2000
G92 E0
G0 E-100 F2000
G92 E0
G0 E-30 F2000
G92 E0
The top portion does the tip shaping... the bottom G92 and G0 commands does the backing out... in this case, for 230mm. If you have a direct drive, it'll be a lot less, but this one is for a Bowden system.
Bill