Topics created by dmtulsa

@dmtulsa You don't say exactly what you doing that won't control the hot end. Is it the controls in DWC? Make sure you are running the same version of DWC as RepRapFirmware, ie DWC v3.4.5. It could be that you are running an old version, where heater control is different.

Your thermistor settings (M308) are using the default thermistor. This is unlikely to be correct. Do you know what thermistors you are using?

It may be better to tune your extruder heater as a tool, rather than the heater itself. Rather than using M303 H1 ... , use M303 T0 ... to tune the tool. See https://docs.duet3d.com/en/How_to_guides/Commissioning#h-7-tune-heaters

If that doesn't help, power off then power on the board, then send M98 P"config.g" to check there are no errors in your config. Send M307 H1 to check that the correct PID values are being used. Post any output if it is not what is expected. Post your full config.g, as you may have errors in the tool configuration that is stopping the heater working.

Ian

@rschlachter said in Load / unload Filament:

I know it's been a while, but if you didn't mind sharing your load and unload macros, that'd be great. The filament management, in my opinion, is a weak point of the interface.

No problem. Glad to help you out.
These particular ones are for my Ender 3 pro so the feed lengths relate to the Bowden tube length.

Load_ABS.g
; Feed 350mm of filament, extrude 50mm then clean nozzle

M83 ; relative extrude
T0 ; activate extruder
G28

G1 Z150 F1000 ; Move nozzle to front and lower bed for clearance

M109 S200 ; Heat nozzle to 190 and wait

M291 P"Feeding filament..." S0 T2 ; Display new message
G1 E360 F2000 ; feed 360mm of filament
M400 ; wait for current moves to finish

M291 P"Extruding the last 80mm of filament..." S0 T2 ; Display new message
G1 E80 F200 ; extrude slowly 80mm of filament

M291 P"Remove waste from Nozzle..." R"Cleaning" S2 ; Display new message

G10 S0 ; Turn off the heater
M291 P"Finished" S0 T2 ; Display new message
; Play a tune
;M98 P/macros/Music/Vader.g

Unload_PLA.g
; Unload filament macro

M83 ; relative extrude
T0 ; activate extruder
G28

G1 Z150 F500 ; Raise Z for clearance
M109 S190 ; Heat nozzle to 190 and wait

M291 P"Unloading filament..." S0 T2 ; Display new message
G1 H1 E-60 F300 ; unload first 60mm of filament
M400 ; wait for current moves to finish
G1 H1 E-365 F1000 ; unload remaining 365mm of filament
G10 S0 ; Turn off the heater

M291 P"Finished" S0 T2 ; Display new message

...and finally
Colour_Change.g
; Macro to semi automate filament colour change

M83 ; relative extrude
G1 Z110 ; Lift Z for clearance

M291 P"Unloading filament" R"Colour Change" S0 T3 ; Display new message

G1 H1 E-60 F300 ; unload first 60mm of filament
M400 ; wait for current moves to finish
G1 H1 E-365 F2000 ; unload remaining 365mm of filament

M291 P"Remove old filament and insert new" R"Colour Change" S2 ; Wait for Acknowledge

M291 P"Feeding new filament..." S0 T3 ; Display new message

G1 E365 F2000 ; feed 365mm of filament
M400 ; wait for current moves to finish
G1 E130 F300 ; extrude slowly 130mm of filament

M291 P"Remove waste from Nozzle..." R"Colour Change" S2 ; Wait for Acknowledge

M291 P"Back to print!" R"Colour Change" S0 T3 ; Display new message
M24 ; Resume print
; Play a tune
;M98 P/macros/Music/

Hope these are of use.

Okay thank you all very much, that did it.
Doug

Can you share some gcode of something that prints really small? Then we can at least see what the gcode is doing. Alternatively you can import gcode into Cura and check it looks sensible.

Ian