No heater printing
I made a clay extruder for my printer.
How can I make reprap firmware print without any heater or temperature sensors?
Does it have a fake heater that I can make always return 200c or something to make the firmware extrude with a cold extruder, or even without temp sensors?
Whitewolf last edited by
Take a look at the gcode wiki you will find commands for cold extrusion
lars last edited by
M302: Allow cold extrudes
ThenI still have to install thermistors, just to give it some kind of temperature reading, but the printer does not have any real need for a temp reading.
I will install one for now, and suggest that a fake temperature sensor is added to the firmware.
Dougal1957 last edited by
instead on installing thermistors you could use a 100K resistor in there place
If you define your tool as having no heaters in the M563 command, I don't think you should need to use any temperature sensors. Have you tried that?
Yes, I tried that. I dont remember what went wrong, but I could not get that to work too.
I have installed a thermistor and added M302 P1 to my init code, and that works.
I've just tested the forthcoming RRF 1.18RC1. If you create a tool with no heaters, extrusion does work using G1 E commands. However, DWC 1.17+2 greys out the Extrude and Retract buttons. This appears to be fixed in the beta of DWC 1.19 that chrishamm has given me to test.