Need help: printer connects but doesn't do anything
My school has this generic printer that uses Repetier to manage the printing process and I can't get it to work. The printer connects to Repetir Server and Host but nothing works (motors, heated bed, extruder, etc). After I send the printing job the Host returns the expected printing time and that's it. The printer LCD displays a "Bed heating" message but it doesn't start. I don't know how to troubleshoot this thing. Does anybody have any clue where to start?
Comments
Also bed uses highest current and has normally an own fuse. If it does not rise temperature at all also higher value is set and output is 100% you have a damage in your electronics or firmware is configured wrong (in case you wrote firmware configuration). Check for broken cables and burned bed fuse. Can also be the mosfet from board, but that is not easy to replace - just by soldering in a new one.
I didn't configure the firmware, it came preconfigured from the factory. During installation I asked the software to autodetect firmware configuration and it is now set to use Marlin, could that be the problem?
If it is something more complicated than broken cables or a fuse I wont be able to fix it.
Thanks for the help!
First you can just remove all M190/M109 commands from a gcode, then you should be able to print just without hot bed. If you print PLA it might work, especially if you use a specially coated bed or have something like 3d-lac on it. Hot PLA sticks normally quite well on unheated beds, just other materials like ABS require it.
> If it is something more complicated than broken cables or a fuse I wont be able to fix it.
Depends on your electronic skills I'd say. With a multimeter it is quite easy to measure where you stop getting power and that part must be fixed. If in doubt, do you have physics teacher on your school?
I'll try you advice on M190/109 commands.
we have and electronics department in our school but I can at least check with a multimiter for broken circuits/components.
Tank you for the help! I"ll let you know if anything worked.