Hello all,
I have successfully run more than 5 kilos of pla through my printer since building it 7 months ago, thanks in no small part to this forum. There have been no mods or replacement of electronics to this point, with the exception of a beefier power supply.
Immediately prior to this bizarre failure, the printer would home smoothly on all axes but when trying to print the machine sounded like it was grinding rocks. Print started on the wrong part of the bed and extreeme vibration throughout.
NOW
NONE of the motors run.
heaters work as does fan control
all motors work when driven via an external arduino shield.
Limit switches all have continuity to the controller
vmot and vdd present on all motor drivers
no burned looking or smelling components
all motor drivers remain at original calibration points as measured.
The pattern baldness is being caused by "tearing out my hair " being faced with a deadline and a dead printer.
Any help would be appreciated.
Edited 1 time(s). Last edit at 12/26/2014 11:00AM by NeilRG.
Not to be flippant, but i indicated that it is a stock printer an that vdd and vmot are both present and tha the driver cal voltages are correct. This would seem to rule out the powe supply.
Mechanically x an y axes are very smooth the z axis is stock with the limitations of the velleman design still in evidence ie less than perfect concentricity .
Just a suggestion.
If you want to try it great.
If not I will step away.
You said you put a different power supply on the printer.
You should try the one that came with the printer.
My thought is maybe the new power supply is failing under a load and not providing the correct current.
This is just a thought and something you can try since you have extra parts.
I can do that. Question what is the likelihood that i need to reflash the board? Re the power supply i confimed it is not sagging under load . It is an industrial supply.