My printer refuses to start printjob

Bed temp = 85 degree celsius.
Head for ABS = 235 degree celcius.
All temps are OK !
All power supply OK !
No limit switches are activated.
Fan Ok !
Supply voltage 15.4 V. Ok !

I am getting messages from the printer with ref to temps of bed and head.
I am using Cura on laptop. Cura receives messages of the printer (bed and head temps… Ok !)

I have been printing very high quality for over a year now. Until last thursday… I got a head crash into the ABS model…

Temps of all current driver buffers are OK !.
No hot spots on controller card.
All correct lights (LEDs) are lighten up. But not a single movement on any stepper, as the board is waiting for something. All temps are supplied now with separated independant PSUs. (Just for testing !!!)

I am afraid, I must change controller board now…

Can anybody think of an other reason, the printer refuses to start ?

Did you try to push the reset button?

Or try clicking on the OK button in Repetier.

Is there something displayed in the log window?

Yes, all done… and no messages are displayed… It just look like the steppers do not get any power, but they do, their buffers are handwarm, not hot…

Problem fix… 170 euro later… A new controller card…
Previous card, all voltages OK.
Printer under simulation mode refuses to start.
See if the velleman engineers pick something up. I am still curious what the real problem is…

[quote=“wisselseddy”]Problem fix… 170 euro later… A new controller card…
Previous card, all voltages OK.
Printer under simulation mode refuses to start.
See if the velleman engineers pick something up. I am still curious what the real problem is…[/quote]

If you mean the “dry run” feature of repetier, not that it ONLY works with REPETIER Firmware, NOT with MARLIN!

No, I have build my own simulator. with 4 motors, pots as heater feedbacks and switch to control end of loop.
The board refuses to accept commands from cura…
It happened suddenly… After it has been working for 2 years…

Did you try to reload the firmware?