Hello,
I have a very strange problem but first I will tell my configuration.
I have the Ultimaker Original and changed a lot but mostly the printerbed, I made a heated bed but it is not controlled by Ultimaker but by other equipment.
So I have a heated bed but the software of the Ultimaker doesn't know.
I have experimented with the firmware (because I tried it to let it controll by the printer itself but didn't work out).
So I made everything original again (as I said, the heated bed it not controlled by the printer anymore but I do it on another way).
I use Cura 15.04 and let Cura install the firmware (again) for the Ultimaker Original so everything is back to original.
Than I wanted to print a battery holder and everything went fine untill I was halfway through.
When the printer was printing the holes something odd happens.
It was jumping from the end of the hole to the next section and.......de feeder was suddenly turning the wrong side (for a very short time, just a very quick 3/4 turn and than back the right way).
The arrow with the word "EXTRUDE" is showing the way the feeder turns but when it is printing the holes is went suddenly a 3/4 turn the other way (see the red arrow).
Then it is going the right direction and by the next hole it is again turning the wrong way.
It is pulling the filement out of the nozzle so there is no plastic anymore to extrude.
See the print that was wasted.
Does anyone know where I must look for this failure?
And more important, how I can prevent for this occurrence?
Help!