Trium Delta Problem - Help

[daveinhull]

Hi,

I’m hoping someone can give me some help as I’ve exhausted all the things I could think of.

I have a Trium 3D printer (Delta) running Merlin software. It was working perfectly up until a week ago when it crashed in the middle of a print. Once I’d got all the filament cleaned and came to use the printer again it had a very strange problem.

I zeroed all the axis and the z-axis and x-axis work fine, but the y-axis has a problem that it traverses the bed at an incline, i.e. if I lower the z-axis to about 10mm of the bed, moving the x-axis across is ok, remains 10mm, but moving the y-axis the head drops to about 5 mm at the front and rises to about 15 mm at the back. The real confusing thing is that if I raise the x-axis to around 300mm and do the same thing there either is no effect on the y-axis or its extremely small.

Does anyone have any thoughts on where I should look?

P.S. I’m suing S3D, but the problem exists in Repetier as well, both set up for Delta printers.

Many thanks
Dave

[daveinhull]

Hi All,

Ok, found the problem, it was a loose gear on the stepper motor, friction at higher Z values was less that the friction of the gear, but at lower z values when the friction of moving the axis over greater distances was high, it slipped, but almost perfectly every time the same way!.

Thanks
Dave

[MaddieG]

I’m glad you were able to solve this! What a tricky issue