XY axis angle calibration?

[tanakas]

Hello,

I have a Geeetech i3 pro b, and the X and Y axes are not perpendicular.

I was not successful in correcting it mechanically, because the Geometry (basically parallelograms) is not very suitable for angle corrections.

Before I start drilling and sawing: how do you effectively calibrate the XY angle?

Also, I was not successful in finding software-based calibrations (like with the Original Prusa i3 mk2). Is there a possibility in Marlin?

[William]

Hi,could you show some pictures or videos about the X,Y axis?It will more helpful for me to understand.

[silviop]

Same thing here , i buy i3 pro b and if i print square became parallelogram (about 1mm every 10cm).

there is no way to correct mechanically i think to print a front support with smooth rod holes shifted to compensate this angle.

[bjoern]

Hi,

I have the same problem -> 2.5mm every 150mm ... I have no idea how to fix the problem on my hardware.
Yesterday I wrote a little java programm, that correct the y-values in my exported stl-files.

With this workarround I can get acceptable prints.

The programm determines the lowest x-value in the stl-file and calculate for every vertex in relation to the lowest x-value an y-offset.

If you need. I could provide the code.

best regard

bjoern

[_kaktus_]

Gentlemen, did any of you try to correct the number of steps for 1mm stepper motor?

After all, this is the basic calibration of the printer.