Calibration and Leaning Tower Problem

Hi reprappers,

I wanted to print a cube of 150mm x 150mm x 150mm. I noticed that my print have a leaning tower problem. The product is tilted. I know the common solution is to tune the XYZ axis to a perfect square. But looking at the mendel design with so many parts that can create errors, is there a software way to correct the leaning tower problem ?

I was think if the sli3r or marlin firmware can "offset" the G-code to correct the mechanical errors that is in the mendel design. Anyone got any solution for a perfect print by software approach ?

rgds,
I love reprap

Edited 1 time(s). Last edit at 06/06/2013 11:50AM by changfrancis.

AFAIK there is no magic way to do it. It's an iterative process.

1) Print your calibration object
2) observe which axis (or axes) is (are) off
3) adjust the machine
4) repeat

You need to make sure that the print head is the same distance away from the bed both on the left and right and in the front and back, but you also need to make sure that the Z rods are perpendicular to the print bed

You could pull the STL into OpenScad and apply a matrix transform to it and then re-export it, or build a Mendel90 instead!

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