P.I.N.D.A. Probe Misaligned

This is a very common issue that can be fixed by fine-tuning the build of the printer.

Actually there are several factors and adjustment to consider to fix this, everybody have to make it once.

To fix that, you should consider the Pinda position on multiple position on the heatbed, not only one. In fact, I consider that fixing the first 3 front positions should be enough to fix the 6 remaining positions.

Here is below 3 different issues that you can have:

1) Side shift:

This one should not be seen often, due to the build design. But the End-stop can have a tiny side translation needed. For that you need to unscrew the screws holding the endstop, push the endstop on the proper position, and while holding it, screw it again.

2) Front shift:

This happen when the Z-frame is not positioned at the proper distance from the back of the Y-frame. To fix it, just unscrew the M12 bolts holding it, move the Z-frame back (or front, depending of the position of the pinda relative to the heatbed probe circles, and tighten it back. Be sure to maintain the Z-frame flat while doing that, so I recommend you to remove the 4 pads under each corners and to place a stack of papers or business cards below right and left side of the Z-frame during this operation.

3) Twist shift


Probably the most common issue, and this is why considering a single pinda position is not helpful. This happened when each side of the Z-frame are not at the same distance from the back of the Y-frame, or if your Y-frame is not perfectly square.Like the front shift, just unscrew the M12 bolts holding it, move the Z-frame back (or front, depending of the position of the pinda relative to the heatbed probe circles, and tighten it back. Here again, be sure to maintain the Z-frame flat while doing that, so I recommend you to remove the 4 pads under each corners and to place a stack of papers or business cards below right and left side of the Z-frame during this operation.

Most of the time, you will have a combinasion of front shift and twist shift at the same time. Take your time to fix the alignments based on these explaination, consider this time as an investment, you'll be very happy after :)

Original post can be found on our forums by Christophe Pecqueux.

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