Prusa Mk2/s Extended Y Belt Holder (fixes calibration issues)

If you have ever had the frustration of the Prusa Mk2/S calibration failing to find the bed sensor points and/or failing after multiple iterations of attempting to complete the initial 4 point calibration routine, then this may be the part you need.

If you look at the position of the front sensor point on the bed in relation to the PINDA probe when you run the calibration you may find that the PINDA is sitting about 5-7mm in front of the point on the bed. This means that the calibration WILL