To fix a problem of prints skipping leftwards on my FF Creator Pro, a repair guy came and advised to replace all the belts and pulleys. That done, he reassembled, The skipping is fixed but now I have new problems:

  1. Skewed holes in prints (see the photos)

  2. The gantry moves jerkily on the Y axis.

Are they related? Can anyone advise how to fix these two issues?