Home position problem + goos skirt, but then pants :-(

[thegoodguy]

Did you check the axis correctly?

Hi,

Thanks for your reply.

First off, I apologise. I just now realised that the vertical axis is the Z-axis in 3d printing. I naturally assumed it was the depth (back-to-front).

When I first printed the sample owls, the HOME position of the nozzle was over the bottom left corner of the plate. Now, for some reason the HOME position has shifted to just off the bottom edge. The X and Z axes are fine (the nozzle is close to the plate level, and the nozzle is inside the left edge of the plate), but the plate travels too far towards the back, and so the nozzle is then below the bottom edge. See attached drawing.

The only thing that I can check, and alter, is the plate level, but that doesn't mpact the HOME position of the nozzle in the Y-axis.