The length for the y axis 10mm threaded rods is to short. Because the bearing holder is standing out too far towards the center of the printer. This means the timing belt holder under the print table pushes against the bearing holder when moving the table to the front effectively reducing print size by at least 2 cm in the back.
If I had known this before I would not have disassembled my good old reprap wallace. Now I am stranded with the even less print volume than before.
Misengineered project. Should have printed the Einstein variant.