Building: Frame is tipped to the left, compared to Y-X frame.  

Building: Frame is tipped to the left, compared to Y-X frame.

I am building the I3 and ran into a problem I can't seem to fix. I levelled the Y-X frame and it does not tip. It all seems to be perfectly level.

But when I add the (Z)-frame , it is lower on the left side than on the right side. I put the threaded rods as deep as possible into the slots, but it does not seems to do enough.

When I measure the distance from the heated bed carriage to the frame, it measures 0.4mm MORE than on the right side. That means that the heated bed carriage tilts to the right.

I redid most of the YX frame, because I can only think of being it a problem there, but it does not seems to solve the issue, when putting everything together, I end up with the same results.

I ran out of solutions, I hope someone here can point me in the right direction.

Thanks in advance,
Erik