3Dtje Improved Y axis (endstop-hole fix)

The included Y axis for the 3Dtje has some holes for the Y axis endstop, with what I assume to be M3 screws. Unfortunately the tolerances for this model are too large, and my printer can print a bit more accurately in X and Y than the model itself expects.

Since there is no space for nuts, I assume this was meant to self tap screws into the Y axis, which is fine by me, however my M3 screws fit super loosely and this is impossible with the stock model.

I've gone and sized the holes down