Weak stepper mount

Here is an attempt of a stepper mount to replace the B and Q brackets I am currently using.
The mounting face plate worked really well and has only a little warping (I am still using Evostick on a glass chopping board as the base)

The bit out to the left in the picture built as a tower however is very weak and would never be strong enough to mount a stepper on. There must have been a blockage in the extruder 2/3 of the way up the tower as there is a fault there.