I wanted to be able to tenson my Y belt without haveing to pull the machine apart to replace parts.
I found two things that where close and basicaly combined them.
Since this part was orriginaly a dxf that was extruded and I have no way to edit a dxf, I have recreated it from scratch in pure scad.
I did have to demel off my orriginal Y stepper braket to avoid disasembly :)
NB: Currently top is fractonaly to long and reduces my Y travel by 3mm.
I have added a verson with shorter head, by 3mm. Not test yet