Ed,
I too bought the set up you have and noticed a wobble and wiggle as well. I tightened everything up and it seemed to help a lot but I still notice a wiggle when the machine makes quick small movements.
My Control box fit with no issue as you had
I love your corner bracket ideas and think if they were solidly attached to the frame sans zip ties they would definitely help and I will look into this so THANK YOU for the idea.
Some questions:
- Where did you get casters?
- How are they attached to frame?
- Do you or anyone know what these are and where they go?