Rigid hot table bracket for HyperCube Evolution

The main goal is to get the most rigid mount for a hot bed on the table frame.

At first, I did not quite correctly understand how to use the HyperCube size calculator. Because of this, I ordered a hot bed 310x310 with holes 240x240.
But in the end I made, probably, the best way to fix a hot bed to the table frame, which can be implemented in my setup.

Now I have a hot bed mounted on M4 screws with a normal thread pitch (0.7 mm). On the handle made 70 marks, corresponding to the movement of the table at 0.01 mm. There are 7 large and 7 small protrusions, making it easy to mark the movement at 0.1 mm and 0.05 mm.

Principles of development
The principles on which it is implemented are rules! If you do not take my version of the bracket for your printer, but you will develop your own (files for SolidWorks are attached to the project.), I recommend that you pay attention to them!

1) The bracket must be short in order for it to be tough and light at the same time.
2) The brac