Focuser - Holders are not joint strong enough

[TallFurryMan]

The horizontal holder and the two vertical holders are not joint strong enough. There is slack, up to a few degrees. Not that critical as the stepper is locked onto the micrometric knob, and also there is an overall cover to straighten everything, but it's sometimes not efficient to mount it.
However in combination with the friction issue, sometimes the stepper misses a step or two because it is off axis.