I was actually thinking of something similar but more like how a vehicle subframe and suspension works, using something akin to tie rods and a triangular support. This would, of course, negate the ability to slide which I think was part of the design intent…
I made this a bit exaggerated with the triangle bracket a bit higher than I would mount it just for illustrative effect, but the idea would be to link the outer bolts to the center support.
One could use a threaded rod on each side with adjustable ends to compensate with as time goes on and that way you don’t have to fully commit to the initial geometry.
Pretty awesome stand though garf, it looked good in the cad drawing that you posted over in share something, but this turned out better than expected.
Sure, there are lots of ways to strengthen it, but the idea was for the digis to be easily removable without unscrewing anything, and have the digi remain useable when off the stand, without removing the brackets. It’s far from ideal, loads of room to improve - for starters, although the stand doesn’t tip over when only one digi is attached, it’s quite a pronounced lean
Now I can see it, I can see that it really is ingenious! Nice one.
The only thing I could recommend to reduce sagging but keep the great idea intact would be if instead of the rod, you could have a length of angle running through. Although, I don’t know if angle that small would be much stronger.
One of the causes of sag with this design is that there’s no middle anchor bolt on the central brackets, only one either side, so the rod and the plastic bracket are bending slightly in the middle. I’m going to make the 2 central brackets solid, rather than open at the bottom (not easily seen in the pic, i was trying to save on plastic waste and print time here), might help. I’ll also increase the infill.
In this pic you can see the cutout on the bottom of the brackets…
