It seems this depends on the frame’s rigidity and how smoothly the arms rotate. The new arms rotate smoothly, and what I’ve noticed is that wooden frames are more rigid than metal ones.
Here’s a folding frame that’s being tested:
It seems this depends on the frame’s rigidity and how smoothly the arms rotate. The new arms rotate smoothly, and what I’ve noticed is that wooden frames are more rigid than metal ones.
Here’s a folding frame that’s being tested: