I would suggest you make the extensions as long as you practically can. With hindsight I wish I had made them 1.5 metres. The rigidity reduces the belt stretch effect, and you don’t have to wind as much belt out when connecting. I also use mine for theatre props and backdrops. I don’t bend as well as I did when younger so prefer to have it at a more manageable height. My anchors are fixed to the walls in an approximate rectangle 4 x 4.5 metres and at the height of the belts when Maslow Z fully down. If it was on the floor it would be possible to put a wheel on the end of the extension to hold it at a constant height.
I drilled a hole in each end of each extension, one end is fixed to the pivot point with a 1/4 in bolt and the other I drilled at 11 mm and drop a bolt through it and through the belt end. So far, working well. I had to change the Z values to 10mm as it appeared there was a divide by 0 error, which may have been fixed in a later release.
Good luck with this.
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