I am in the process of rebuilding a renovated Weavemaster 4 Shaft table loom which has had a conversion to a counterbalance floor loom, and guess what? I have a few problems. I have been emailing Andrew Kieran and he has been a wealth of info. However, the setup for the lams has caused me problems. Andrew advised a setup as such: shaft - single central string - lam - string - pedel. the way i used the lam was to drill 7 holes ( as have 7 pedals) the central hole going up to the shaft and if needed directly down to pedal 4, or others. I had my doubts about this as there would be no anchor or pivot for the forces to be transfered.
So i changed the setup to this: shaft - two strings- lam - string - pedals.
this seems to work a lot better, however when i pull down shafts 1 + 3, 2 + 4 don't ascend evenly, so the upper shed would be off.
I wounder should i have weighed the shafts and balanced them for weight or just add balast to them?
Also is it advisable to create a block to stop the shafts from going u too far, thus forcing the other to move? And likewise for a lower stopper.
I liken this loom setup to a sash window, so wonder if a balast weight might be needed.
Please if anyone can help please...
When i push shafts 3 + 4 down shaft 3 glides partly back up, is this a matter of bad setup ( string lengths) or weight.