abently

Thanks guys. Sounds like you have pin pointed the issue... =) The string I was using is actually braided string but cotton... I plan to pick up maybe 0.5 - 0.75mm black fishing line instead. I tried contacting some of the Bricklink Sellers in Perth where I am to see if I could find a local enthusiast nearby to save me the hassle of ordering and waiting for shipping but no one's responded since last Friday... =(

Thanks Doug. Yes, the sheaves/pulleys do have round holes and are fee to rotate independent of each other.

Can you explain this??? Pics attached.... Don't pick me on the improvised axles, was just testing out my design before putting in a Bricklink order.

Hi guys, Have a mod'd 42042 (Catweasal MOC) and then added more boom, larger tracks + extra counterweight. Decided to add a few more sheaves to assist the motor boom up with a load on the hook but am having trouble getting the sheaves to distribute the weight evenly across all 12 / 14 sheaves etc. I've made sure all the sheaves have free play in them and are not binding up..... also made sure to reduce the angle of the rope from the motor to the first sheave to 0 degrees so that there is no side pull on the sheaves. I was thinking maybe I need to grease the shaft and side of sheaves to reduce the friction further but now that I think of it, could it possibly be due to flex in the shaft / frame at both ends that loads up the sheaves unevenly? On the other hand when I had the sheave designed 4 wide but 2 rows on both sides (so 8 sheaves wide in theory), I still had the problem with the last few sheaves / ropes having no tension on them... Any ideas????

Nice. Any chance you could post MOD instructions?