I have been looking at online instruction manuals for various Drum type machines, because I had problems with a machine, and I think it was put together incorrectly from the factory.
The machine was the Central Machinery 66506, sold by Harbor Freight, a 1/2x50ft open drum machine that they sold for around $290. (apparently it's now discontinued or at least not shown online) It always tends to flip and kink the cable inside the drum when most of the cable is out of the machine.
The instruction manual for the unit is vague, regarding the direction that the cable is supposed to be wound inside the machine, but the picture accompanying the instructional text shows it wound in a counter-clockwise (left hand rule) direction when one is facing the outlet side of the drum. The unit has a short cable anchor, and this came from the factory with a rivet and a bolt fixing it to the drum, with the anchor cable leading away clockwise from the anchor point, as per the picture I attached.
The user manuals that I have found, that are explicit on this point, seem to agree that most machines should have the cable loaded in a clockwise direction.
My understanding is that most machines operate in FORWARD following the right hand rule, that is, if the thumb of your RIGHT hand is facing the direction the cables travel into the pipe, your right hand fingers will curl in the direction of rotation away from the palm of your hand. This is the same as standard screws, pipe threads, just about everything that doesn't have left hand threads.
Loading the cable into the machine, by the right hand rule, clockwise when facing the drum, would seem to me to mean that when an a cable anchored to the drum, is torqued, the cable will tend to expand out against the inside perimeter of the drum. A cable that is wound counter-clockwise, (left hand rule) inside the drum, would seem to want to wind around the inner drum wall, if there is one, when it gets torqued.
Regarding the cable itself, the cable that came with this machine is wound left hand, which means when the cable is torqued following the right hand rule, it will tend to tighten down on its core, which should have the effect of stiffening it.
Are there machines that have the cables wound in the drum such that they are supposed to tighten around the inner drum when torqued?
Is it possible that this Central Machinery machine was assembled with the anchor facing the wrong direction?
Thanks for your help.