I am picturing a ratchet block as used for sail sheets - they have textured or ridged, gripping sheaves - only instead of the sheave being locked one way, it is only breaked. Rope could be pressed into the sheave by a spring.@Marsupilaami
I’m not sure how to answer your question.
If I recall the rope would pass around a tight Vee like you find as the self tailing mechanism on a yachting winch. Instead of a ratcheting mechanism the torque converter would control the rotation
All of this discussion was on the original Arbo discussion forum hosted by ISA No archives
Add in a battery winch for pre tension?A very clever friend of mine suggested using a small torque converter in reverse.
An adjustment could be built in with a Bluetooth controller so that the rigger/cutter could make changes remotely.
Turn it completely open for trading the rope end back up. Then preset a load for the drop
Any Canadians here might know @Dave Spencer as the second place winner in ‘Canada’s Biggest Know it All’.
I bought a precision Matthews 25 with dro. It has electronic speed control with two position belt for high and low range speeds. For my needs this machine is perfect. My only complaint with it is the short quill travel (2”), but it has a dovetail z axis so that makes up for it somewhat. I bought the stand with it but had to lift the whole thing 8” to get the table to a comfortable working height. The whole thing cost less than $4000 and is small enough to fit in my little shopJamie, been meaning to ask you what model mill you got? Do you have electronic speed control? I put a dc drive on mine and never looked back or budged a belt.