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Old Dec 05, 2012, 10:12 PM
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United States, MN, Brainerd
Joined Oct 2004
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New Winch Servo Drums

Will be making new drums. The originals are still useable, but they were experimental - made with old CD's, sheet PVC, different glues, etc. They were not adjustable.
The new ones will be stacks of 1/16" thick ABS discs. They will not be glued together, but clamped together with 4 screws. That will allow changing the core discs if a diameter change is necessary to fine tune the length of brace pull between the top and course yard tracks on the drum.
The 4 screws also serve as tie-off points for the 4 braces.
A cheap adjustable hole saw is used to cut the discs at the exact diameters needed.
Sketch attached.
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Last edited by DanL; Dec 06, 2012 at 08:22 PM. Reason: updated drawing to "as-built"
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