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How to define a spiral around a hollow cylinder, without "overhangs"
Hi all, I'm trying to model a rounded "thread" around a hollow cylinder, to create a collet for a flexible spiral vacuum hose (). I've gotten to the point of sweeping a circular shape around the cylinder and then hollowing it out (sweeping around the hollow cylinder was causing the thread to "poke" out of the inside surface as well). However I can't find an "elegant" way to avoid the thread appearing above and below the top and bottom of the cylinder (see image). I've thought about adding a couple of extruded boxes set to "remove" to cut out the spillage, but is there a better or more elegant way?