I have been trying to get what I think is a simple shape concept built for weeks and I keep running into one small problem after another.
The gist is that I want to carve a double helix pattern into a cylinder.
Using curve maker and upright extruder I get the following shape with one of the helix right and it carved into the cylinder on the left (using subtract).
The problem is that the bottom of the helix starting face doesn’t match the top. So when I go to carve the second helix both edges don’t butt up to eachother. I wish I could choose a begining extrusion point and an end extrusion point so they would both match.
I wish I could find an easier method to do this double helix…
temp-test.skp (217.8 KB)