I’m self-quarantined as a precaution. What better to do than use Sketchup to create parts for my vintage sewing machine on my new 3D printer.
I want to print a small cylinder with 8 external full-length flutes. A coil spring will surround the cylinder and the tail end of the spring will fit into one of the flutes to anchor the spring and keep it from rotating.
I’m trying to draw the end of the cylinder and then extrude it to the required length.
I think I probably have to scale up to draw it and then reduce it for printing. I think I should be able to make use of circle segments for spacing of the flutes. The top and bottom of each flute should be gently rounded. I hope to draw one flute and then copy it around the perimeter.
I have a preliminary skp file but it’s only progressed to the point where I’m totally confused.
Singer 237 check spring anchor cylinder.skp (90.7 KB)