OK, I can't for the life of me figure out how this guy has 3D Printed Slinkies.
http://thingiverse-production.s3.ama...w_featured.jpg
I don't udnerstand, because they stack perfectly. See below
http://thingiverse-production.s3.ama...w_featured.jpg
And here is the Design file:
http://thingiverse-production.s3.ama...w_featured.jpg
How do you keep the layers from sticking together?