the chain is touching, I don’t think it should.

this is why you need Ball-Point Hex Set (part number 5709A18 at mcmasters):

the chain is touching, I don’t think it should.

this is why you need Ball-Point Hex Set (part number 5709A18 at mcmasters):

Awesome! I’m glad to see a reprap being used in such a cool project, and building a polywell is definitely that. Good luck!