04-07-2020, 11:22 AM
https://www.practicalmachinist.com/vb/ge...ks-174149/
Maybe it's the type of backing on the belt:
"a few pieces of wire dragging on the belt will help. Back when we had a wood shop 30 years ago and the belt backing was changed from cotten to polyester, static became a big problem. the polyester was then changed to polycotten IIRC, obviously every one had the same problem. When you are running a 20 hp 18 inch vertical sander that is a big problem. There was some spray the supplier gave us, but it was not practical for us to use, probably not effective after the first few minutes anyways."
I've been searching for static dissipation strip brushes but have yet to find any. You know the type. Like the brushes on a printer that rub against the paper.
Anyway, it does not seem that hard to ground some little metal strips to from the machine to near the back of the belt. Copper foil, etc. would work.
I get static here in Michigan in the winter but not the summer. It is a bit of a head scratcher that you don't see it in AZ that normally runs negative RH in the summer. Could you have grounded shoes? Tennis shoes with rubber soles would exaggerate the problem.
Maybe it's the type of backing on the belt:
"a few pieces of wire dragging on the belt will help. Back when we had a wood shop 30 years ago and the belt backing was changed from cotten to polyester, static became a big problem. the polyester was then changed to polycotten IIRC, obviously every one had the same problem. When you are running a 20 hp 18 inch vertical sander that is a big problem. There was some spray the supplier gave us, but it was not practical for us to use, probably not effective after the first few minutes anyways."
I've been searching for static dissipation strip brushes but have yet to find any. You know the type. Like the brushes on a printer that rub against the paper.
Anyway, it does not seem that hard to ground some little metal strips to from the machine to near the back of the belt. Copper foil, etc. would work.
I get static here in Michigan in the winter but not the summer. It is a bit of a head scratcher that you don't see it in AZ that normally runs negative RH in the summer. Could you have grounded shoes? Tennis shoes with rubber soles would exaggerate the problem.