- Joined
- Feb 19, 2016
- Messages
- 326
O.K. guys. Matt at PM gave me a good deal on this incomplete dividing head and it's on its way. I will be ordering a 5" or 6" 3 jaw chuck and backing plate for said dividing head. If you look in the pic and notice the degree ring and the brass pointer mounting screw, this is what I want to fabricate a ground to.
The degrees will get machined off of the ring and I want to use a copper "brush" radiused to ride on the old degree ring using the mounting screw for the pointer. I need to come up with simple ideas to keep a bit of pressure on the copper brush to ensure contact. A short lead will be bolted to this part to connect my ground clamp to......ideas? I was thinking a "leaf spring" type setup with a copper brush bolted to the end but, 1/16 +/- spring steel is hard to find.
I have a dc worm drive motor, #25 chain and small sprockets along with a reversable speed controller on hand.
The degrees will get machined off of the ring and I want to use a copper "brush" radiused to ride on the old degree ring using the mounting screw for the pointer. I need to come up with simple ideas to keep a bit of pressure on the copper brush to ensure contact. A short lead will be bolted to this part to connect my ground clamp to......ideas? I was thinking a "leaf spring" type setup with a copper brush bolted to the end but, 1/16 +/- spring steel is hard to find.
I have a dc worm drive motor, #25 chain and small sprockets along with a reversable speed controller on hand.
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