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Type: Posts; User: marvfrankel

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  1. Replies
    8,430
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    331,512

    Sticky: One of the lurkers

    Hi Matt and all,
    I've been hanging around for a while, and seldom posting. I'm retired, and spend lots of time in my shop (which used to be a garage). A few years ago I did a Sherline...
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    3
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    551

    Small part

    Bob,
    Sorry about the quality of the sketch, but I had trouble reading the dimensions myself. I have a factory drawing on the way to me now, and if it isn't good, I'll do an AutoCad...
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    551

    Small brass part (sketch attached)

    Guys,
    A client needs a quantity of these parts, possibly 100 pieces. I can probably furnish a better drawing than the attached sketch.

    Thanks,
    Marv Frankel
    Los Angeles...
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    Guys, I'm glad to hear that there's a...

    Guys,
    I'm glad to hear that there's a San Diego group interested in the same things we are. Take a look at our web site, Southern California Home Shop Machinists, SCHSM.ORG. Our club is...
  5. Limit/Home switch wiring

    Jerry,
    I realize that it's been some time since you originally posted the wiring diagram, but it really helped me understand things a lot better. Although your diagram shows both limit...
  6. Replies
    2
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    1,252

    Worked like a charm

    sharp-shooter,
    Thanks for the advice. I loosened up the stepper, removed the belt and applied the screwdriver to the inner timing pulley. It broke loose pretty easily.
    ...
  7. Replies
    2
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    1,252

    Series I, Z axis locked in up position

    Guys,
    My Series I Z axis is locked in the up position, because my limit switches are not working yet. I removed the shroud that covers the timing belt and stepper pulley, and the...
  8. PlasmaCam

    Eddie Paul, who builds custom cars, uses the PlasmaCam, and is in El Segundo, just a few miles west of the 405 Freeway. He's a really nice guy, and I'm sure he'd be glad to show you his equipment....
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    Guys, I'm amazed at what you can do...

    Guys,
    I'm amazed at what you can do when you read instructions. All it took was moving a little jumper on the breakout board, to get the mill running, Only cutting air so far, but to...
  10. Replies
    3
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    1,031

    Steppers won't turn

    Guys,
    I just finished wiring a new controller for my Bridgeport Series I CNC. It has a Bob Campbell breakout board with 3 Gecko 203's, fed by an HP Power supply at 50V 6A. When I fire...
  11. Gecko to Superior wiring

    Rob,
    Please email the Acad drawing to me at [email protected]. I printed a wiring diagram for Superior and Sigma steppers, that someone posted in one of these forums. I forwarded it to...
  12. Rob, I would be interested in how...

    Rob,
    I would be interested in how your Bridgeport is running now. I'm doing basically the same conversion. I received my Gecko 203's, Campbell breakout board and relay board this week,...
  13. Replies
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    957

    Bandsaw

    VWSatOz,
    I guess that my problem is, too many TPI. I think that the blade I'm using is about 14 TPI, and the reason is because I generally cut aluminum plate of 1/2" or less, but I...
  14. Replies
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    Bandsaw

    Mike,
    I don't think you can do it the easy way. If you had a 3-phase motor on the saw, you could probably do it with a VFD, but you'd be spending lots of money doing it. I have a 12"...
  15. Replies
    9
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    1,309

    Jackson, For the time being, I think...

    Jackson,
    For the time being, I think I'll use the speed changer as it is, until I get to know what I'm doing. Are you controlling the speed with the VFD dial, or do you have relays...
  16. Replies
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    1,309

    Power Supply

    Jackson,
    Thanks for the very comprehensive explanation of your conversion, and the photos you posted. I have my choice of phase converters. I have a rotary converter, and a VFD that...
  17. Replies
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    Series I power supply

    I just bought a Series I CNC mill, and would like to use the existing steppers and transformers, using Gecko 203's for drivers. Has anyone done a similar conversion? I'd appreciate any advice or...
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