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    Piano wire gripper design

    Check "wedge grips" in Google. That what they used in a Wire-Mill.
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    Nema 23

    what you don't want to do is run the machine at it's limits. that's how steps get lost and you make bad parts. you want to keep the speed lower to prevent a stall situation. lower acceleration helps too but then there are limits to how well it follows a curve at high speed without slowing...
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    Nema 23

    Yes dman your are right sw6 is off, does it make a difference if it run at 20,000 steeps or 10,000. The stepper motor are from automationtechnologiesinc.# KL23H2100-30-4B they are rate at 5.1V 3.0A and 495oz .On the site of CNC4PC they have the same stepper motor whith the same number but rate...
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    Nema 23

    Thanks Dman, I put : step 20,000 velo.25 acc.10 now the table move the same as the dro. The table as a travel of 8in and move from one limit to the other in 20sec. I think its slow . When I raise the velocity the motor stall , if I can go faster I live with it.
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    Nema 23

    I will be happy whit a precision of .0005 . 16 on the motor and 40 on the lead screw.
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    Nema 23

    Thank every one. Here is where I am now. Nema23 382oz 3.0A stepper motor, DM542A driver, CNC4pc C1G breakout board, 48V 12A power supply. The lead screw as a pitch of .100 and there is a 16 and 40 pulleys. Everything is connect, the 3 motors are on the mill and move, I don't think I have...
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    Nema 23

    I am using Mach3.
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    Nema 23

    I have a dead Emco F1 milling, and I am trying to upgrade the electronic . I bought a Chinese kit: 3drivers DM542A, 3stepper motor 280oz, 1 power supply and 1 interface board. I never was able to run any stepper motor whit the original board.A friend lent me another Chinese board, with that one...
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    Long Work

    Jeremy, When I said "cut the extra lenght" I mean with a saw no part off. Alain
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    Long Work

    Hello Jeremy, The only way you can machine your shaft is to put it in the lathe with the center at the end. Live 30.5" out of the chuck. Machine the dimension you need close to the chuck, make the thread to 3/4 then cut the extra lenght. Alain
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    Looking for Alum.

    Thanks, find it at Sweetbay grocery store. Now I have to try it. Alain
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    Looking for Alum.

    I tried two Walmart Superstores and I when to Publix (grocery store) didn't find anything. Any suggestions ?
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    Looking for Alum.

    Hi, I am presently in Florida, and looking for Alum to dissolve a tap in a brass part. In which store should I be looking? Thanks
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    Starrett micrometer

    I have some used 0-1 micrometer to give. They are Starrett T230 with case. Asking $10 each for shipping. Merci Alain
  15. P

    Help with a silver solder problem

    Where I use to work , I was the only machinist and every time the welders had to fix a probleme like this I machine them a graphite plug. Work every time.
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