535,210 active members*
3,423 visitors online*
Register for free
Login

Search:

Type: Posts; User: Jim Dawson

Page 1 of 17 1 2 3 4

Search: Search took 0.07 seconds; generated 58 minute(s) ago.

  1. Re: Weird , the relays on the BoB are triggered when closing Mach3 software

    Hit your E-stop button before shutting down Mach3. On power up, pull the E-stop button out after Mach3 is started and stable. If you don't have and E-stop button wired in that kills power to the...
  2. Re: What dimension/gauge steel tubing do I need for a bed frame?

    A standard bed frame is normally made from 1 3/8'' x 1/8'' angle. But it is a high carbon alloy steel that is heat treated to about like a spring. The real question is: Why not just buy one? ...
  3. Re: Knee mill conversion/ controller advice please

    I would be lost if I were not able to operate my knee mill manually. It will operate as full manual or 2, 3, or 4 axis CNC, all done with a flip of a switch and a lever to engage/disengage the Z...
  4. Replies
    60
    Views
    244

    Re: Motors for small production machine.

    Not exactly sure what the base of the stuff is. It's very fine grain, I accidentally chipped a small piece off when I was moving the machine, so could look at the structure. It looks like morter. ...
  5. Replies
    60
    Views
    244

    Re: Motors for small production machine.

    About half the mass of my CNC lathe is concrete, some special blend developed by Hardinge, ''Harcrete''. They built the frame, presumably cast iron, then filled everything in with concrete. You...
  6. Replies
    60
    Views
    244

    Re: Motors for small production machine.

    The Galil is a motion controller, and could operate as a stand alone in some applications, but not in a CNC machine tool. It has no idea what G code is, the only thing it understands is encoder...
  7. Re: Faulty Z Axis teknic Eclipse Servo Drive For Digital Express

    There must be a data tag on the drive somewhere. Multicam never built two machines the same, so you need a data tag on the components.
  8. Re: Knee mill conversion/ controller advice please

    Mach3 does not work well with Mach3. I have done 2 Mach3/Galil setups. In both cases I removed Mach3 and used my own software in the end, but it does work with the plugin. Would not be my first...
  9. Replies
    0
    Views
    50

    Re: AMADA HFBO 220

    Loose cable to the controller maybe?
  10. Replies
    60
    Views
    244

    Re: Motors for small production machine.

    I like your plan B, I was going to do the same thing on my manual lathe, but bought a CNC lathe instead of retrofitting my manual. It is possible to make a zero backlash system for a rack & pinion,...
  11. Re: Knee mill conversion/ controller advice please

    Looks like a nice mill.

    DMM servos are an excellent choice, I have installed a few of them and have been happy so far. I have 4 of the 1.8KW units on my CNC lathe, been working great for the last...
  12. Re: Faulty Z Axis teknic Eclipse Servo Drive For Digital Express

    What is the model and part number of you bad drive?
  13. Replies
    0
    Views
    86

    Re: HACO Pressbrake controls upgrade.

    Looks like a standard glass scale with a 5V quadrature square wave output, 20 micron resolution. Should interface with any motion controller encoder input.
  14. Replies
    0
    Views
    86

    Re: HACO Pressbrake controls upgrade.

    Thank you. Yes, attached to the bottom tool.
  15. Replies
    60
    Views
    244

    Re: Motors for small production machine.

    Take a look at DMM Technology servos. Inexpensive, well documented, and great tech support. DMM | AC SERVO DRIVE | AC SERVO MOTOR | ROTARY ENCODER I have installed a number of these and been happy...
  16. Replies
    0
    Views
    86

    Re: HACO Pressbrake controls upgrade.

    Looks like that panel needs some love :D

    I built a 3 axis servo back gauge (ok steppers but who's counting) for my press brake. I'll get it wired up one of these days.

    This one is also...
  17. Re: Pulley/Socket Size Calculations Needed

    A 1HP 1725 RPM motor and a 3:1 reduction would give you similar performance, with a little wiggle room for overload.
  18. Replies
    5
    Views
    50

    Re: Pressure Drop in Chuck

    What is the pressure at the chuck actuating cylinder? Is the cylinder leaking internally?
  19. Replies
    0
    Views
    86

    Re: HACO Pressbrake controls upgrade.

    Sounds like a fun project. The hydraulic logic is not too different than electrical logic. The keys are the servo valves. Logically they work like any servo drive. So with linear encoder feedback...
  20. Replies
    12
    Views
    71

    Re: Machining a funnel

    It's a pretty simple piece to make if you have the tools. It could be done in a mill, but a lathe would be easier. Might be a good excuse to buy a lathe :) Carbide would pretty much require an ...
  21. Replies
    12
    Views
    71

    Re: Machining a funnel

    Yes, I think that will work. And yes, you would need to drill the 0.050 hole first. Maybe more like a 0.032 hole first then cut the chamfer. Maybe a #1 center drill would be a good place to start....
  22. Replies
    12
    Views
    71

    Re: Machining a funnel

    These would make pretty quick work out of that.

    https://www.amazon.com/Freud-Dia-Grooving-Shank-20-108/dp/B00004T7E2/ref=sr_1_42?dchild=1&keywords=90+degree+v+bit&qid=1610177487&sr=8-42
    ...
  23. Replies
    9
    Views
    140

    Re: Spindle bearing preload issue?

    Not sure what bearings you are using, but based on my best guess of the size the load rating should be at least 8000 lbs static. 0.004'' seems like a lot of movement.
  24. Replies
    9
    Views
    140

    Re: Spindle bearing preload issue?

    Could the Z axis be a bit loose? If the material was not rigid, the effect would be the same as a loose spindle. Maybe run the test again, but try increasing the feed or stepover to load the tool a...
  25. Re: Emco 320: Supply Power or Servo Amp issue?

    Yes, the control side is single phase.
  26. Replies
    15
    Views
    181

    Re: Holding round objects vertically!

    There is really no reason for the part to stick up above the vise too far. You just put the pocket inside of the vice for the most part.

    But I do like your idea of building a fixture that bolts...
  27. Replies
    15
    Views
    181

    Re: Holding round objects vertically!

    I am not explaining myself well. Let's try pictures :)

    I just arbitrarily placed a .250 dowel pin hole at the center of the fixed jaw side, you of course would want to place and size it to fit...
  28. Replies
    15
    Views
    181

    Re: Holding round objects vertically!

    You machine a mating dowel pin hole into the soft jaws for locating while you are making the soft jaws. That way you only need to flip the part over and tighten the vice again. I would probably...
  29. Replies
    15
    Views
    181

    Re: Holding round objects vertically!

    I'm happy I could help. :)

    About 80% of machining is work holding and setup. You are only limited by your imagination.
  30. Replies
    15
    Views
    181

    Re: Holding round objects vertically!

    Clocking is locating a part radially, so this could be anything from a locating pin, to a flat on the OD of the part, even a bolt hole.

    I see in the picture that there are already locating pins...
Results 1 to 30 of 488
Page 1 of 17 1 2 3 4