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  1. Coadster32

    Anybody know how to slow spindle ramp up?

    Instead of changing it, and putting it back for rigid tap jobs, why not just call up a lower rpm, and add a dwell. Repeat to step up to whatever rpm you're looking to go to. Cumbersome...I understand but might be functional enough for your needs.
  2. Coadster32

    G2/G3 Arcs on Non-Orthogonal Planes

    I have deburred like this in the past as well. I just did quadrant acrs in Z/Y plane, and added X values to compensate for the thru hole radius. I understand this not to be perfect, but for deburring purposes, it has worked out pretty well.
  3. Coadster32

    Anti-vibration Boring Bar

    Sandvick makes an anti-vibrational bar. Call them up, tell them you're curious about it, and find out what they use.
  4. Coadster32

    turning drill shanks

    We hard turn with Iscar 807 grade without much issue. Obviously use low SFM, so your 1000rpm machine should be fine. It seems as though "how hard is hard" might be your issue....as you already stated. You may not WANT to grind this batch, but we all sometimes have to do what we don't want to...
  5. Coadster32

    Looking for realtime video training on CNC Lathe with live tooling

    Seems like you need someone there to help you, and you might not really understand that. Facetime is NOT the same. Most likely anyone who tries to help you by that method will get frustrated pretty quickly....not to mention the receiver of said training. I agree with needing someone local. Best...
  6. Coadster32

    Cool Harmonic Drive Animation

    That was pretty cool. Thanks for sharing.
  7. Coadster32

    Mastercam Radius Question

    That was it....Arc filtering. Code is so much more understandable and shorter. Thank you so very much for the reply.
  8. Coadster32

    Mastercam Radius Question

    My question stems from using Mastercam for doing Mill/Turn work. If I'm engraving a circle wrapped on the OD of a part and use the C-axis, it spits code out a mile long, all G01's, and a lot of feedrate changes. If I switch to Cylindrical interpolation, it does the same exact movement code, and...
  9. Coadster32

    CNC Programmer vs CNC Operator, Career questions.

    Don't be caught pigeon-holing yourself. If you're nothing but a programmer...what will you do when there's nothing to program? Same for any other position. Becoming well rounded is most valuable to you, and whatever company you're working for. It also keeps things from getting dull, as there's...
  10. Coadster32

    Best CAM for turning?

    I do mill/turn work as well. I have used Featurecam without much issue. Yes, the interface is different from say Mastercam, but just like anything, you need to just get used to it. If you already have it, then you should learn everything you can about it before tossing it to the side. It is good...
  11. Coadster32

    Macro Work Shift Question

    I see it now in your book on page 44. You list them as read/write variables. That would be most helpful. Much appreciated, and apologize for the misspelling of your last name.
  12. Coadster32

    Macro Work Shift Question

    So we have an older lathe program that I'd like to update a bit on. It makes parts out of a bar that sticks out 12" from the chuck. It's plastic, and there's no chatter involved in cutting them off. It used an old G50 position setup. After the part is ran, we'd rapid out to Z6. and then code in...
  13. Coadster32

    Small shop coolant options...

    You could try Hangsterfer's 5080 coolant. Non-toxic.
  14. Coadster32

    massive backlash problems!?!?

    There looks like a lot of movement in the last video switching from in/out. Parts drawing would help...I agree. Snugging up the Z-gibbs wouldn't hurt if you haven't tried already, it might indeed help. (Stranger things have happened).
  15. Coadster32

    How is accuracy of modern CNC machines affected by temperature changes?

    Keeping the shop at a "normalized" temp should be considered overhead, a business expense, not a variable. I help a friend out in his shop a few times a month. This month he wanted me to setup his slant bed lathe to run a .0002 window on a journal 1.000 inches long. It was 4degrees outside when...
  16. Coadster32

    Transfering Program -

    In the big picture...a small program is really nothing to be of concern. You should however, have a central computer with editing software tied in with all of your machines through a switch box, (or something of that nature). If you already do, send it to the computer from the machine, and then...
  17. Coadster32

    Aluminum Chip breaking insert help...

    You might try a G74 pecking cycle. It's not just for drilling. You can "pocket out" your material with it.
  18. Coadster32

    does anyone Scotch Brite parts in a lathe?

    We've scotch-brited in lathes before, and every once in a while still do. Mostly on round shafts, to dial in a surface finish on material that tears. We've also made a spring loaded tool to mount in the turret...Just swap pad out, and you're good to go. Now scotch-briting hex stock while...
  19. Coadster32

    Where do the SFM values come from

    If one of the kids ask, you can tell them that the video game writers came up with SFM numbers. They'll listen then!!:D
  20. Coadster32

    thread description question

    Not certain that there is a true class for what you're describing. Perhaps calling it a "Modified" 10-32 triple pitch with only one lead...Or a #10-10.6(Just kidding...couldn't resist). Either way, if someone else is making it for you, they'll be calling for clarification.

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