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Type: Posts; User: beanbag

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  1. Looking for info on Slo-Syn 440-EPI10 controller

    I inherited this piece of equipment which I assume at some point worked but now doesn't. It is controlled by Labview, which appears to send it commands over the serial port. It is called an...
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    Tormach stage loose

    Hello folks,

    The XY stage on one of the Tormachs I use* seems to be loose. By this, I mean that if I put an indicator on the spindle touching a vise, and then grab the vise and yank it towards...
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    7,617

    Maybe the gun drilling people have a solution for...

    Maybe the gun drilling people have a solution for you.
  4. Replies
    51
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    7,617

    Steve: Why only 4k rpm? What is the point of...

    Steve:
    Why only 4k rpm?
    What is the point of using a parabolic drill if you are still only going to take these tiny pecks?

    That's an interesting trick regarding not having a spinning drill...
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    Care to share your technique, or is that a trade...

    Care to share your technique, or is that a trade secret?
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    1,058

    Tool pullout is also caused by the precession of...

    Tool pullout is also caused by the precession of the tool as it is being deflected. So the less tool stickout you have, the lower tendancy to pull out. If you are already using the set screw...
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    IF you have guts, you can use the Tormach as a...

    IF you have guts, you can use the Tormach as a vertical lathe and run a turning tool up the spindle.
  8. Replies
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    An update on my parabolic drilling experiences. ...

    An update on my parabolic drilling experiences. Yesterday I used a 5/16 parabolic drill (Guhring 549 series) to make a deep hole on the manual mill. I was very impressed that I could do one...
  9. Replies
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    I have made lots of small stainless steel parts...

    I have made lots of small stainless steel parts on the Tormach 1100 with no real problems, except maybe one. Because it has stepper motors, it seems to leave "patterns" or aliasing effects when...
  10. How to use M998 tool changes with busted limit switch?

    One of the Tormach mills which I use, but do not own, has a flaky x limit switch. Due to all the accumulated crap in there, it sometimes doesn't trigger. Sometimes I can get it to work by blowing...
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    I dunno what is going on, since I left it up to...

    I dunno what is going on, since I left it up to the staff to fix. I suggested to them it might be a broken wire, but somebody said it was due to a blown transformer. Then they ordered another...
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    2,054

    X axis erratic behavior

    Hello folks, long time no see.
    The communal-use Tormach we have is busted.
    It was working fine for a long time, but when I came up to the machine, it had a problem where if you jog along the x...
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    At least you're not like that poor guy VaderSpade.

    At least you're not like that poor guy VaderSpade.
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    I edited my post just as you were posting. But...

    I edited my post just as you were posting. But if you go back to the very first picture, the marks or aliasing occur at the same angle of the circle, so to speak, even though I am milling out a...
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    Could be "resonance marks". I get what you are...

    Could be "resonance marks". I get what you are saying that if it is steps only they should be very finely spaced. This would still count as "marks due to stepping motion, which I am trying to...
  16. Thread: Tap

    by beanbag
    Replies
    28
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    3,715

    I recently tapped a buttload of blind holes with...

    I recently tapped a buttload of blind holes with a roll tap in aluminum. I think it was some guy named Ox either here or on Practical Machinist that said to use a high thread percentage for small...
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    It really is small steps in the part from the...

    It really is small steps in the part from the steppers. I have tried higher and lower SFM, feeds, etc and similar marks are always there.

    The most recent case of this was when I was doing an...
  18. Replies
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    What does "excellent result" mean? And what is a...

    What does "excellent result" mean? And what is a "non-excellent" result from a regular drill?
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    So how did the holes turn out? Does the shank of...

    So how did the holes turn out? Does the shank of the drill fit back in? Is it bellmouthed at all?
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    10 ipm at 5k is .001 feed per tooth, which is...

    10 ipm at 5k is .001 feed per tooth, which is about right for a .1" drill, or maybe a bit on the low side. I have also drilled 4k and 13ipm and still got broken chips.

    I am starting to think...
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    3" x 8" long- I would rather do turn milling with...

    3" x 8" long- I would rather do turn milling with the 4th axis (if you have one)
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    Just wanted to update that I did the exact same...

    Just wanted to update that I did the exact same cut at 5000rpm, 18 ipm, .11 axial depth of cut with a 2 flute instead of 3, and it seemed to work fine. My coolant flow was better this time, but I...
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    I like to use the TTS holders on a manual...

    I like to use the TTS holders on a manual bridgeport even when I don't care about height accuracy. Sometimes it is even faster than using the Tormach. One example would be drilling and tapping a...
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    All u need is a lathe cutting tool if you are...

    All u need is a lathe cutting tool if you are able to mount the work in the spindle. I have cut 316L this way with so much ease, as long as you have the right kind of insert.
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    ok, I get it that parabolic drills and A9 are...

    ok, I get it that parabolic drills and A9 are awesome, but I am still trying to figure out why I am having trouble here with a "regular" drill.

    In this particular case, the holes were 1/2" deep,...
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    Why wouldn't it be able to?

    Why wouldn't it be able to?
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    Problem drilling small holes

    When I drill on a manual mill, I am able to pull a continuous chip. On the Tormach, I often get these small broken chips. Sometimes these chips cause clogging or rubbing, so the hole turns out...
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    Horizontal band saw with coolant can cut thru...

    Horizontal band saw with coolant can cut thru that with a total cycle time of about 20-30 seconds, even if you stack the pieces.
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    I bet it would work well in a regular r8 collet.

    I bet it would work well in a regular r8 collet.
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    You set the zero point in sprut cam, not alibre.

    You set the zero point in sprut cam, not alibre.
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