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Type: Posts; User: jwatte

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  1. Replies
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    Re: Torque for ER20 and ER32 collets

    Same here!

    The more chatter you have, and the bigger your cutter is, and the thicker the cut is, the more risk there is of pull-out of the holder from the R8 collet.
  2. Re: Tormach 1100 PCNC limit Switch issue experienced.

    Careful about eBay switches, though -- the repeatability of this switch matters, and even though different brands may look the same, they may be different on the inside!

    Anyway, grease sounds...
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    Re: 660 u shars vise on my 1100 s3

    Thread milling is a fantastic invention for those "once in a blue moon" thread forms!
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    Re: Homebrew 4th axis build underway

    Fancy!
    I'd probably make that out of two flat parts and four struts, though ... for practicality.
    But when you're making one, anything goes :-)
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    Re: Homebrew 4th axis build underway

    Feels good when the impediment clears, doesn't it? :-D
    Good for you. I wish you the best, shiniest, parts!
  6. Re: On average, how accurate has your Tormach been?

    I would say +/- .005" is conservative, when I'm "just doing it" I'm usually within 0.003" unless my file is dumb (pushes thin things too hard and getting deflection and such.)
    When I have something...
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    Re: Homebrew 4th axis build underway

    Yeah, I can't think of anything more than that.
    Other than 10 microsteps being ... weird. Most micro-steppable controllers I've used have used powers of two -- 4x, 8x, 16x, 32x, ...
    And the...
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    Re: Homebrew 4th axis build underway

    Do you have a logic analyzer? Or at least an oscilloscope? Hook it up and count the steps, to verify assumptions. (My background shows :-)

    My next suspicion would be the steps-per-rev setting,...
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    Re: Homebrew 4th axis build underway

    That sounds wrong! It should absolutely be linear. There's no way that it would work correctly otherwise.
    So, what's going on is likely that you're losing steps, or your controller is doing poorly...
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    Re: Tormach water resistant key board

    Any USB keyboard will work, so here's an IP65 rated one on Amazon: https://amzn.to/3hn8IVR
    That being said, most "membrane" capacitive keyboards are actually fairly resistant to liquid -- you can...
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    Re: 4th axis stepper "quivering "

    Generally when I've seen the 4th axis die, it's when the coupler breaks because the operator forgot to unlock the table before driving it.
    If the stepper itself doesn't move when you disconnect it,...
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    Re: Surface Plate and strap clamp warnings.

    Sorry to hear that!

    I don't believe in 1. Pressure is pressure, and will deform a surface.

    2 and 3 seem like the normal approaches. Generally, the bottom of the threads will be deformed to...
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    Re: Conversational question

    Looks like it's displaying the spot tool, which is #20? Is that diameter 0.4360?
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    Re: 1100mx operator console wifi

    I'm assuming you have bought the WiFi adapter from Tormach?
    First, wait a little bit, and try again. Sometimes, wifi scanning takes a bit.
    Second, do you see any wifi networks at all?
    Third, are...
  15. Thread: Shank diameter

    by jwatte
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    Re: Shank diameter

    Are you sure that's not a typo? 3/4 would be more reasonable ...
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    Re: Tormach AF50 question

    The gauge seems to be stock Tormach: https://tormach.com/machines/bandsaws.html
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    Re: Serial command set for ATC - Interfacing

    If I'm ever doing this, I'd very likely be doing it using an arm, not a carousel.
    The protocol would then have to emulate the carousel interface. I don't know whether the "io" use goes all the way...
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    Re: Serial command set for ATC - Interfacing

    Yes, that's my code :-)

    It turns out that the protocol is super simple, so you can just go dig it out of the Python script itself, instead of having to "sniff" it.
    (But sniffing is fun, too.)
    ...
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    Re: Serial command set for ATC - Interfacing

    > The USB bridge he is likely to be using will be the FTDI chip,

    FWIW: All Arduinos since the Uno use something like a small USB Atmel chip (Atmega 16u2) for the serial part of the programmer,...
  20. Re: Mint panel (taskbar) missing on fresh install PP2.5.1

    You can just `sudo -i bash` as `operator`

    Have an actual-login for the root account is generally not a best practice.
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    Re: UPS for a Series 3 1100

    Yes, you're right; you need the X version: https://amzn.to/3ejKGJ8
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    Re: UPS for a Series 3 1100

    For a 2 HP spindle, you'll want something like a 3000 VA UPS unit. Perhaps something like this: https://amzn.to/3ej7p8a

    Exactly how the VFD and computer will take to the not-really-sinewave output...
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    Re: UPS for a Series 3 1100

    You can get battery UPS-es for sufficient capacity, although you'd have to pay a few grand. Also, it wouldn't run for many minutes if your mill is running full power. It might be enough to safely...
  24. Thread: Probe

    by jwatte
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    Re: Probe

    I have one of Cliff's probes, and I like it. It took less than 2 weeks from NZ to California -- I did pay for the "courier" shipping at $45 at the time. That was before the tariff wars and lockdowns...
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    Re: 440....is it worthy? or 770?

    Your feed rates should not be too slow, that will cause rubbing and other bad stuff.
    Instead, the main thing you back off on is depth of cut / width of cut.
    The 440 can mill any material, pretty...
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    Re: Improve Surface Finish

    I am a firm believer of 3 flutes for aluminum. That's what they're for! I used to use 2-flute, but 3 flute just allows me to feed 50% faster.
    I've never had luck with 4 flute; they always clog,...
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    Re: 440....is it worthy? or 770?

    Yes, the motor on the 440 is strong enough for that cut, at least if you use the lower-RPM belt setting.
    I regularly full-slot 303 (which, admittedly, is easy, as far as stainless goes.) with quater...
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    Re: Improve Surface Finish

    Tab workhodling is not great.
    I would recommend getting stock that is 3.5mm thicker than you need for the part. Then hold it at 1/8" in the bottom, and profile it out, without tabs. Cut to slightly...
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    Re: Machine placement

    I used a 1100 for a long time, but that opportunity went away, and I ended up getting a 440 in my garage. The reason I got the 440 is because I couldn't fit anything bigger. Even the 440 is a...
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    Re: Set parameters at runtime?

    Here's my "clean up the stock on the left" program:

    I probe the left yon bottom corner of the stock as 0x0x0 and set the "width" to the Y dimension of stock, "height" to the Z dimension, and this...
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