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Type: Posts; User: RalphStirling

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  1. Replies
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    I'm not worried about minor diameter, as these...

    I'm not worried about minor diameter, as these are feed screws, not fasteners. OD is 13mm.
    I found Tool Flo has 40deg Poly V turning inserts (FLV-3RJ) that would work nicely, but I
    don't want to...
  2. Replies
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    turning sharp threads

    I need to cut some sharp threads (like self-tapping screws for plastics) with a rather fine pitch (1mm or less). I have top notch type holders. I've thought of using Acme 30deg inserts, but the...
  3. Perhaps. These are good Kyocera drills, and the...

    Perhaps. These are good Kyocera drills, and the failures weren't random. Once I got the feed rate and peck worked out I didn't break drills. Likely the Guhring drills would have longer life (with...
  4. I use carbide printed circuit drills, because you...

    I use carbide printed circuit drills, because you can get a box of 50 for $10 on ebay. These are used, resharpened bits, with nice depth collars on them already. I went through about half a box...
  5. While waiting to hear back from Mori engineers...

    While waiting to hear back from Mori engineers about editing the
    ladder logic, I accidentally discovered that #1035, which is a
    variable for custom ladder logic to send values to the NC controller,...
  6. Thanks, Vancbiker. I looked around and found it...

    Thanks, Vancbiker. I looked around and found it advertised anywhere from $200 to $1700. I ordered the $200 copy of version 8. We've got a 5AX-DDRT two axis rotary to integrate with the NVX (also...
  7. I've got the M700/70 PLC Programming Manual (and...

    I've got the M700/70 PLC Programming Manual (and all the other M700/70 manuals I could find) from meau.com. It discusses two ways to edit ladders - the GX software on a PC, and at the machine...
  8. Thanks to both of you. I'd like to learn how to...

    Thanks to both of you. I'd like to learn how to modify the ladder, but
    haven't figured that out yet. Would be a useful capability to have though.

    I need to make a tool change macro anyway, as I...
  9. Current tool number parameter - Mori/Mits

    Anybody know the parameter that stores the current tool
    number for a Mori mill with Mits control? I've been
    scouring the Mori programming manual and Mits programming
    manual, without finding...
  10. Replies
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    Are you looking for info for a single axis...

    Are you looking for info for a single axis DDRT-200 or a two axis?
    We have a 5AX-DDRT-200 and I could go measure the face on the 200mm
    faceplate.
  11. Replies
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    polishing small holes

    We are making a small part in carbon steel with a couple of very small holes
    (1.8mm and 0.45mm), in a CNC lathe. Currently we just drill them with carbide
    circuit board drills. I think I can get...
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    That's exactly what I needed to know! I'll check...

    That's exactly what I needed to know! I'll check that out on my 0i-TC tomorrow.

    This was a very timely thread for me. Thanks to the OP and all the experts commenting...
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    Brent, I don't know about how to tweak the G72...

    Brent,

    I don't know about how to tweak the G72 to lose the wasted moves, but I
    do know that the F block on the G72 sets the feed for the roughing, and the F blocks
    inside the P-Q profile lines...
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    Well, we finally did some test drilling of 1/4"...

    Well, we finally did some test drilling of 1/4" plate glass. Core drilling with a 3.5mm
    diamond drill worked great. Solid drilling a 1.8mm hole just cracked the glass and
    wore the diamond coating...
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    Thanks for the interesting and detailed account,...

    Thanks for the interesting and detailed account, Bill. That is a nice looking little tube cutting
    machine you built. I'll have to study this information some more.

    I think I'm actually going to...
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    I got a quick response back from Accu-glass (link...

    I got a quick response back from Accu-glass (link in post #10 above), and their
    minimum lot charge is $3K - $5K, so I will definitely need to set up our own glass
    cutting process for...
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    I'm liking all this good advice guys. We made...

    I'm liking all this good advice guys. We made our first prototype with the
    help of a chemist using the heat and stretch approach, although it was freehand
    rather than over a mandrel. I'm a little...
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    Because after extensive searching, I have been...

    Because after extensive searching, I have been unable to find 4mm tubing
    with a precision 1.8mm bore. I could undoubtedly get some custom tubing
    made with a sufficiently large order, but would...
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    Grinding and drilling small glass tubes

    I'm needing to produce short glass tubes with a 1.8mm ID and ~4mm OD,
    and 5mm long. I plan to start with 4mm stirring rods (borosilicate). I need
    the ends to be square and flat. I have a diamond...
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    Thanks for all those comments and suggestions. ...

    Thanks for all those comments and suggestions. I'm
    still puzzled about why a horizontal mill would have a
    5C collet where the arbors would normally be. When
    I saw the thing I first thought...
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    What is this Hardinge machine?

    I was asked to look at some machines for a widow this afternoon,
    and this Hardinge machine was not something I'm familiar with.
    It was rather hemmed in by boxes, so I wasn't able to find an...
  22. That was very interesting! Thanks for posting...

    That was very interesting! Thanks for posting the link. Ultra simple,
    and looks pretty reliable. Its not going to do any orienting during
    gripping, but for general material handling it looks...
  23. Washington industrial insurance initiative

    I've got a question for you shop owners in Washington state. I'm reading
    through my voter's booklet about all the initiatives on the ballot, and I'm
    trying to decide about initiative 1082, about...
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    Lanyards aren't a bad idea. Everybody's got to...

    Lanyards aren't a bad idea. Everybody's got to wear a badge anyway, so
    why not hang it from a PM lanyard? That takes care of those of us who
    get "hot heads" real fast with a cap on :) .

    You...
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    I'd be happy to have a PM cap, and would...

    I'd be happy to have a PM cap, and would certainly look up a booth stocking them.

    -- Ralph
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