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Type: Posts; User: coyotekid

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  1. Replies
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    1,693

    My first choice would be a half-round drill from...

    My first choice would be a half-round drill from these guys:

    Ohio Drill and Tool Company Jobber Half Round Drills Left And Right Hand | Homeworth, OH

    These drills really help to avoid the whole...
  2. How deep is the pocket? How many parts? I...

    How deep is the pocket? How many parts?


    I use this technique a lot with severe length to diameter ratios and have good luck. I did some 2.500" deep pockets in 6061 a couple months back with a...
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    Sorry I'm slow getting back to everyone... I...

    Sorry I'm slow getting back to everyone...

    I slowed things way down as suggested, and I've been having excellent luck using 4000 RPM, 2 IPM, and 0.012" peck. Another big help was adding an extra...
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    I'm using flood coolant aimed carefully--I can't...

    I'm using flood coolant aimed carefully--I can't seem to get finishes nearly as nice cutting Ultem dry. Do you guys cut it dry with an air blast?
  5. Replies
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    Stan, As noted in the first post, I'm going an...

    Stan,

    As noted in the first post, I'm going an average of about .140" deep with these holes. Currently, I'm using a Kyocera circuit board drill. I tried the Harvey circuit board drills, but they...
  6. Replies
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    5,637

    Problems Drilling Ultem--1/64" Holes

    I'm having pure hell drilling some Ultem parts (1000 series, not the glass filled variety).

    I need to drill approximately 300 holes per workpiece, 1/64" dia. I'm currently using solid carbide...
  7. How do you guys deal with the nasty concrete-like...

    How do you guys deal with the nasty concrete-like sludge that settles in the bottom of the 5 gallon bucket? I swear we could spend full time cleaning ours regardless of what material we're tumbling.
  8. Replies
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    26,320

    General rule of thumb: A large pizza can do what...

    General rule of thumb: A large pizza can do what most machinists cannot: feed a family!
  9. I think Sgt. Hulka said it best: "Lighten up,...

    I think Sgt. Hulka said it best: "Lighten up, Francis."
  10. Any problems with getting your skirt caught in...

    Any problems with getting your skirt caught in the door?
  11. Replies
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    I have no idea how you guys can afford to run 80...

    I have no idea how you guys can afford to run 80 psi in pickup tires when running around empty... Between burning the centers out prematurely and buying kidney belts, I'd think a person would go...
  12. Replies
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    I know this is a little OT, but I'd just like to...

    I know this is a little OT, but I'd just like to say that I think your website is well done--clean and tidy but also very appealing to the eye.

    The rocker arms you produce are gorgeous--very...
  13. Is it even legal to take a piss outside in CA?

    Is it even legal to take a piss outside in CA?
  14. Thread: Floer tap?

    by coyotekid
    Replies
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    1,160

    That's what Balax calls their line of form taps. ...

    That's what Balax calls their line of form taps. IMHO, they're great taps for reasonable prices.

    Forming Taps | Balax | Forming Taps, Cutting Taps, Thread Gages
  15. I wasn't insinuating that they used an actor, I...

    I wasn't insinuating that they used an actor, I was talking about the fact that just because one shop owner and another startup company claim that Montana firearms manufacturing is "booming" doesn't...
  16. Replies
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    7,714

    Nice looking parts--good work! If you don't...

    Nice looking parts--good work!

    If you don't mind me asking, how did you fixture the parts to machine the two holes and radii on the outer "ears" of the parts?
  17. Keep in mind that just because it's on NPR, it...

    Keep in mind that just because it's on NPR, it isn't necessarily completely true.;)
  18. Replies
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    It's true that some people have more natural...

    It's true that some people have more natural ability than others, but it's utter bullshit to proclaim that you have to be a "born machinist" to be any good at the profession.

    I'm sure we all know...
  19. Replies
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    First of all, nice work on the design and...

    First of all, nice work on the design and execution!

    Judging from the toolchanger umbrella and the paint, I'd say it's a Haas...

    I'm also curious what you have going on with the movable jaws on...
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    I take it you guys aren't familiar with Zappos: ...

    I take it you guys aren't familiar with Zappos: Shoes, Clothing, and More | Zappos.com

    I think they'd kindly argue that their business model is working just fine.;)
  21. Replies
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    Just as an aside--the houses shown in the video...

    Just as an aside--the houses shown in the video are literally just across the street from the shop where I work here in Bozeman. That clip has created a lot of buzz around here, and I commend the...
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    http://i33.photobucket.com/albums/d61/coyotekid250...

    http://i33.photobucket.com/albums/d61/coyotekid2506/clip_image001.jpg

    This is my coworker swinging 14" + diameter on an 8" chuck using a little Haas TL-1. I was scared, but he knew what he was...
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    17-4PH H900 Flat Bar Source

    As the title says, I can't seem to find H900 17-4 flat bar from any of the suppliers I normally deal with. I only need a few feet of 1" X 1.5".

    I'd like to machine in the H900 condition to avoid...
  24. Thread: Reaming 4140

    by coyotekid
    Replies
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    11,777

    Interesting--I never knew 4140 and its cousins...

    Interesting--I never knew 4140 and its cousins were hard to ream. I have learned that finish cuts with carbide cutters need to be much higher SFM than I'd normally be comfortable with--we're...
  25. Thread: Reaming 4140

    by coyotekid
    Replies
    21
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    11,777

    The machine is a CNC vertical mill, and these are...

    The machine is a CNC vertical mill, and these are new parts, not reworks.

    We were hesitant to bore simply because we need 4.375" of reach, and that seems like a lot of reach even for a carbide...
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