• Spring 2024 meetup in Calgary - date Saturday, April 20/2024. discussion Please RSVP Here to confirm and get your invitation and the location details. RSVP NOW so organizers can plan to get sufficient food etc. It's Tomorrow Saturday! you can still RSVP until I stop checking my phone tomorrow More info and agenda
  • We are having email/registration problems again. Diagnosis is underway. New users sorry if you are having trouble getting registered. We are exploring different options to get registered. Contact the forum via another member or on facebook if you're stuck. Update -> we think it is fixed. Let us know if not.
  • Spring meet up in Ontario, April 6/2024. NEW LOCATION See Post #31 Discussion AND THE NEW LOCATION

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  1. thestelster

    #7-30 Threading Die

    HELP!! I am hoping that someone might be able to lend me a #7-30 threading die. A little while ago I purchased a Starrett No.995 planer gauge. It's missing a couple of accessories which I would like to make. Starrett uses odd size screws, and my lathe doesn't cut 30tpi. (I plan on making...
  2. thestelster

    Time for some fun

    Collecting Marvel comic books. Especially The Hulk, Fantastic Four, and Spider-Man. Ordering and collecting stamps from the back of those comics. I use to love the horse stamps from Panama.
  3. thestelster

    Tips/Techniques Threading Basics from April 6 Toronto Meet

    I would like to reiterate that the fit of the screw/nut interface is based on how well the flanks of the thread fit, and not on the height of the thread. What I'm trying to say, if you're going to make a screw, and you accidentally turned it a little smaller than the OD required, don't think...
  4. thestelster

    Tips/Techniques Threading Basics from April 6 Toronto Meet

    So, our OD is correct, our root width is correct; lets check our pitch diameter. Sure enough its 0.450", and that's correct. In fact we have just made a UNC 1/2"-13 screw thread, and it's a class 3A tolerance!!
  5. thestelster

    Tips/Techniques Threading Basics from April 6 Toronto Meet

    We need a root width of 0.019", but our insert only has a 0.002" tip width. We have to widen the root section of our thread by app. 0.017". We now advance our compound several thousandths, and we will make another pass while the cross-slide is at our 0.042" depth of cut. Doing this only removes...
  6. thestelster

    Tips/Techniques Threading Basics from April 6 Toronto Meet

    Lets try our nut. Hmm....it won't screw on. Oh yeah, we don't have the proper root width. It's too tight.
  7. thestelster

    Tips/Techniques Threading Basics from April 6 Toronto Meet

    I rotate my compound so it's direction of travel is parallel to the ways. I set it to 0. I turn my stock to 0.500" in diameter, and start cutting my thread with repeated plunge cuts until I get to our required depth of thread of 0.042". Remove burrs.
  8. thestelster

    Tips/Techniques Threading Basics from April 6 Toronto Meet

    I've been quite remiss about finishing up this thread (pun intended). I want to show how I make a Unified thread using a non-topping (partial profile) insert. Remember, a non-topping insert can do a variety of thread pitches. A HSS tool can also be used. I will make a 1/2"-13 UNC thread...
  9. thestelster

    Lathe Chuck Questions

    The Accusize D1 backplates for 4jaw chucks seem to be extremely thick, specifically for that interference issue. You'll have to measure and determine if it will work for you.
  10. thestelster

    Stuart’s big dumb lathe

    Meh...I use both. Dead centers can be more accurate, have less stick-out, less chatter, much easier to true. I will use them for speeds under 250rpm.
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