• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
  • Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Calgary Area Meetup is set for Saturday July 12th at 10am. The signup thread is here! Arbutus has also explored interest in a Fraser Valley meetup but it seems members either missed his thread or had other plans. Let him know if you are interested in a meetup later in the year by posting here! Slowpoke is trying to pull together an Ottawa area meetup later this summer. No date has been selected yet, so let him know if you are interested here! We are not aware of any other meetups being planned this year. If you are interested in doing something in your area, let everyone know and make it happen! Meetups are a great way to make new machining friends and get hands on help in your area. Don’t be shy, sign up and come, or plan your own meetup!

Search results

  1. C

    Bought a diamond in the rough mill probly

    If you end up landing a bunch of whatever holders for cheap, then you can likely make most anything work. Obviously you don’t need the tool changer groove, but it won’t hurt anything either (there are differences in the keys too - but that can be worked out. Right now I swap between SK40 and...
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    Bought a diamond in the rough mill probly

    Cat40, BT40, NT40 (which I think is the same as NMTB40), SK40 are all #40 taper - they use different arrangements for pulling the tool in. The Cat40 and BT40 use a swappable pull stud (selected per the spindle’s retaining device) - the back of the holder is shorter and threaded for the pull...
  3. C

    Bought a diamond in the rough mill probly

    Cat40? I think you may be looking for NMTB40. Best to double check. You asked what collet size to commit to? Mind the sales adds and usual used tools sources. I suggest it does not really matter, because after a while you will have several sizes. I think I have a set of the same system...
  4. C

    Threading tools

    I’m with Mower, about 95% of my external threading is single point. I like going full depth to the end and then ramping out (I’m qwerky, it is my own little signature thing - I like the look) - can’t get that with a die. With single point you can fit the thread if you want, and I get a nice...
  5. C

    Left hand thread

    I also ran into a 1/2”-12 on a milling machine stub arbor. Another way to measure thread pitch in a hole is with a bent piece of wire (similar to an o-ring pick): insert wire, with the tip in a thread root, mark depth, bump the wire out while counting a number of threads, then mark/measure the...
  6. C

    Bought a standard modern 11" series 2000

    Congrats, that is a very useful size, straight forward machine. I ended up doing a complete tear down of everything except the main gear box, it is a pretty simple machine to work on. Most parts are OEM available, but at eye popping prices. The manual specifies straight 30 weight in the main...
  7. C

    Deckel FP 3 L

    On my Maho, I don’t have a huge selection of spindle tooling (U2 collets & #40 collets) and on such a small machine head room is tight - so options are sometimes needed. I’m using some of my BT40 tooling, with a homemade “Deckeldapter”, so keeping the same S20x2 drawbar (fair amount of BT40...
  8. C

    Are all scrolls created equal?

    Rauce, what you say is probably true, except doing a nice job of getting through the case hardening (you’ll need to cut a male or female key in the long and cross direction) is no minor task. I have made 2 sets of the master jaws, and 3 sets of soft top jaws - it is not particularly difficult...
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    Are all scrolls created equal?

    On my 11” SM lathe, I have what is probably the original 6” Pratt (PB) with only the regular jaws (SN the same as the chuck body). I was able to find a set of the outside grippers (not sure what to call them), from another 6” PB - they fit great, I have not checked the run out (the current #1...
  10. C

    Are all scrolls created equal?

    Hi Justa, how determined are you? What resources do you have access to? I made two sets for a 12” 3J. Harold Hall has a good write up for cutting the back side scroll, using manual machines - the side grooves, and other details are pretty intuitive. I did those back side scroll teeth on a...
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