• 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. John Conroy

    First lathe crash

    Your're not the only one to suffer this kind of mishap. This picture was posted on another forum, it happened when he was unpacking his brand new Eisen 1440EV lathe. Makes me want to puke just looking at it.
  2. John Conroy

    King 1440 and Craftex Threading

    Thanks very much for doing that, it is perfect for my lathe. Mine has a different arrangement for leadscrew/feedrod controls and it took me quite a while to get used to it as it is not intuitive. For some reason only numbers 1,2,3 and 6 are used for metric threading, 4,5,7 and 8 must feel left...
  3. John Conroy

    Tips/Techniques threading issues on CX 706

    No I'm referring to the cx706. I'm familiar with it as a friend has one.
  4. John Conroy

    Tips/Techniques threading issues on CX 706

    I think that model needs lots of teeth on the dial so it can pass over the keyway. Threading and carriage feed are done by the same shaft. Maybe it has a gear for a 3mm pitch lead screw instead of the 8tpi one.
  5. John Conroy

    King 1440 and Craftex Threading

    There's tons of room for different size gears and a large range of adjustment.
  6. John Conroy

    King 1440 and Craftex Threading

    I taxed my brain and came to the conclusion that you are exactly right Rudy, thank you for doing the math for me. I was able to reverse engineer your conclusion and learned how to come to the same conclusion. It just took me a lot longer! I have done some research about gear profiles and found...
  7. John Conroy

    King 1440 and Craftex Threading

    I spent a little time researching metric threading on lathes and learned a few things. The only way I can remember stuff is if I write it down so here it is. The most common lead screw is 8 TPI, a pitch of 0.125". That's 3.175 mm, not a convenient number from which to derive the standard metric...
  8. John Conroy

    What material should Camlock cams and stop bolts be made from?

    Wouldn't you like to find the guy who did that and feed him to the lions?
  9. John Conroy

    King 1440 and Craftex Threading

    The manual for my old CT1440G has thread charts for both the 8tpi lead screw and the 3mm one. They call the lead screw a screw leading stick.
  10. John Conroy

    King 1440 and Craftex Threading

    I noticed that they never calculated a feed chart for the metric threading change gear combinations for any of the lathes. The chart in the manual for my lathe doesn't include cross feed specs, only carriage feed. The placard on the front of the machine includes both and it similar to your...
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