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  • 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. V

    Tips/Techniques 3 Phase motor

    Yes, but you seem to be saying that the motor will draw the same current at no load, as with its maximum load: "If it takes a quarter hp to turn at motor at its 60hz speed, it takes a 1/4 hp period." If I had a better AC ammeter, I would do the experiment with a spare fractional motor and a...
  2. V

    Tips/Techniques 3 Phase motor

    So, would running a motor at half voltage and no load or much lower-than-rated-load still result in much higher current, overheating, etc... ?
  3. V

    Tips/Techniques 3 Phase motor

    Or double the work at the same voltage?
  4. V

    Tips/Techniques 3 Phase motor

    Thanks for the explanations. I did some reading online and the undervoltage and increased current situation is more clear. Most of the explanations seem to assume that the load is constant as the voltage is reduced - basically requiring the same power from the motor while supplying half the...
  5. V

    Tips/Techniques 3 Phase motor

    I don't understand. It's an over-simplication, I know, but can't I think of the windings as resistors? If the voltage is halved, won't the current be halved, not doubled?
  6. V

    SB9 reverse threading

    You need to step up to a 7x14 Sieg with a brushless motor! :)
  7. V

    SB9 reverse threading

    Sounds good; thanks. But....
  8. V

    Tips/Techniques 3 Phase motor

    Scrap yards that sell to the public and cheap used 208 volt 3-phase motors.....I live in a parallel universe without such things. :)
  9. V

    SB9 reverse threading

    I'm just a beginner, so definitely I need more than 'a little' practice! I'd be interested in seeing a video of single point threading into a deep blind hole, with no clearance groove, with the half-nuts always engaged-which is necessary when cutting metric threads with an 'inch' leadscrew...
  10. V

    SB9 reverse threading

    It does make threading next to a shoulder, or in a blind recess a lot less nerve-wracking for me. Especially if the lathe tends to 'coast to a stop' rather than stop when commanded! :) One disadvantage of the much favoured 'big lathes' with the 50# chucks?
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