• 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. M

    Taper

    How long ago did i say i should stop talking?
  2. M

    Taper

    It has been about 20 years since I was in engineering at university. I don't don't work in the field, but I hope that I haven't forgotten mechanics 101. I'm constantly reminded of my other failings, so maybe my hopes are too optimistic ;) When I say reaction forces, I mean those forces...
  3. M

    Taper

    Let me try again. At least to clarify my own mind. However badly I expressed this before, something keeps bugging me about this one. I am probably talking about effects that are too small to cause the observed problems, and here are a few things that might better belong in the other thread...
  4. M

    Taper

    Haven't I put my foot into it enough for one day?
  5. M

    Advice on quick cable disconnect for DC power supply to a motor

    One tip for twist lock connectors. Before connecting them, twist the cable the opposite way. Introduce enough strain so that it is hard to accidentally turn the other way and disconnect. Usually 1 turn is enough.
  6. M

    Taper

    Sometimes I have a hard time keeping my mouth shut. And this seems like one of those times.
  7. M

    Taper

    I think we are talking across purposes again. Ignoring all the bad stuff that could happen with a severely compromised machine, any cut will be concentric with the spindle axis. Exactly as you say, it has to be. But when you take that part out of the lathe, and measure it you won't get...
  8. M

    Taper

    Wow, there are too many things to reply directly to I don't think we are doing anything more than loudly agreeing, but maybe I understand Patro's problem differently. I think he said that when cutting work between his chuck and the tail stock, he did not get a taper, but then when he cut stock...
  9. M

    Taper

    Yes that's true - the part always spins on the spindle axis, but if the chuck doesn't hold the work concentric to that axis, a taper of some sort is inevitable. That's exactly what happens when you purposefully cut a taper with an offset tailstock etc. A part that has been gripped unevenly by...
  10. M

    Mystery Machine

    It looks like a sewing machine of some kind
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