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  • Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Ontario GTA West area meetup is planned for Saturday April 26th at Greasemonkeys shop in Aylmer Ontario. If you are interested and haven’t signed up yet, click 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. 1

    Help understanding machining tolerance

    Thanks for the link! But what I it still dont understand is if the machining tolerance is for example 0.02mm Then will my part have a possible "growth" or "shrinkage" of 0.02mm/mm or 2% across a critical dimension? 2% difference across the bolt hole mounting locations will put me out almost...
  2. 1

    Help understanding machining tolerance

    In my case this piece will only be bolting up to mate with a different component. Nothing like you describe for a shaft/bore scenario.
  3. 1

    Help understanding machining tolerance

    To start, I'm a hobbiest amateur. I have a component that I have modeled. I'm looking to have this sent off and machined but I'm not sure I understand machining tolerances etc. There are a few things like the 4 peripheral mount holes, central mount holes, center bore that need to be...
  4. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    @John Conroy Big thanks John for your efforts! Also, thanks to the group and those that had a look in on the thread! Was a pleasure meeting you and getting a glimpse of your shop. Turned out nicely! Tip: Being a very strong magnet I was initially a bit worried about how I would clean the...
  5. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    John, I would be grateful, PM sent.
  6. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    The old unit had a freewheel mechanism on the output shaft, the new one has a sprague clutch.
  7. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    @John Conroy The motor is https://www.astroflight.com/3220-astro-brushless-motor-details.html In my application the motor can see about 10,500rpm motor speed. Input into the planetary gear set, gets the output shaft of the planetary reduced to 1/6th which then feeds into a chain drive that...
  8. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    UPDATE: Desired re-machined shaft OD=8.95mm (when I measure an internal casting I made of the spur gear bore with my calipers) Thanks for rotating the image. I'm not looking to disassemble any of the unit. The existing shaft is integral to the larger element. I don't even think it can be...
  9. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    !! I just realized I omitted a critical measure- the new shaft diameter, I'll have to look this up once I'm home. Regarding the precision, it's hard for me to say. I have no machining background so I'm not sure what is considered "high" tolerance. I was thinking in the area of 0.05mm, is that...
  10. 1

    Edmonton- Small lathe/milling work; Advice, insight, recommendation?

    Theres nothing wrong with it, I just need to make use of the shaft to drive a different component which necessitates the modifications.
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