• 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 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. M

    making "spherical" surfaces with a boring head (?)

    well in my case it's because the drivetrain of my lathe has been removed for repair haha. but maybe it's a good way of generating large radii which might be more difficult on a lathe with a ball turner kinda deal OK so I think this is about it: I was gonna re-write it out and whatever but...
  2. M

    making "spherical" surfaces with a boring head (?)

    ok so had a bit of a think and yell with the bossman at work, farted around in cad a bit and then consulted the sacred text (Tom Lipton's "metalworking: doing it better") and with some formulae and diagrams in front of me things are making more sense. Too bad I couldn't find this online earlier...
  3. M

    Pregraph Tool and Cutter Grinder, Victoria, $457

    oh wild, my apologies for assuming they were all the same! that looks like the differential socket head screw mine had for the taper hub but idk??? here's a few pictures of mine: I actually had no idea mine had this taper hub until someone else pointed it out; I had just been changing...
  4. M

    making "spherical" surfaces with a boring head (?)

    so I'm trying to repair the Kopp variator in my lathe. basically it's a continuously variable transmission using two drive cones with balls in between them. changing the axis of rotation of the balls changes the ratio between the two drive cones. the variator has worked OK for the whole time...
  5. M

    Pregraph Tool and Cutter Grinder, Victoria, $457

    my S0 from 1967 has just a straight hub like this
  6. M

    Pregraph Tool and Cutter Grinder, Victoria, $457

    I had this same model. it's a nicer old clone, pretty well featured and not super cheap. for example the knob handles are the type with the spring-loaded spline in them so you can pull them out and reorient the handle. it takes the deckel 20mm collets (U2 or 355e, 20mm shank with s20x2 buttress...
  7. M

    Does Anyone Still Make The Real Swiss or German Multifix Tool Post? (not an offshore clone)

    I find the indexing feature of the multifix kinda useless... it's kind of a work around for not having enough holders for a dedicated tool. IMO it's nicer to have more holders and dedicated tools for each op, and it's not so expensive/hard to buy/make dovetail type holders typically. that said...
  8. M

    Pregraph Tool and Cutter Grinder, Victoria, $457

    I had one of those; sold it when I got a real deal Deckel S0 and honestly features-wise the pregraph was better/ more modern (taper hub wheel hub, more graduations engraved...) in my shop it's an invaluable tool for making weird shaped cutters (custom width slot mills, dovetail cutters, radius...
  9. M

    Pinko Lathe Edmonton (St. Albert) ABGovsurplus

    oh wow, I see it now that you mention it. a Tida TD-5AA was the lathe I learned on... I think it was the worst machine tool I've ever used. i suppose some of this was due to the lathe being abused and not set up right but overall I thought it was pretty cheesy. we did the thing you're not...
  10. M

    Pinko Lathe Edmonton (St. Albert) ABGovsurplus

    I almost can't believe that's an actual machine tool company name
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