• 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. C

    Mechanized mayhem in metal ....... Calgary Alberta

    Hello and welcome from Peterborough Ont.
  2. C

    Hello from Toronto.

    Welcome from Peterborough Ont.
  3. C

    Cutting & drilling gr8 bolt

    4140 can indeed be hardened thru. In my trade (metal stamping) it's not that common for thru hardening of 4140 as there are better tool steel choices for thru hardening for die applications whether piercing, blanking or forming. Die set guide pins are 4140 which have a hard case depth and the...
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    Another herring choker - Greetings from New Brunswick!!!

    Hello and welcome from Peterborough Ontario!
  5. C

    Cutting & drilling gr8 bolt

    4140 PH (pre hard) is 28-32 RC (Rockwell C scale). It will work harden if the cutter rubs instead of cuts. Good quality high speed steel will cut it as Robin Hood mentioned using a slower speed and lubrication. 4140 can be made harder, but it will be case hardened. Carbide should have no problem...
  6. C

    Dial indicator

    Maybe try contacting the company. They're still in business. A fifty year old business. https://gem-instrument.com/about-us/
  7. C

    Canadian Gun Nut looking to branch into Machining.

    Welcome from Peterborough On. and another Gun Nutz member!
  8. C

    Hello from Newcastle, Ontario

    Welcome from Peterborough Ont.!
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    Help identify metal

    A strong possibility it's "obtainium". Much more common and easier to source than "unobtainium"!;)
  10. C

    de-magnetizer?

    Do you know anyone with an automatic wet surface grinder? Usually the electric mag chucks have a demagnetize function.
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