• 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. Chris Cramer

    Blade smithing

    I contacted praxair which is Linde now, and the cost for only 4.5 L of LN is $180! I'm not sure how long only 4.5L would last, and if it be worth the cost of $180.
  2. Chris Cramer

    Power feed

    Is every other axis of the milling machine still controlled by hand? If every handle to rotate the lead screws were removed, and each lead screw was attached to a stepper or servo motor, then I'm thinking it wouldn't be too difficult to turn one into a CNC machine. I'm not sure how many...
  3. Chris Cramer

    Induction forges

    The induction forge has gone fairly well. I finished wiring a fixed multimeter ment to keep track of a device's amperage, voltage, power, and energy. The heater still works as well as it did when I first tested it, but the potentiometer I installed that is normally used for dc motor control did...
  4. Chris Cramer

    fume extractors

    I finished that fume extractor quite a while ago, and it works well for extracting fumes; but on the other hand, I am trying to build a well working downdraft table where I do my frequent grinding with my belt grinder and angle grinder. The fume extractor does have enough air flow to capture...
  5. Chris Cramer

    fume extractors

    . I finished putting together this extractor with 2 inline fans connected to some flexible solid aluminum duct welded to a mechanical arm that I designed. The arm rotates on a steel plate mounted to the wall, and holds its position on both joints with a series of strong springs.
  6. Chris Cramer

    Blade smithing

    I did some more research on cryogenic treatment of alloy steels in LN vs dry ice, and it turned out that the difference in hardness between steel cryo treated in LN vs dry ice would make it worth purchasing a dewar for LN. I got a 3L dewar from Vevor for 200 dollars, but it comes empty, where...
  7. Chris Cramer

    Blade smithing

    I've now furnished the bowie knife that I began working on before my meat carving knife. This blade was also made out of CPM magnacut, for the performance as a hunting knife or survival knife. The edge is extremely sharp, and slices through wood just like a swiss made carving knife. The balanced...
  8. Chris Cramer

    Induction forges

    I just received a 48v 50 amp power supply for my 3000W induction heater, and tested it out for the first time. This power supply delivers enough current to allow the induction heater to heat thicker metal stock. You can tell that it is drawing more current as you run thicker stock through the...
  9. Chris Cramer

    Induction forges

    https://www.amazon.ca/gp/product/B07ZTMD65Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 I just received this induction heater which requires even more power than the other. It barely heated a 3/8" steel rod with my 30v 10a power supply, but I know it works, I just need more power input.
  10. Chris Cramer

    Induction forges

    I tested the induction heater, and it does work, but I don't know if it performs as well as it should have. I used a 30v 10a power supply which heated a 3/16" steel rod pretty slowly. The water pump circulates water from a bowl of water through the copper tube and back to the bowl which works...
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