• 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. John Conroy

    Quick change insert height

    I have a few 250-202XL tool holders that will accept 3/4" tools instead of the normal 250-202 holders that accept 5/8" tools. The tool slot is .0625" closer to the bottom of the holder. They are the same price so if you are going to buy more tool holders in the future you should look for the XL...
  2. John Conroy

    Lathe repowering

    FWIW the Teco 510 vfd's that I used on my lathe and mill have 2 different program selections for braking parameters. Setting #14 gives "rapid stop" and setting 15 gives "base block". The rapid stop decel time is adjustable. Base block is another term for coast to stop, no dynamic braking. I use...
  3. John Conroy

    Calgary & area meet up Spring 2024.

    Thanks, I tried Google but only came up with Human Mammary Epithelial Cells and knew that wasn't right. lol
  4. John Conroy

    Tramming KBC mill question.

    Is it possible the .005" discrepancy is caused by knee/table sag and not by head nod?
  5. John Conroy

    Tramming KBC mill question.

    I didn't look at the picture showing the type of mill it is. I assumed it was an RF45 type square column machine. The round 3 bolt flange on the machine in question has to remain movable to rotate the head/ram assembly side to side so epoxy is not a viable solution. I don't see how shimming...
  6. John Conroy

    Calgary & area meet up Spring 2024.

    What is HMEC?
  7. John Conroy

    Tramming KBC mill question.

    As others have mentioned, using shims around bolt hole on cast iron is a recipe for a cracked casting. I think epoxy is the best solution. Check out Stefan Gottswinter,s video.
  8. John Conroy

    measure over pin method for gears

    Nice! It does seem counter intuitive to only use 2 pins on an odd tooth gear but even the Machinist Handbook shows that to be the correct method. Do you have a project in the works that will involve gear making Peter?
  9. John Conroy

    measure over pin method for gears

    You could cut your test gear from delrin or aluminum if you have any scrap pieces around
  10. John Conroy

    measure over pin method for gears

    54 - 69.9 78 - 99.9 63 - 81.1 56 - 72.4 57 - 73.6 When I do the arithmetic using the DP formula all 5 of those gears work out to between 20.32 and 20.35. Using the Module formula they all work out to between 1.247 and 1.249. So with the numbers for those 5 gears it looks like Module 1.25 is...
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