• 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!

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  1. RobinHood

    Lathe Spindle End- Play

    Thanks for chiming in @Mcgyver . Much appreciate your experience with all things machine maintenance / rebuilding. I like your mentor’s thermometer: “hand on the relevant part of the HS”. That is exactly how I do it. TBH, was afraid to mention that method here for fear of not sounding...
  2. RobinHood

    Lathe Spindle End- Play

    I think the reason Standard Modern (and probably many others) switched from tapered bearings at either end to a back-to-back tapered bearing in the front and a “floating” rear bearing is because of temperature related expansion issues with the spindle. If you consider a 2 foot long spindle with...
  3. RobinHood

    Lathe Spindle End- Play

    Yes, using the recommended pre-loading procedure in my SM1340 manual (the same one @thestelster is referring to above), made for a nice, smooth running spindle and better cut-off performance. The bearings did get warmer than I liked and thus I backed off the pre-load by a tiny bit. This kept the...
  4. RobinHood

    Half-Nut Engagement

    I think the biggest advantage of #3 is accuracy. It’s easy enough to advance the spindle by the required number of teeth. Not as fast as on a Hendey though.
  5. RobinHood

    Metal lathe options

    You are communicating just fine. I did see that you were less than enthused with the tool. (they do claim great things in their promotions…).
  6. RobinHood

    Half-Nut Engagement

    Thanks @thestelster for your explanation. Since we are talking multi-start threads, I decided to check the manual for my Colchester Master 2500. My documents are off the internet as my lathe did not come with a manual. I have two versions of the manual, one newer than the other. The one manual...
  7. RobinHood

    Half-Nut Engagement

    I believe that you have interpreted that correctly. I wonder…. If you were to switch pairs (intentionally, or by mistake), would you cut a 2-start thread? Here is why I believe that could be possible… Look at, for eg, 4.5TPI. You can use 1 and 5 OR 3 and 7. Let’s look at 9TPI. You may use 1...
  8. RobinHood

    Metal lathe options

    Not in the reference I made. @VicHobbyGuy has provided a link in his post #155 to what I was referring to. I am surprised that you could not make it work, @VicHobbyGuy. I “cobbled one together” with just clamps and other scraps I had lying around and it did seem to work well. But it was not on...
  9. RobinHood

    Metal lathe options

    Perhaps look into tangential tools. Holders can be shop made and the cutting tool can be carbide blanks cut easily with a diamond wheel and then honed on a lap. The geometry is also easy as it gives all clearance angles by design. Cutting forces are also reduced because of its geometry.
  10. RobinHood

    Finally, a Makita battery fix.

    Well done John. Reminds of working with hydraulic lines or plumbing…. Go from one system via adapters / couplers / intermediaries to another and then back again…
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