Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Page 5 of 5 FirstFirst 1 2 3 4 5
Results 41 to 44 of 44

Thread: 12 x 37 Lathe Tailstock Clamp Improvement

  1. #41
    Supporting Member Paul Jones's Avatar
    Join Date
    May 2014
    Location
    Del Mar, California
    Posts
    1,231
    Thanks
    5,771
    Thanked 1,383 Times in 652 Posts

    Paul Jones's Tools
    Y-geo,

    I know what mean about getting magnet polarity in the correct N-S pointing direction. I have similar Hall Effect tachometers on two of my 12" and 7" swing lathes (see Homemade Metal Lathe Digital Tachometer - HomemadeTools.net and http://www.homemadetools.net/forum/m...3147#post15859 .

    The eBay sellers luckily provided the wiring schematics at the auction website pages so no need for a translation. Also Randy Richard in the Shop (see his YouTube channel ( https://www.youtube.com/channel/UCme...AeH21q-xcNwdfw ) warned about getting magnet N-S orientation set correctly before gluing in place. Otherwise the Hall Effect sensors won't work at all.

    Thanks,

    Paul Jones

    173 Best Homemade Tools eBook
    Last edited by Paul Jones; Aug 27, 2017 at 11:43 AM.

  2. The Following User Says Thank You to Paul Jones For This Useful Post:

    Y-geo (Aug 27, 2017)

  3. #42
    Supporting Member Y-geo's Avatar
    Join Date
    Aug 2017
    Location
    west london
    Posts
    32
    Thanks
    52
    Thanked 22 Times in 13 Posts

    Y-geo's Tools
    Paul,
    both things I considered , the mounting on the gear box guard worried me about any hamfistedness on my part wrecking it during a gear change.

    The biggest contributing factors of my choice was the location of the speed controller and the double switch. I would have liked the tacho display at the top front but the speed box is quite a lump (found a spare on ebay cheap ) so may look to strip it out of its OEM box and modify it to put the speed pot on top BUT have the rest of the gubbins else where ie bottom some place with good fan air movement over it. Who knows what i will get up to .......................

    Thank you for the links duly filed as i may just alter the placement of the magnet as I would like to put a spider in place for my rifle barrel work at some point.
    S & F
    Y-Geo

  4. The Following User Says Thank You to Y-geo For This Useful Post:

    Paul Jones (Aug 28, 2017)

  5. #43
    Supporting Member Paul Jones's Avatar
    Join Date
    May 2014
    Location
    Del Mar, California
    Posts
    1,231
    Thanks
    5,771
    Thanked 1,383 Times in 652 Posts

    Paul Jones's Tools
    Y-geo,

    Good information and thanks.

    I am about 90% complete on completing a lathe spider project for mounting at the rear of the 12" swing lathe headstock spindle. The spider will be a permanent installation and it does include a 6 mm cross drilled hole for an even smaller neodymium magnet to work with the Hall Effect tachometer sensor. I just have to make the four brass screws with knurled and cross-drilled heads and the project will be finished. I don't do riffle barrel work but work a lot with 3/8" and 1/2" diameter 303 stainless steel rods and the spider plus and external rest support keeps the rods from dangerously whipping around at high RPMs.

    The reason I put the tachometer on the 12" swing lathe was because I had intended to use a variable frequency drive (VFD) to power the lathe but never got around to doing this. The geared head lathe selection of twelve speeds from 70 to 1220 RPM is more than enough and the VFD would be nice but not necessary. However, I wish I had a 3 HP instead of a 1.5 HP motor for making deeper cuts with carbide inserts.

  6. The Following User Says Thank You to Paul Jones For This Useful Post:

    Y-geo (Aug 28, 2017)

  7. #44
    Supporting Member Y-geo's Avatar
    Join Date
    Aug 2017
    Location
    west london
    Posts
    32
    Thanks
    52
    Thanked 22 Times in 13 Posts

    Y-geo's Tools
    Paul,
    i had the brass screws from another Job so, that is a start :-) although to be fair they are slot heads so your knurled bolts seems like it could well happen Lolz

    i am off tomorrow (today is a holiday ) to a friends house to use his lathe/mill to get the kinks out of a very rough base casting on my newly modded drill press and to make up some alloy T nuts for it.

    My whinging about high pressure grease supply here in the UK just got me a message from a Bel Ray supplier in the UK who can supply the red termalene grease i used to use when i was working stateside and in the west indies . So thank to the forum I can get some and i will a write up / follow up when i do my headstock tear down with comments for those of us stuck across the pond

    thank you guys, & Paul good luck with the quest for a 3HP motor.......................



    173 Best Homemade Tools eBook
    S & F
    Y-Geo

  8. The Following User Says Thank You to Y-geo For This Useful Post:

    Paul Jones (Aug 29, 2017)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •