Free 173 Best Homemade Tools eBook:  

User Tag List

Page 2 of 2 FirstFirst 1 2
Results 11 to 15 of 15

Thread: Four Bolts Compound Clamp

  1. #11
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    2,202
    Thanks
    3,811
    Thanked 1,694 Times in 1,029 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Toolmaker51's Tools
    Sometimes I question whether to use QCTP or 4-way. IMO decision lies on combined operations a part requires; our work lathes are not equipped to exchange. My own machine I can rig accordingly. The work machines shortfall; turrets [4-way] index 8 positions but they're tied to compound, I regard this fitting out inadequate.
    Sufficient incidents prove whether HSS or insert tooling is used, you get overhang/ interference/ poor tool clamping during chamfering, form tools, 45 necking, and other finishing sequences.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  2. The Following User Says Thank You to Toolmaker51 For This Useful Post:

    olderdan (11-15-2019)

  3. #12
    Supporting Member LMMasterMariner's Avatar
    Join Date
    Jan 2016
    Location
    pacific coast south america
    Posts
    202
    Thanks
    514
    Thanked 395 Times in 110 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    LMMasterMariner's Tools
    Removing compound slide is an excellent idea for extra rigidity, but in this case 4 bolts compound clamp is not required at all. I also don't use compound slide too often and installation of big (even 120 x 120mm) 4 way tool post on additional steel block is one excellent idea to consider. Thanks for that.

    Cheers
    LMMasterMariner

  4. The Following User Says Thank You to LMMasterMariner For This Useful Post:

    olderdan (11-15-2019)

  5. #13
    Supporting Member olderdan's Avatar
    Join Date
    Jun 2016
    Location
    Devon UK
    Posts
    572
    Thanks
    1,126
    Thanked 1,056 Times in 349 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    olderdan's Tools
    Quote Originally Posted by LMMasterMariner View Post
    Removing compound slide is an excellent idea for extra rigidity, but in this case 4 bolts compound clamp is not required at all. I also don't use compound slide too often and installation of big (even 120 x 120mm) 4 way tool post on additional steel block is one excellent idea to consider. Thanks for that.

    Cheers
    LMMasterMariner
    I can confirm the benefits of removing the top slide out of the equation for the smaller lathe, a micrometer bed stop will give a precise depth function. Most of us will push our machinery beyond its comfort zone at times and this mod does help with rigidity and finish.
    Top slide alternative
    I did this some years ago and is now the way I turn most of my work.

  6. #14
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,091
    Thanks
    480
    Thanked 1,042 Times in 959 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)


    Thanks tonyfoale! We've added your Fixed Tool Post to our Tool Holders category,
    as well as to your builder page: tonyfoale's Homemade Tools. Your receipt:




  7. #15

    Join Date
    Jan 2019
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by tonyfoale View Post
    My similar effort uses 3 bolts but I went for extra rigidity by eliminating the compound slide. It only takes a minute to revert back whenever (seldom) I need the slide.
    I also added a rear tool post rigidly attached with a 4 way tool holder permanently loaded with a turning tool, cutoff tool and drill chuck with a spot drill.

    Attachment 32038 Attachment 32039 Click images for full size.
    i like the idea of spot drill being available, Tony. in the absence of a capstan(?), i remove the drill when not in use. minimises risk of nusiance injuries. what are your thoughts as to the quick way to centre the drill when its not in the tailstock please? i dont have digital readout.
    thanks
    David


    Post your reply!
    Join 42,532 of us and get 200+ tool plans, tool eBooks, build guides, and much more.



    eBooks for Supporters

Thread Information

Users Browsing this Thread

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

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
  •