Results 1 to 6 of 6
  1. #1
    Join Date
    Apr 2020
    Location
    Ettalong Beach NSW
    Age
    62
    Posts
    72

    Default Installing qctp,need advice please

    The thread on the new qctp mounting bolt is different to the original on my Sheraton Conquest 10. I figure the simplest way is to modify the thread on the new bolt to fit the original base plate. The bolt shaft is a larger diameter so I think its ok to modify.
    Any reasons why this is a bad idea?
    And if its a good idea, can anyone from Central Coast NSW point me toward a machinist who will do such a small job?
    And yes, my lathe does cut screws, but I haven't graduated screw cutting school and I don't want to risk a mistake on this vital part.

  2. #2
    Join Date
    Apr 2020
    Location
    Ettalong Beach NSW
    Age
    62
    Posts
    72

  3. #3
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default

    Quote Originally Posted by Vicval01 View Post
    Any reasons why this is a bad idea?
    Not that I can think of. I had to make a new bolt for the QCTP on my Hercus 260. My metric lathe wouldn’t cut the ½” thread to match the topslide, so I used a die.
    Chris

  4. #4
    Join Date
    Apr 2020
    Location
    Ettalong Beach NSW
    Age
    62
    Posts
    72

    Default

    Great, thanks for that. Now, to find a machinist...

  5. #5
    Join Date
    Jul 2011
    Location
    Berowra Waters
    Posts
    149

    Default

    Quote Originally Posted by Vicval01 View Post
    Great, thanks for that. Now, to find a machinist...
    I know one, PM me if you like.

  6. #6
    Join Date
    Apr 2020
    Location
    Ettalong Beach NSW
    Age
    62
    Posts
    72

    Default

    Thanks for all your great support. In the end I forked out for a tap and die set and modified the thread.20210807_142148.jpg

Similar Threads

  1. Advice needed, HH style QCTP
    By caskwarrior in forum METALWORK GENERAL
    Replies: 8
    Last Post: 30th Oct 2016, 08:52 AM
  2. Help Installing lathe spindle
    By welder in forum METALWORK GENERAL
    Replies: 11
    Last Post: 13th Jul 2015, 06:21 AM
  3. Installing my 260
    By andrew9 in forum THE HERCUS AREA
    Replies: 20
    Last Post: 23rd Jul 2012, 03:49 PM
  4. Installing a hoist
    By snowyskiesau in forum METALWORK GENERAL
    Replies: 81
    Last Post: 26th Feb 2012, 02:35 PM

Posting Permissions

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