Page 4 of 5 FirstFirst ... 2345 LastLast
  1. #31
    I think I got mine from Chronos at the time, but can't be entirely sure.
    General criteria I went for was it was wet, and cooled things!

  2. #32
    Quote Originally Posted by m_c View Post
    I think I got mine from Chronos at the time, but can't be entirely sure.
    General criteria I went for was it was wet, and cooled things!
    :rofl: Probably this one then:

    http://www.chronos.ltd.uk/acatalog/5...luble-Oil.html

  3. #33
    Jonathan,
    I hpe your are havng more fun with your new toy than I am with mine. My "new" Blomqvist is cutting at a taper. I spent a while last night setting up the tool holder ang cross slide with a dti guage so that it is at 90 degress to the chuck and it is still cutting a bit off. I have bored out a hole with the apron stationary while using the cross slide compound rest. Still not sure why it is tapering. It could be that the headstock is slightly off centre. I will need to check this later.

    Ian

  4. #34
    Quote Originally Posted by Web Goblin View Post
    Jonathan,
    I hpe your are havng more fun with your new toy than I am with mine.
    I've not actually made anything wit it yet - I'm trying to think of something!

    Quote Originally Posted by Web Goblin View Post
    My "new" Blomqvist is cutting at a taper. I spent a while last night setting up the tool holder ang cross slide with a dti ... It could be that the headstock is slightly off centre.
    When cutting parallel I always use the apron handle for the final pass. If you use the apron does it cut parallel, if not it must be the headstock.

    Where are you putting the dti to test the top slide since the side of it might not actually be exactly parallel to the direction of motion? How far off is it? If it's only a very slight taper using the apron handle it could be that the bed is twisted.

    I've not checked the headstock on mine yet.

  5. #35
    Quote Originally Posted by Jonathan View Post
    When cutting parallel I always use the apron handle for the final pass. If you use the apron does it cut parallel, if not it must be the headstock.

    Where are you putting the dti to test the top slide since the side of it might not actually be exactly parallel to the direction of motion? How far off is it? If it's only a very slight taper using the apron handle it could be that the bed is twisted.

    I've not checked the headstock on mine yet.

    The compound slide should only be used FOR cutting tapers, everything else you should use the saddle/apron

    The only way to test is with a test bar that fits in the spindle taper and use a dti any other method you will be bringing other factors into the equation by making test cuts "Tool Deflection, Materiel Deflection ETC"

    The only part that needs to run true is the cross slide to the spindle axis.

    Phil

  6. The Following User Says Thank You to M250cnc For This Useful Post:


  7. #36
    Quote Originally Posted by M250cnc View Post
    The only way to test is with a test bar that fits in the spindle taper and use a dti any other method you will be bringing other factors into the equation by making test cuts "Tool Deflection, Materiel Deflection ETC"
    That's interesting, and seems logical, however in the manual for my lathe it says to test it by cutting.
    Last edited by Jonathan; 24-04-2011 at 11:38 AM. Reason: Typo

  8. #37
    First useful parts I've made on the lathe:

    Click image for larger version. 

Name:	DSC07278 (Medium).JPG 
Views:	363 
Size:	158.8 KB 
ID:	3976

    Socket spanner for the toolpost, I made the socket ages ago with the rotary table on milling machine before I converted it to CNC. It happened to fit the toolpost nut

    Second is two small pins for my rc car, 2.8mm diameter - 45mm long. I have not got an MT3-2 adapter so can't use my centres yet so had to do it unsupported. It worked fine though. One of them is stainless steel by accident! They hold the wishbones on - the original is just a simple bar that keeps falling out.

  9. #38
    Jonathan,
    if you are after some morse taper sleeves I have some if you are interested.

    Ian

  10. I found the cheapest BD68 slideways oil on Radionics

    http://radionics.rs-online.com/web/s...=bd+68&x=0&y=0

  11. #40
    Phil,
    thanks for the info. I have tested the lathe again boring a 16mm hole with a boring bar again. I set up the boring bar in the holder by eye and the tool holder by eye at right angles to the bed, the tool holder does not index.
    Tried boring some brass bar and it came out good. Vernier was a good fit in both ends of the hole.

    Ian

Page 4 of 5 FirstFirst ... 2345 LastLast

Similar Threads

  1. Setting the zero point on a CNC lathe
    By Robin2 in forum Lathes, Lathe Rebuilding & Conversions
    Replies: 7
    Last Post: 20-10-2013, 10:37 PM
  2. Colchester Chipmaster Lathe HELP !!!
    By snookaman in forum Lathes, Lathe Rebuilding & Conversions
    Replies: 2
    Last Post: 28-08-2013, 10:23 AM
  3. colchester student 1800 help with knowin what my lathe is capable of
    By whensparksfly in forum Milling Machines, Builds & Conversions
    Replies: 2
    Last Post: 26-01-2012, 03:30 PM
  4. colchester student 1800 help with knowin what my lathe is capable of
    By whensparksfly in forum Milling Machines, Builds & Conversions
    Replies: 1
    Last Post: 26-01-2012, 01:26 PM
  5. Colchester Student 1800 Square Head Lathe - HELP !
    By cncroger in forum Milling Machines, Builds & Conversions
    Replies: 3
    Last Post: 03-02-2008, 08:28 PM

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
  •