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  1. Replies
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    Sad story.... Regarding Y axis, if the...

    Sad story....

    Regarding Y axis, if the configuration is anything like the older machines (which I think it is) then the screw is fixed at the back of the head with a taper pin and the nut is the...
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    Hi there, as many have reported here (and I am...

    Hi there,

    as many have reported here (and I am one of them), the round T slots in the vertical head, at least the long reach component suffer when 'over enthusiastic' users tighten the 4 bolts...
  3. Hey Ken, thanks for the tips. your comment on...

    Hey Ken, thanks for the tips.

    your comment on pressure from the tailstock is really interesting. This might be the root cause of chatter induced by the follower rest, tailstock pushing the stock...
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    You mean Ross that grease will be diluted with...

    You mean Ross that grease will be diluted with oil and run away, but oil that managed to get passed the seal will not be enough for effective lubrication. Makes sense, hadn't heard about this...
  5. Hi to all, thanks for the replies! Thanks...

    Hi to all, thanks for the replies!



    Thanks for the tips,
    I did, indeed, finish with a CCGT insert, highly positive rake, aluminium grade. This was the way to achieve my target OD. No chatter...
  6. threading pre-hard on the lathe (having a hard time...)

    Dear PM,

    please advise on this. I had to make 4 long screws with 250 mm of 19 mm OD shoulder and 230 mm of M16 thread. For strength, we opted to use a prehardened steel, specifically Impax Supreme...
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    Don't know what to answer to that.... Just keep...

    Don't know what to answer to that.... Just keep on enjoying...! (and sharing whenever possible :) )
  8. Replies
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    Right....you don't need to have the form cutter...

    Right....you don't need to have the form cutter having the full width of the spline land, will save you some chatter. You just need the correct radius. Then you can move around with the dividing...
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    I think the key sentence is, as Ross already...

    I think the key sentence is, as Ross already mentioned, " A formed spline milling cutter, if available, can be used for this operation."
  10. Replies
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    Gotta love this forum, right? :) Thanks for...

    Gotta love this forum, right? :)

    Thanks for the tips on machining the spline Ross. I haven't ever really been involved with grinding, so accurate form dressing the stone doesn't come natural to...
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    Well done Dennis, you must be happy with the...

    Well done Dennis, you must be happy with the progress I guess!

    Do you have an idea what caused the shaft to be so stuck? Did you see something that would be an obvious answer to that?

    Regarding...
  12. Thread: For Sale ! ! !

    by thanvg
    Replies
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    233,163

    Sticky: For sale is this monster of a vise: ...

    For sale is this monster of a vise:

    https://www.practicalmachinist.com/vb/attachment.php?attachmentid=265707&d=1569304310

    (the large one only is for sale, the small one is your usual 110mm...
  13. Thread: Wanted ! ! !

    by thanvg
    Replies
    389
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    119,268

    Sticky: You mean of course dividing head, overarm, a...

    You mean of course dividing head, overarm, a chuck, the faceplate and a couple of backplates, right? :)

    Hold on to the chucks and the tailstock Bruce, not so easy to find!!
  14. totally off topic.... I know of 'a guy' who did...

    totally off topic....
    I know of 'a guy' who did something similar :wall: :o, checked the oil passages on a HLV-H with compressed air, they didn't let it pass because there are some valves there, so...
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    I have a spare holder for the X axis of the 500...

    I have a spare holder for the X axis of the 500 mm FP2
  16. Much better than most for sure! Either a low...

    Much better than most for sure! Either a low mileage machine or a rebuilt one! Well done on this find!
  17. Replies
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    Hey Dennis, hold on tight... No suggestions...

    Hey Dennis, hold on tight...

    No suggestions here, a few comments:
    - a shorter screw might help, will reduce flexing, easier to feel if/when something moves
    - some hits with a hammer might help...
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    Hi to all, I thought I should post the final...

    Hi to all,

    I thought I should post the final results.

    https://www.practicalmachinist.com/vb/attachment.php?attachmentid=264166&d=1567171279

    They needed a 22 mm hex as well on top for an...
  19. Like Peter said....my angle table is also worn,...

    Like Peter said....my angle table is also worn, while the tilting one is like new. So I keep that on..
    Miss the headroom sometimes though
  20. I think you can unscrew the screw and just leave...

    I think you can unscrew the screw and just leave the nut in place!
  21. Replies
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    Well, that was my initial thought exactly. I...

    Well, that was my initial thought exactly. I thought their female thread was damaged and I had no intention to modify my thread to be off-spec in order to fit theirs. Even if they insisted, I'd have...
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    Hi to all, an update on this: my first test...

    Hi to all,

    an update on this: my first test piece, measuring according to the charts with the three-wire method was sent to the ship for test. Initial reports gave me a scare, since my friend that...
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    I don't think there is an issue. I have several...

    I don't think there is an issue. I have several holders with which the ring (the common ring, the other type) just rattles all around. Just annoying I guess


    (Quite some stick-out that new holder...
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    Many thanks Gordon for all the advice!

    Many thanks Gordon for all the advice!
  25. This is the case indeed, but these containers get...

    This is the case indeed, but these containers get oil from the gears in there
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