Fixing the Shaft Hole

Discussion in 'Fettling Forum' started by RonPH, Jun 7, 2012.

  1. RonPH

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    Its another day at the TechShop for me and you all are wondering what lathe do I use to work on. Here is a picture

    1339024690-Jet_Lathe.jpg

    My first order was to fix up the pump rod cap which obviously was worn on one side as shown here

    1339024761-Cap001.jpg

    I mounted the cap on to the 3 jaw chuck and with a drill bit enlarged the hole. My first attempt to make a plug was NOT a success since I made the plug a bit too small for the hole. My second attempt was a success. I guess I need only to have a light touch at the wheel when turning brass. The result

    1339024897-Cap_002.jpg

    Here is how it would look once it is brazed on the inside

    1339025344-Cap003.jpg

    On the top

    1339025478-Cap_004.jpg

    Aside from that, I was practicing to make pump knobs and for practice I used aluminum as shown here

    1339025550-knob001.jpg

    No quite there yet as I need to get me a forming bit. The curves are just using one hand on the Z axis and one hand on the Y axis while keeping an eye on the bit tip as it eats away at the aluminum-num :mrgreen:

    The 3rd project was just drilling hole sizes on a hexagonal aluminum that would accept the stainless end of an MSR XGK and on the other end would be a Rectus male quick connect/disconnect brass coupling which is not show at the moment.

    Took me 3 hours of fun doing this. Am sure the masters at lathe would have it done in half the time or even less :thumbup:

    Thanks for looking

    PS. Yeah I intentionally put the subject AS SUCH lemme see who's got a green mind.

    Ron
     
    Last edited by a moderator: Jun 26, 2015
  2. Murph

    Murph United States Subscriber

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    Well, brazing might be nice, but if the braze migrates to the cap threads, you're knackered!

    And I'd hate to see such good work have bad luck get the best of it!

    Since it really doesn't have any heat or forces applied to it, I'd consider using a compound called Just For Copper.

    It's a specially formulated "super glue" made for working with copper, brass, or bronze. I've used it on water pipe and compressed air lines with no worries, holds tighter than a bleepin' barnacle!

    Only my tuppence, mate, nothing more.

    Murph
     
  3. Big BTU

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    looking good Ron.
     
  4. anlrolfe

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    Part of me is working very hard, resisting to say something I(we) could regret. =; [-X :D/ :^o ;) :oops: :doh: :-s :-k :-# :-# :-# :-#

    AR
     
  5. RonPH

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    Murph, Berniedawg gave me a great tip, that is apply india ink on the surface you dont want the silver solder to go. Besides, the silver solder will be only applied sparingly so it will not go as far as the threads.

    Anlrolfe :lol: :lol: :lol: :lol: green you are :mrgreen:
     
  6. weasel

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    Your skills are coming along nicely. Haven't played with a lathe since college.

    P.S. Poor choice in words for the topic title :doh:
     
  7. RonPH

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    Its a play of words Weasel. Just to see who would react. That's two already. Also, it attracts attention ;) or curiosity.

    Ron
     
  8. Arachnocampa

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    Just a thought Ron, maybe you could try using a round file to finish off those curves.
     
  9. loco7stove

    loco7stove Subscriber

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    Last edited by a moderator: Jul 1, 2015
  10. RonPH

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    Hey Arachnocampa, its possible but the shop discourages using files on the lathe machines as there is the danger of the file grabbing the metal or any part of the machine which would pose a danger to the machinist or equipment. I could do it perhaps off the lathe.

    Stu, never thought there was a round indexable insert. First time to see that kind of insert actually and may try to find one this side of the pond. Thanks for the very helpful information. :thumbup:

    Ron