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Thread: Enlarging Lathe Spindle Hole?

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    Happy Camper hcpookie's Avatar
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    Default Enlarging Lathe Spindle Hole?

    I've got an itty-bitty 7x10 (actually 7x8) mini lathe from HF. The spindle can only handle up to 5/8 through the spindle. I'm not really wanting to upgrade to the HF or Grizzly 9x series due to the price involved, because I really need it only to handle larger stock and I'd be OK with the 8" travel.

    SO... can the spindle be bored out from 5/8" (.625") to 3/4" (.750")? That means removing 0.0625 from the ID of the spindle. I think it can be done, but I'm not sure what would be the best way to do it.

    I would think that maybe using a chuck in the tailstock, I could chuck a reamer and spin it into the spindle, kinda like how a chamber reamer would be used. ???

    Is there an easy way to cut this hard metal? Stupid idea?
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    GuncoHolic kernelkrink's Avatar
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    What's the OD of the spindle? Would removing the metal screw up the taper for centers and collets?

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    Happy Camper hcpookie's Avatar
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    It is a through-spindle so long stock can be inserted through the machine and anchored in the jaws. In theory I could cut a 10-foot long steel rod, 7" at a time.

    The jaws certainly have enough room to accomodate a larger opening as there is enough meat on them to allow for a 3/4" hole in the center.
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    King unknown user's Avatar
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    The mini-lathe site says it can be done, they say the bore starts at 3/4 and can be reamed out to 13/16. I don't have any real experience here to be able to comment on opening up a 5/8" bore.

    http://www.mini-lathe.com/Mini_lathe...es.htm#Spindle

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    Gunco Apostle konrue66's Avatar
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    hc:
    When I work running leaths we incresed the id on a 24ft acuma so I think it will work on yours.
    Last edited by konrue66; 03-07-2006 at 01:50 PM.
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    Byg
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    Like unknown said,check mini-lathe.com I read about some guys doing this and there is actually a fellow who would loan the reamer out to ya(pretty nice of him).I just bought me a mini 7x12 so i have been researching alot about these little machines...

  7. #7
    King unknown user's Avatar
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    Found some more info:

    http://www.mini-lathe.com/Mini_lathe...er2/Homier.htm

    Search that page for "ream", there's a link to a guy that rents a reamer just for this purpose.

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    Happy Camper hcpookie's Avatar
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    WELL... I missed that page by looking in the wrong section. COOL INFO. I have an adjustable reamer so it looks like all I need now is to get a chuck for the tailstock and I'm pretty sure I'd be set.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

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