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Thread: Bonk Bonk!!

  1. #16
    Join Date
    Sep 2003
    Location
    Grand Marais, MN. A transplant from Minneapolis
    Posts
    5,513
    Quote Originally Posted by Andy Hoyt
    I concur with the Secretary,

    Only one gig on the bonker. The fat end should be to the left
    OK Let the fight begin, First questions on spin crack
    1. Do I understand you to say the heavy part goes on the Motor side I switched directions a couple times to get a better angle on cutting and sanding the ends the ends.
    2. Instruction book was pretty vague. We're clearly cutting across the grain! is the a right or wrong direction?
    3. I'm assuming start slow speed and build as you achieve balance and smoothness?
    Ok that will keep me scratching for a while.
    TIA
    TJH
    Live Like You Mean It.



    http://www.northhouse.org/

  2. #17
    Join Date
    Feb 2006
    Location
    Bedford County, Virginia
    Posts
    2,325
    Quote Originally Posted by Tyler Howell
    OK Let the fight begin, First questions on spin crack
    1. Do I understand you to say the heavy part goes on the Motor side I switched directions a couple times to get a better angle on cutting and sanding the ends the ends.
    2. Instruction book was pretty vague. We're clearly cutting across the grain! is the a right or wrong direction?
    3. I'm assuming start slow speed and build as you achieve balance and smoothness?
    Ok that will keep me scratching for a while.
    TIA
    I'm not sure if I've ever heard that addressed (which could possibly only attest to my ever-shrinking memory), but it just "feels right" to have the most mass on the end where the piece is being driven. There may be a more scientific answer--OK Tyler now you've got me scratching my head too!

    Oh...and, nice bonker!!!

    Mark

  3. #18
    Join Date
    Feb 2003
    Location
    Yorktown, VA
    Posts
    2,756
    Fairly bonked!!

  4. #19
    Join Date
    Feb 2003
    Location
    Just outside of Spring Green, Wisconsin
    Posts
    9,442
    Quote Originally Posted by Tyler Howell
    OK Let the fight begin, First questions on spin crack
    1. Do I understand you to say the heavy part goes on the Motor side I switched directions a couple times to get a better angle on cutting and sanding the ends the ends.
    2. Instruction book was pretty vague. We're clearly cutting across the grain! is the a right or wrong direction?
    3. I'm assuming start slow speed and build as you achieve balance and smoothness?
    Ok that will keep me scratching for a while.
    TIA
    Tyler, I don't know if there's a stead-fast rule on it but, I've always done it where the most mass of the piece stays closest to the most mass of the lathe (headstock). On a spindle turning (ala bonker), that may not make as much of a difference but, it will once you get to doing bowls, HF's, etc...

    Yes, you will be cutting across the grain but, tool sharpness takes care of issues with that because, yes, one direction will typically be a bit easier than the other. Still, you should never have to reverse the piece to accommodate that. It's technique and again, tool sharpness. Here's a tip: Whenever using a skew, always go down a profile, not up! Hence, if you're making a "cove" in a piece, go down to the valley of it then, switch sides and come in from the other side to meet it. When using a gouge, that's not quite as critical but, if you teach yourself to do that, both the gouge and skew will work better for you.

    Yup, you're spot on for the speed question. Once you get the rough turn running round and smooth, you can increase your speed. However, that is also reliant on the diameter of the piece. The larger the diameter, the less you want/need to increase the speed, as the rev's on the outside will be much faster on a large diameter piece.

    You're doing well, my friend! Keep it up!
    Last edited by John Miliunas; 09-04-2006 at 10:09 AM.
    Cheers,
    John K. Miliunas

    Cannot find REALITY.SYS. Universe halted.
    60 grit is a turning tool, ain't it?
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  5. #20
    Join Date
    Aug 2005
    Location
    Benton Falls, Maine
    Posts
    5,480
    I was just messing with you Tyler, but as is occasionally the case, there was also some truth to it as John has pointed out. With that fine bonker the concern is less critical since it's relatively small. But with a much heavier piece, yup - you betcha by golly fer sure.

    Instruction book? You don't need no stinkin' instruction book! That's what we're for. What's that, you say? Oh yeah, better hit the local library. Enjoy.
    Only the Blue Roads

  6. #21
    See? That didn't hurt THAT bad, did it?
    Good luck with the "scheduling lathe time".

  7. #22
    Join Date
    Feb 2003
    Location
    Conway, Arkansas
    Posts
    13,182
    A most excellent bonker that Tyler!!!!! Congrats buddy!!!! I just knew you had it in ya to turn sumpin on that there thang.
    Thanks & Happy Wood Chips,
    Dennis -
    Get the Benefits of Being an SMC Contributor..!
    ....DEBT is nothing more than yesterday's spending taken from tomorrow's income.

  8. #23
    Join Date
    Jun 2005
    Location
    Charlotte, NC
    Posts
    366

    Graffiti

    Tyler...There looks to be a bunch of graffiti all over your brand new tool. Can't believe someone would write all over that pretty thingy.

    Maybe you could schedule some washing time in your palm?

  9. #24
    Join Date
    Feb 2006
    Location
    Buse Township, MN
    Posts
    1,500
    What Don said.....Nice bonker BTW, well done!

    FRANK, your turn to come out and playyyyyyyyyy...
    Officially Retired!!!!!!!! Woo-Hoo!!!

    1,036 miles NW of Keith Burns

  10. #25
    Join Date
    Aug 2005
    Location
    Benton Falls, Maine
    Posts
    5,480
    Oh man! We're all, well some of us - and me at the top of the list because I started it - are a bunch of knurodnicks.

    Ol' Eagle Eye Stinson has just pointed out to me that the pic was taken from the back side of the lathe.

    Doh!

    Sorry, Tyler. When you're done with that library book, pass it over it this way.
    Only the Blue Roads

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