Mp850

Discussion in 'Some Assembly Required' started by roamer, Jun 10, 2013.

  1. roamer

    roamer Been here awhile

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    308
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    Starting the swingarm. The six machined spud ends can be seen bolted to the uprights. The spuds have a semi-press fit into the tube, with a .06 chamfer on each for the weld.

    [​IMG]

    [​IMG]
    #21
  2. roamer

    roamer Been here awhile

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    Some more progress on the swing arm..

    [​IMG]
    #22
  3. roamer

    roamer Been here awhile

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    Back into the machine to align bore the bearing bores..

    [​IMG]
    #23
  4. pennswoodsed

    pennswoodsed lizards,bugs and me

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    Be a shame to build all those beautiful jigs for one copy <label for="rb_iconid_28">:evil</label>
    #24
  5. roamer

    roamer Been here awhile

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    That's true.
    If this prototype works like its intended, I might make more.
    #25
  6. MiteyF

    MiteyF Long timer

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    Michigan... temporarily
    Subscribed. I always wished I had more time to design/machine motorcycle parts when I had access to all the tools... someday when my woman makes me all that money I've been needing :-)
    #26
  7. Pezz_gs

    Pezz_gs Cant ride for crap

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    Roamer,

    This is looking very nice :freaky

    Im watching this build :deal
    #27
  8. Scubawerx

    Scubawerx Scubawerx

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    Very subscribed!
    #28
  9. roamer

    roamer Been here awhile

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    Once the bores are all squared up, the boring head was put to work. The upper bore in this video was done first, then an extension was added. This allowed the boring head to pass thru the finished bore and reach the lower bore all in one clamping.
    If I were to flip the fixture and do the second bore, that would be an opportunity to introduce error. This worked really well. When uninstalled the pivot shaft, it went in smooth as glass.

    https://www.youtube.com/watch?v=HwkvZhRfahw&feature=youtube_gdata_player

    https://www.youtube.com/watch?v=HwkvZhRfahw&feature=youtube_gdata_player

    Sent from my Nexus 7 using Tapatalk 4
    #29
  10. Donkey Hotey

    Donkey Hotey De Jo Momma

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    You MUST do tool and die work to have a boring setup that specialized. Dual cutter or just rigid as hell?

    If somebody walked in off the street and needed that done, most would have no idea how expensive that would be or the investment in tooling involved. Bravo! :lol3

    You must have assembled everything in-place and hoped you didn't accidentally move X & Y. The VF-2 doesn't have enough Z travel to pull that cutter all the way out of the part.

    (edit: MAYBE it does...JUST barely)
    #30
  11. roamer

    roamer Been here awhile

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    It's a KOMET boring system. The extensions are really rigid. A lot of light cuts to prevent deflection and chatter.
    With the right combination of extensions, I was able to just clear the top bore.
    It worked pretty well, roundness is under .0001" and the concentricity between the two bores is under .0002".
    I'm happy with that.

    Sent from my Nexus 7 using Tapatalk 4
    #31
  12. OaklandStrom

    OaklandStrom Long timer

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    I'm confused. The upload date on the video is 2011.

    Are you building this now, or did you do some of the work a few years ago?

    #32
  13. roamer

    roamer Been here awhile

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    The shock mount on the swing arm, The tube clamp portion is slightly offset, and the mount block is offset, making for a few combinations of leverage adjustment. That shock is not going to be used, its just for checking clearance of the lower shock eye.

    [​IMG]
    #33
  14. crazydrummerdude

    crazydrummerdude Wacky Bongo Boy

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    El Segundo, CA
    This is some great work. Keep the updates coming.

    I really miss having access to Haas equipment.

    I really don't miss working in a machine shop.

    A VF2 in my garage would suit me nicely.
    #34
  15. roamer

    roamer Been here awhile

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    Got a few of these knocked out...

    [​IMG]

    [​IMG]

    [​IMG]
    #35
  16. Krasniewski

    Krasniewski I don't ride much.

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    LA - Lower Alabama
    I'm curious as to why the 848... power to weight, or a personal affinity?

    Looks beautiful - really nice work there.
    #36
  17. roamer

    roamer Been here awhile

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    A little of both really. The horse power is just right for the application, I don't follow the "bigger is better" mindset.
    There are a couple unique features that will become apparent once its complete.

    Sent from my Nexus 7 using Tapatalk 4
    #37