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Ultimate Muni Seat "Mandrill Butt"

Started by jrdugueod · · Last activity · 39 posts · 635 views

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rec.sport.unicycling
Published
1 February 2007
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7 February 2007
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jrdugueod
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  1. This is my first attempt at a custom Muni seat. I started with a Scott
    Wallis DeRail base, handle and bumper. If you have never seen these,
    they are works of art, strong, light and well thought out. First photo
    shows all the bits I started with:
    1. Scott Wallis derail base, deathegrip handle, cf bumper, cf brake
    lever
    2. Faom-closed cell, Remnant from Ebay, $12 enough to do 6 seats
    3. Cover material, $5 remnant for prototype, sheeps leather for final
    4. Thomson seat post
    5. Upholstery thread, nylon webbing, velcro
    Tools:
    1. Electric caerving knife
    2. Band saw
    3. Sewing machine
    4. Sand paper, scissors, sharpie etc.

    +-------------------------------------------------------------------+
    |Filename: bb1.jpg |
    |Download: http://www.unicyclist.com/attachment/17626 |
    +-------------------------------------------------------------------+

    --
    jrdugueod

    "Whether you think you can or you can't, you're right!"
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  2. I started by roughing out foam on band saw, then hit it with carving
    knife and sandpaper. Top curve is similar to niw KH Freeride(flat).

    +-------------------------------------------------------------------+
    |Filename: bb2.jpg |
    |Download: http://www.unicyclist.com/attachment/17627 |
    +-------------------------------------------------------------------+

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    jrdugueod

    "Whether you think you can or you can't, you're right!"
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  3. More shaping then the cover:

    +-------------------------------------------------------------------+
    |Filename: bb4.jpg |
    |Download: http://www.unicyclist.com/attachment/17628 |
    +-------------------------------------------------------------------+

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    jrdugueod

    "Whether you think you can or you can't, you're right!"
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  4. Finished cover:

    +-------------------------------------------------------------------+
    |Filename: bb5.jpg |
    |Download: http://www.unicyclist.com/attachment/17629 |
    +-------------------------------------------------------------------+

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    jrdugueod

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  5. Cover on the seat. And it rides really well, firm but comfy. The
    Scott Wallis set up makes for better control and is so much lighter.
    This is just the prototype. Will post pix of final seat.

    +-------------------------------------------------------------------+
    |Filename: bb6.jpg |
    |Download: http://www.unicyclist.com/attachment/17630 |
    +-------------------------------------------------------------------+

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    jrdugueod

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  6. Do you know what type of foam that was? I have all those tools and
    parts, just can't find descent foam anywhere.

    The seat looks very nice! Good work! How long did it take you to finish
    it?

    --
    Danni

    leo said:

    Without cocks you wouldn't even have a family forum.

    '*Ha Ha haaaaa*' (

    )'!'
    (http://www.unicyclist.com/forums/showthread.php?t=54347)
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  7. Danni said:

    Do you know what type of foam that was? I have all those tools and
    parts, just can't find descent foam anywhere.

    The seat looks very nice! Good work! How long did it take you to finish
    it?

    The foam is Minicell closed cell 2lb. Here is a link to the auction I
    bought it on:
    http://tinyurl.com/2vmocl
    The guys email is: [email hidden]

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  8. That's awesome looking! Why didn't you include an air seat in the
    process?

    --
    MuniAddict

    "There is an -idea-, of a Patrick Bateman"

    My Videos: http://youtube.com/profile_videos?user=ttt8699
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  9. I am very interested in this! Do you think it would comfortable with
    only 1.5 inches for a trials seat that needs low profile? Thanks!

    --
    Danni

    leo said:

    Without cocks you wouldn't even have a family forum.

    '*Ha Ha haaaaa*' (

    )'!'
    (http://www.unicyclist.com/forums/showthread.php?t=54347)
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  10. Danni said:

    I am very interested in this! Do you think it would comfortable with
    only 1.5 inches for a trials seat that needs low profile? Thanks!

    Assuming it's the kind of foam I am thinking of, it would be
    comfortable even if it was thin.

    I know my DX seat has around 1" of foam on it now, and it's pretty
    comfortable.

    I think the key to a comfortable seat is making it more flat.

    --
    Borgschulze

    http://borgschulze.deviantart.com/
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  11. Borgschulze said:

    Assuming it's the kind of foam I am thinking of, it would be comfortable
    even if it was thin.

    I know my DX seat has around 1" of foam on it now, and it's pretty
    comfortable.

    I think the key to a comfortable seat is making it more flat.

    The problem I've had with "closed cell" foam, is that it becomes pretty
    hard once it's compressed from your weight, and thus becomes
    permanently thinner. This foam is quite dense to begin with, and it
    does not "bounce" back very quicky and stays compacted. But I think
    Jim's setup should work well because his foam looks to be pretty thick
    so hopefully there will be sufficient cushioning. I also would probably
    try adding an air seat feature *under* the foam for added comfort and
    adjustability.

    --
    MuniAddict

    "There is an -idea-, of a Patrick Bateman"

    My Videos: http://youtube.com/profile_videos?user=ttt8699
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  12. What would be the best foam for 1 to 1.5 inches low profile trials seat?
    The memory foam I have on now kinda sux: it freezes supper easily and
    turns rock hard!

    --
    Danni

    leo said:

    Without cocks you wouldn't even have a family forum.

    '*Ha Ha haaaaa*' (

    )'!'
    (http://www.unicyclist.com/forums/showthread.php?t=54347)
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  13. Danni said:

    What would be the best foam for 1 to 1.5 inches low profile trials seat?
    The memory foam I have on now kinda sux: it freezes supper easily and
    turns rock hard!

    Yep, memory foam is even worse for that very reason-it has almost
    zero-bouce back response. I suppose if you rode in super slo motion,
    you would be able to wait for the foam to "puff" back up. I think the
    standard medium density foam works best. It retains its shape, bouces
    back quickly and will not generally become hard from permanent
    compression. Just make sure it's not too thin to prevent bottoming out
    on your seat base.

    --
    MuniAddict

    "There is an -idea-, of a Patrick Bateman"

    My Videos: http://youtube.com/profile_videos?user=ttt8699
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  14. MuniAddict said:

    Just make sure it's not too thin to prevent bottoming out on your seat
    base.

    My seat would kill you.

    --
    Borgschulze

    http://borgschulze.deviantart.com/
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  15. Maybe invent a customized type of saddle that is "molded" to your EXACT
    butt shape! 😄 Kindof like how they mold orthodics to fit your feet.
    Hmmmm, that's a thought.

    --
    MuniAddict

    "There is an -idea-, of a Patrick Bateman"

    My Videos: http://youtube.com/profile_videos?user=ttt8699
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  16. MuniAddict said:

    Yep, memory foam is even worse for that very reason-it has almost
    zero-bouce back response. I suppose if you rode in super slo motion,
    you would be able to wait for the foam to "puff" back up. I think the
    standard medium density foam works best. It retains its shape, bouces
    back quickly and will not generally become hard from permanent
    compression. Just make sure it's not too thin to prevent bottoming out
    on your seat base. Actually, I would get the densest foam I could find
    that still bouces back fast, but would allow a nice center channel to
    be cut down the middle and still maintain firmness.

    Do you know of any?

    --
    Danni

    leo said:

    Without cocks you wouldn't even have a family forum.

    '*Ha Ha haaaaa*' (

    )'!'
    (http://www.unicyclist.com/forums/showthread.php?t=54347)
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  17. MuniAddict said:

    That's awesome looking! Why didn't you include an air seat in the
    process? Also, what is the material of the cover?

    This seat is very comfy, much lighter and tighter(doesn't move around
    like an airseat). Also, totally reliable, zero leaks! The foam is the
    kind they use on gym floors and will not compress over time. The cover
    is temporary for the pattern, just cheap vinyl. I have leather to sew
    up now.

    --
    jrdugueod

    "Whether you think you can or you can't, you're right!"
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  18. Danni said:

    I am very interested in this! Do you think it would comfortable with
    only 1.5 inches for a trials seat that needs low profile? Thanks!

    Yes-I'll measure but mine is no more than 2" thick and I think less.
    The DeRail base is much deeper than other so gives the illusion of
    thick foam.

    --
    jrdugueod

    "Whether you think you can or you can't, you're right!"
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  19. MuniAddict said:

    Maybe invent a customized type of saddle that is "molded" to your EXACT
    butt shape! 😄 Kindof like how they mold orthodics to fit your feet.
    Hmmmm, that's a thought.

    sounds expensive

    --
    mornish

    aim:kiloornish
    email: mornish AT gmail DOT com

    maxcarriere said:

    nah, he just wants to buy the cranks to look at them and rub them on his
    body..

    muniaddict said:

    does he have me confused with somebody who's actually good?


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  20. mornish said:

    sounds expensive

    Make a batch of plaster, thick viscosity, sit in it, leaving your
    "impression", wait for it to dry. Then fill it with some sort of
    rubbery material that will harden frim. Remove from mold, trim off
    excess, and "Viola"...your very own custom seat foam! (I have a feeling
    it would be waaay to wide!)

    --
    MuniAddict

    "There is an -idea-, of a Patrick Bateman"

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