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Design Challenge

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Cycling Equipment
Published
17 March 2008
Last activity
24 March 2008
Original author
Marian
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15
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  1. For the last two years some friends of mine have been helping a local
    woodcutter who was paralyzed below the waist in an accident that
    severed his spinal cord.

    His bedsores and various other problems caused mostly by gross
    incompetence combined with total non caring on the part of his local
    well I suppose you must call it a hospital have very nearly healed and
    although the kindness of their missionary hearts has gone this far,
    they would like very much to get him living in his own village on his
    own without their daily assistance.

    Preferably able to perform at least some of the minor chores necessary
    to do around the farm such as feeding the pigs.

    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.

    The pastor and I are both into bikes with him being slightly more
    mechanically inclined than I am and me being vastly more inclined to
    spend my money on myself rather than other people. The plan that he
    and I have come up with basically involves a handcycle (probably
    recumbent) of some kind using either a 3 speed or 5 speed hub.
    Derailleur systems have been completely ruled out on the grounds that
    the local way to fix things you don't quite understand mostly involves
    hitting them with something heavy until it either works again or
    completely doesn't.

    With the exception of the hub (the cost of which will come out of
    charitable pockets) we are planning to build this entirely out of
    locally available materials. We plan to cannibalize, chop, and re-
    weld ancient bike frames for the frame itself. So far, beyond the
    initial brainstorming session (which mostly served to figure out what
    we absolutely couldn't do) we haven't really gotten much into how and
    where the drive system and steering system will work.

    If anyone has recumbent or handcycle building experience or just
    thinks this is cool and is willing to help out with the planning, we
    could really use it.

    This will be a first time for either of us and we really have no idea
    what we're doing.

    Thanks,
    -M

  2. how about a gruesome accident description? without a gruesome acident
    description, where are we?

  3. In article
    <[email hidden]>,

    Marian said:

    For the last two years some friends of mine have been helping a local
    woodcutter who was paralyzed below the waist in an accident that
    severed his spinal cord.

    His bedsores and various other problems caused mostly by gross
    incompetence combined with total non caring on the part of his local
    well I suppose you must call it a hospital have very nearly healed and
    although the kindness of their missionary hearts has gone this far,
    they would like very much to get him living in his own village on his
    own without their daily assistance.

    Preferably able to perform at least some of the minor chores necessary
    to do around the farm such as feeding the pigs.

    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.

    The pastor and I are both into bikes with him being slightly more
    mechanically inclined than I am and me being vastly more inclined to
    spend my money on myself rather than other people. The plan that he
    and I have come up with basically involves a handcycle (probably
    recumbent) of some kind using either a 3 speed or 5 speed hub.
    Derailleur systems have been completely ruled out on the grounds that
    the local way to fix things you don't quite understand mostly involves
    hitting them with something heavy until it either works again or
    completely doesn't.

    With the exception of the hub (the cost of which will come out of
    charitable pockets) we are planning to build this entirely out of
    locally available materials. We plan to cannibalize, chop, and re-
    weld ancient bike frames for the frame itself. So far, beyond the
    initial brainstorming session (which mostly served to figure out what
    we absolutely couldn't do) we haven't really gotten much into how and
    where the drive system and steering system will work.

    If anyone has recumbent or handcycle building experience or just
    thinks this is cool and is willing to help out with the planning, we
    could really use it.

    This will be a first time for either of us and we really have no idea
    what we're doing.

    Oh dear.

    http://www.varnahandcycles.com/handcycles.htm

    Georgiev also built the fastest HPV on the planet.

    If you look at his Big Wheels designs, I think you will find something
    worth stealing.

    The idea of using a handcycle on a muddy farm is intimidating, for a few
    reasons. One is no reverse gear. The other is sinking into the mud. I
    don't know where Varna is sourcing 20" x 3" tires, but that sounds like
    the right plan to me. In the 26" size, you would have access to MTB DH
    tires, plus freaks like the Surly Pugsley tires and rims.

    I realize that the economics of the thing in China are not what they
    would be here, but when you consider the prices Varna charges and the
    magnitude of what you're proposing, it may be cheaper to get him to
    build the bike.

    I don't know of other handcycle makers, but they are out there. Varna's
    reputation comes to me because they are local and because of the Varna
    Diablo series.

    --
    Ryan Cousineau [email hidden] http://www.wiredcola.com/
    "In other newsgroups, they killfile trolls."
    "In rec.bicycles.racing, we coach them."

  4. AN OLD PUBLISHED INTERNET plan for cutting a bike in two then placing
    the drive wheel in front was on around 2000?

  5. datakoll said:

    how about a gruesome accident description? without a gruesome acident
    description, where are we?

    I understand that a tree fell on him.

    The teenage son and some of his friends were out in the countryside
    doing something like delivering children's books to a school on their
    way to go surfing or something like that and for some reason or
    another they ended up meeting this guy and being horrified by his
    condition. When he was sent home from the hospital his wife and
    family were told that they could feed him if they wanted to but really
    shouldn't bother because he was going to die and even if he didn't die
    he ought to die because he would be useless for the rest of his life.

    I met the guy in the wheelchair about two months after he moved in
    with them and six or eight months before he converted. As I am to
    understand it his becoming Christian was sort of a side effect of them
    literally saving his life. They don't really preach (even to me, even
    after years of my being their friend). They just quietly do good
    works and occasionally answer direct questions from really persistent
    people.

    He's been living with them almost two years now and although there
    have been complications a couple of time and at least three sets of
    new operations he's getting ready to go home. It would be a shame to
    have done so much and gotten him to the strength level he's at and
    then send him home to the village to spend the rest of his existence
    doing nothing but sitting indoors unable to go anywhere or do
    anything.

    My being their friend for years and years has in no way shape or form
    made me the slightest bit Christian. I have, however, converted the
    pastor to the joy of long distance riding on a road bike. (He
    understood nice bikes. He just didn't understand the point in having
    one of his own until the bike shop and me found him a good secondhand
    one.) He even has a couple of jerseys these days and we've scheduled
    his first century for this upcoming weekend. Since both of us are
    mechanically inclined we figured if we had plans (or even rough
    descriptions) we might be able to put something together.

    -M

  6. Ryan Cousineau said:

    In article
    <[email hidden]>,

    Marian said:

    For the last two years some friends of mine have been helping a local
    woodcutter who was paralyzed below the waist in an accident that
    severed his spinal cord.

    Quoted message said:

    His bedsores and various other problems caused mostly by gross
    incompetence combined with total non caring on the part of his local
    well I suppose you must call it a hospital have very nearly healed and
    although the kindness of their missionary hearts has gone this far,
    they would like very much to get him living in his own village on his
    own without their daily assistance.

    Quoted message said:

    Preferably able to perform at least some of the minor chores necessary
    to do around the farm such as feeding the pigs.

    Quoted message said:

    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.

    Quoted message said:

    The pastor and I are both into bikes with him being slightly more
    mechanically inclined than I am and me being vastly more inclined to
    spend my money on myself rather than other people. The plan that he
    and I have come up with basically involves a handcycle (probably
    recumbent) of some kind using either a 3 speed or 5 speed hub.
    Derailleur systems have been completely ruled out on the grounds that
    the local way to fix things you don't quite understand mostly involves
    hitting them with something heavy until it either works again or
    completely doesn't.

    Quoted message said:

    With the exception of the hub (the cost of which will come out of
    charitable pockets) we are planning to build this entirely out of
    locally available materials. We plan to cannibalize, chop, and re-
    weld ancient bike frames for the frame itself. So far, beyond the
    initial brainstorming session (which mostly served to figure out what
    we absolutely couldn't do) we haven't really gotten much into how and
    where the drive system and steering system will work.

    Quoted message said:

    If anyone has recumbent or handcycle building experience or just
    thinks this is cool and is willing to help out with the planning, we
    could really use it.

    Quoted message said:

    This will be a first time for either of us and we really have no idea
    what we're doing.

    Oh dear.

    http://www.varnahandcycles.com/handcycles.htm

    Georgiev also built the fastest HPV on the planet.

    If you look at his Big Wheels designs, I think you will find something
    worth stealing.

    The idea of using a handcycle on a muddy farm is intimidating, for a few
    reasons. One is no reverse gear.

    You can reverse by putting your hands on the wheels same as with a
    wheelchair. Not pleasant but it can get you out of a sticky
    situation.

    And he's going to need to be able to get places that are close enough
    that putting him on a tractor could be difficult but far enough away
    that pushing the wheelchair or carrying him will also be difficult.

    Quoted message said:

    The other is sinking into the mud. I
    don't know where Varna is sourcing 20" x 3" tires, but that sounds like
    the right plan to me. In the 26" size, you would have access to MTB DH
    tires, plus freaks like the Surly Pugsley tires and rims.

    I realize that the economics of the thing in China are not what they
    would be here, but when you consider the prices Varna charges and the
    magnitude of what you're proposing, it may be cheaper to get him to
    build the bike.

    A thought of mine was to look around until we found something that
    most closely fit the requirements and then ask the manufacturer if
    they might be willing to 'sponsor' our guy. For all the charitable
    works and giving away that he does, it never occurred to Tim that he
    could just ask someone other than one of the charities he already
    works with for equipment.

    I've been doing the back-end of organizing pro sports stuff. I've
    really gotten quite used to asking people to just give me things for
    no better reason than because I asked. Even better, I've gotten quite
    used to people just giving me things for no better reason than because
    I was there.

    I'd still like to try a hand at building something. I don't get many
    excuses to play with welding torches.

    -M

  7. Marian said:
    Ryan Cousineau said:

    In article
    <[email hidden]>,

    Quoted message said:
    Marian said:

    For the last two years some friends of mine have been helping a local
    woodcutter who was paralyzed below the waist in an accident that
    severed his spinal cord.

    Quoted message said:
    Quoted message said:

    His bedsores and various other problems caused mostly by gross
    incompetence combined with total non caring on the part of his local
    well I suppose you must call it a hospital have very nearly healed and
    although the kindness of their missionary hearts has gone this far,
    they would like very much to get him living in his own village on his
    own without their daily assistance.

    Quoted message said:
    Quoted message said:

    Preferably able to perform at least some of the minor chores necessary
    to do around the farm such as feeding the pigs.

    Quoted message said:
    Quoted message said:

    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.

    Quoted message said:
    Quoted message said:

    The pastor and I are both into bikes with him being slightly more
    mechanically inclined than I am and me being vastly more inclined to
    spend my money on myself rather than other people. The plan that he
    and I have come up with basically involves a handcycle (probably
    recumbent) of some kind using either a 3 speed or 5 speed hub.
    Derailleur systems have been completely ruled out on the grounds that
    the local way to fix things you don't quite understand mostly involves
    hitting them with something heavy until it either works again or
    completely doesn't.

    Quoted message said:
    Quoted message said:

    With the exception of the hub (the cost of which will come out of
    charitable pockets) we are planning to build this entirely out of
    locally available materials. We plan to cannibalize, chop, and re-
    weld ancient bike frames for the frame itself. So far, beyond the
    initial brainstorming session (which mostly served to figure out what
    we absolutely couldn't do) we haven't really gotten much into how and
    where the drive system and steering system will work.

    Quoted message said:
    Quoted message said:

    If anyone has recumbent or handcycle building experience or just
    thinks this is cool and is willing to help out with the planning, we
    could really use it.

    Quoted message said:
    Quoted message said:

    This will be a first time for either of us and we really have no idea
    what we're doing.

    Quoted message said:

    Oh dear.

    Quoted message said:

    http://www.varnahandcycles.com/handcycles.htm

    Quoted message said:

    Georgiev also built the fastest HPV on the planet.

    Quoted message said:

    If you look at his Big Wheels designs, I think you will find something
    worth stealing.

    Quoted message said:

    The idea of using a handcycle on a muddy farm is intimidating, for a few
    reasons. One is no reverse gear.

    You can reverse by putting your hands on the wheels same as with a
    wheelchair. Not pleasant but it can get you out of a sticky
    situation.

    And he's going to need to be able to get places that are close enough
    that putting him on a tractor could be difficult but far enough away
    that pushing the wheelchair or carrying him will also be difficult.

    Quoted message said:

    The other is sinking into the mud. I
    don't know where Varna is sourcing 20" x 3" tires, but that sounds like
    the right plan to me. In the 26" size, you would have access to MTB DH
    tires, plus freaks like the Surly Pugsley tires and rims.

    Quoted message said:

    I realize that the economics of the thing in China are not what they
    would be here, but when you consider the prices Varna charges and the
    magnitude of what you're proposing, it may be cheaper to get him to
    build the bike.

    A thought of mine was to look around until we found something that
    most closely fit the requirements and then ask the manufacturer if
    they might be willing to 'sponsor' our guy. For all the charitable
    works and giving away that he does, it never occurred to Tim that he
    could just ask someone other than one of the charities he already
    works with for equipment.

    I've been doing the back-end of organizing pro sports stuff. I've
    really gotten quite used to asking people to just give me things for
    no better reason than because I asked. Even better, I've gotten quite
    used to people just giving me things for no better reason than because
    I was there.

    I'd still like to try a hand at building something. I don't get many
    excuses to play with welding torches.

    You're good people. Set up a web site with PayPal donations and I'll
    kick in some - I'm sure others will, too.

    R

  8. Marian said:

    For the last two years some friends of mine have been helping a local
    woodcutter who was paralyzed below the waist in an accident that
    severed his spinal cord.

    His bedsores and various other problems caused mostly by gross
    incompetence combined with total non caring on the part of his local
    well I suppose you must call it a hospital have very nearly healed and
    although the kindness of their missionary hearts has gone this far,
    they would like very much to get him living in his own village on his
    own without their daily assistance.

    Preferably able to perform at least some of the minor chores necessary
    to do around the farm such as feeding the pigs.

    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.

    The pastor and I are both into bikes with him being slightly more
    mechanically inclined than I am and me being vastly more inclined to
    spend my money on myself rather than other people. The plan that he
    and I have come up with basically involves a handcycle (probably
    recumbent) of some kind using either a 3 speed or 5 speed hub.
    Derailleur systems have been completely ruled out on the grounds that
    the local way to fix things you don't quite understand mostly involves
    hitting them with something heavy until it either works again or
    completely doesn't.

    With the exception of the hub (the cost of which will come out of
    charitable pockets) we are planning to build this entirely out of
    locally available materials. We plan to cannibalize, chop, and re-
    weld ancient bike frames for the frame itself. So far, beyond the
    initial brainstorming session (which mostly served to figure out what
    we absolutely couldn't do) we haven't really gotten much into how and
    where the drive system and steering system will work.

    If anyone has recumbent or handcycle building experience or just
    thinks this is cool and is willing to help out with the planning, we
    could really use it.

    This will be a first time for either of us and we really have no idea
    what we're doing.

    Thanks,
    -M

    I hope that this site may provide a few ideas: http://www.teamhybrid.co.uk/
    They seem like a good idea because the front end detaches and it
    becomes a regular wheelchair again.

  9. RicodJour said:
    Marian said:

    I'd still like to try a hand at building something. I don't get many
    excuses to play with welding torches.

    You're good people. Set up a web site with PayPal donations and I'll
    kick in some - I'm sure others will, too.

    Tim is good people. I'm just helping out.

    C'mon, it's an excuse to play with welding torches. That I'll be
    helping out the person in question is merely a bonus. I mean really
    how many of you would pass up a legitimate excuse to play with welding
    torches?

    -M

  10. RicodJour said:
    Marian said:

    I'd still like to try a hand at building something. I don't get many
    excuses to play with welding torches.

    You're good people. Set up a web site with PayPal donations and I'll
    kick in some - I'm sure others will, too.

    Tim is good people. I'm just helping out.

    C'mon, it's an excuse to play with welding torches. That I'll be
    helping out the person in question is merely a bonus. I mean really
    how many of you would pass up a legitimate excuse to play with welding
    torches?

    -M

  11. bang

  12. Marian Rosenberg said:

    [...]
    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.
    [...]

    For use in mud, tracks beat wheels. See
    <http://www.mobilityeng.com/snowpod1.htm>.

    --
    Tom Sherman - Holstein-Friesland Bovinia
    The weather is here, wish you were beautiful

  13. On Mar 21, 12:22 pm, Tom Sherman <[email hidden]>

    Quoted message said:
    Marian Rosenberg said:

    [...]
    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.
    [...]

    For use in mud, tracks beat wheels. See
    <http://www.mobilityeng.com/snowpod1.htm>.

    Hmmm... still thinking that wheels are better for the "average"
    condition he will experience.

    -M

  14. Marian Rosenberg said:

    On Mar 21, 12:22 pm, Tom Sherman <[email hidden]>

    Quoted message said:
    Marian Rosenberg said:

    [...]
    In the city he can do a pretty good job of getting around in his
    wheelchair but even an offroad wheelchair might find the conditions of
    his village a bit challenging. The roads are used by cattle,
    tractors, and motorcycles and are wide singletrack. Paths through the
    village may have drainage ditches randomly cutting across them.
    Nothing is paved and there is a rainy season. Although some
    modifications will be made to his house (such as either removing the
    eight inch high doorjambs or putting ramps over them) it is fairly
    obvious that his current wheelchair simply is not going to cut it.
    [...]


    For use in mud, tracks beat wheels. See
    <http://www.mobilityeng.com/snowpod1.htm>.

    Hmmm... still thinking that wheels are better for the "average"
    condition he will experience.


    Yes, a tracked vehicle will be rather slow.

    Maybe you could get Surly to donate some "Large Marge" rims [1] and
    "Endomorph 3.7" [2] tires to provide "flotation" on soft surfaces.

    [1] <http://www.surlybikes.com/parts/popup_images/parts_prodLargerim2.jpg>.
    [2]
    <http://www.ison-distribution.com/ison/image/complete/tysu-Endo-comp.jpg>.

    --
    Tom Sherman - Holstein-Friesland Bovinia
    The weather is here, wish you were beautiful

  15. On Mar 24, 11:02 am, Tom Sherman <[email hidden]>

    Quoted message said:
    Marian Rosenberg said:

    On Mar 21, 12:22 pm, Tom Sherman <[email hidden]>

    Quoted message said:

    Marian Rosenberg wrote:
    > [...]
    > In the city he can do a pretty good job of getting around in his
    > wheelchair but even an offroad wheelchair might find the conditions of
    > his village a bit challenging. The roads are used by cattle,
    > tractors, and motorcycles and are wide singletrack. Paths through the
    > village may have drainage ditches randomly cutting across them.
    > Nothing is paved and there is a rainy season. Although some
    > modifications will be made to his house (such as either removing the
    > eight inch high doorjambs or putting ramps over them) it is fairly
    > obvious that his current wheelchair simply is not going to cut it.
    > [...]
    For use in mud, tracks beat wheels. See
    <http://www.mobilityeng.com/snowpod1.htm>.

    Quoted message said:

    Hmmm... still thinking that wheels are better for the "average"
    condition he will experience.

    Yes, a tracked vehicle will be rather slow.

    Maybe you could get Surly to donate some "Large Marge" rims [1] and
    "Endomorph 3.7" [2] tires to provide "flotation" on soft surfaces.

    [1] <http://www.surlybikes.com/parts/popup_images/parts_prodLargerim2.jpg>.
    [2]
    <http://www.ison-distribution.com/ison/image/complete/tysu-Endo-comp.jpg>.

    While donated equipment will be nicer, we're hoping to go with local
    stuff. He'll get at least a three speed hub (and maybe a 7) but other
    than that it's got to be locally purchasable to Chengmai county and
    locally repairable to unskilled mechanics who don't know anything
    fancy.

    -M

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