rec.sport.unicycling · Public discussion

Welding Cranks Question's

unibikeling · 2008-05-03T14:56:47+00:00

Hey, i was going to buy some Quax 10 spline cranks, but i see their only comming in 170mm's now. My borther spawned the idea, Why not cut them, then weld them? I didnt think too much of it, i thought of it would kill the strength of them. Then, my dad was talking to me, and said, if done right, they'd be just like new. He welded for about 15-20 years for a company in town, so he knows what hes talking about for welding. I just wanted a second opinion to the question, Would this weaken the cranks? Thus possibly being able to snap them? Thanks, Graham -- unibikeling 'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/) Grrr! I think I may poo myself in Anger... ------------------------------------------------------------------------ unibikeling's Profile: http://www.unicyclist.com/profile/14752 View this thread: http://www.unicyclist.com/thread/69645 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com

Started by unibikeling · 3 May 2008 · Last activity 3 May 2008 · 19 posts · 348 views

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Original section: rec.sport.unicycling
Published: 3 May 2008
Last activity: 3 May 2008
Original author: unibikeling
Posts: 19
Discussion status: Public discussion
Total views: 348
Views / 30 days: 0
Topics: Electronic shifting

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Original post
unibikeling
Archived post

3 May 2008, 14:56 UTC #1

Hey, i was going to buy some Quax 10 spline cranks, but i see their only
comming in 170mm's now. My borther spawned the idea, Why not cut them,
then weld them? I didnt think too much of it, i thought of it would
kill the strength of them. Then, my dad was talking to me, and said, if
done right, they'd be just like new. He welded for about 15-20 years
for a company in town, so he knows what hes talking about for welding.
I just wanted a second opinion to the question,
Would this weaken the cranks? Thus possibly being able to snap them?
Thanks,
Graham
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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StephenH
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3 May 2008, 15:46 UTC #2

You really wouldn't know until you tried.
One problem I see is getting the pieces lined up just exactly right.
With a piece of mystery metal, you never really know what you're
getting into. If the cranks are a high-carbon steel or are a
heat-treated alloy steel or aluminum, they might be weldable, but you
might need to repeat the heat treatment after the welding.
I would think you'd want to make the weld out near the pedal end where
forces are lower.
--
StephenH
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tholub
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3 May 2008, 16:26 UTC #3

You might be better off cutting off the end, then drilling a hole and
re-tapping the pedal threads.
But the Qu-ax cranks are big hunks of metal, I'm sure welding them is
possible. Getting them really straight would be tricky; you'd have to
have good cuts, and good welding.
--
tholub
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unibikeling
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3 May 2008, 16:40 UTC #4

tholub said:
You might be better off cutting off the end, then drilling a hole and
re-tapping the pedal threads.
But the Qu-ax cranks are big hunks of metal, I'm sure welding them is
possible. Getting them really straight would be tricky; you'd have to
have good cuts, and good welding.
yeah, im sure my dad could get em straight and strong. So i'm gonna buy
those later today, but right now, i'm gonna practice some street stuff
on it with the wobbly cranks, it shouldnt hurt it at all, considering
its just gonna be unispins.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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unibikeling
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3 May 2008, 16:40 UTC #5

tholub said:
You might be better off cutting off the end, then drilling a hole and
re-tapping the pedal threads.
But the Qu-ax cranks are big hunks of metal, I'm sure welding them is
possible. Getting them really straight would be tricky; you'd have to
have good cuts, and good welding.
yeah, im sure my dad could get em straight and strong. So i'm gonna buy
those later today, but right now, i'm gonna practice some street stuff
on it with the wobbly cranks, it shouldnt hurt it at all, considering
its just gonna be unispins.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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vanpaun
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3 May 2008, 16:53 UTC #6

why dont you just weld the wobblys on
--
vanpaun
Getting good is'nt about wanting it, needing it, paying for it; its
about commiting to it. Sure, you may be able to n-spin, flip, drop; but
will you stick with it, live for it, go through pain for it. If not,
your not good. Your wasted effort. Unless you buy 661's 😄.
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vanpaun
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3 May 2008, 16:53 UTC #7

why dont you just weld the wobblys on
--
vanpaun
Getting good is'nt about wanting it, needing it, paying for it; its
about commiting to it. Sure, you may be able to n-spin, flip, drop; but
will you stick with it, live for it, go through pain for it. If not,
your not good. Your wasted effort. Unless you buy 661's 😄.
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unibikeling
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3 May 2008, 17:03 UTC #8

vanpaun said:
why dont you just weld the wobblys on
because i dont wanna kill my axel. Plus i need to take them off
eventually to paint my rim.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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unibikeling
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3 May 2008, 17:03 UTC #9

vanpaun said:
why dont you just weld the wobblys on
because i dont wanna kill my axel. Plus i need to take them off
eventually to paint my rim.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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DustinSchaap
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3 May 2008, 17:23 UTC #10

tholub said:
You might be better off cutting off the end, then drilling a hole and
re-tapping the pedal threads.
they're hollow
--
DustinSchaap
DUTCH UNICYCLIST COMMUNITY:
EENWIEL.NL (\"HTTP://EENWIEL.NL\"😉
SPONSORS:
MUNICYCLE.COM (\"HTTP://WWW.EINRADLADEN.NET/SHOP/INDEX.PHP/LANGUAGE/EN\"😉
AND QU-AX (\"HTTP://QU-AX.COM/\"😉
*Ah, but can you compress your tire like this?*
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DustinSchaap
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3 May 2008, 17:23 UTC #11

tholub said:
You might be better off cutting off the end, then drilling a hole and
re-tapping the pedal threads.
they're hollow
--
DustinSchaap
DUTCH UNICYCLIST COMMUNITY:
EENWIEL.NL (\"HTTP://EENWIEL.NL\"😉
SPONSORS:
MUNICYCLE.COM (\"HTTP://WWW.EINRADLADEN.NET/SHOP/INDEX.PHP/LANGUAGE/EN\"😉
AND QU-AX (\"HTTP://QU-AX.COM/\"😉
*Ah, but can you compress your tire like this?*
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unibikeling
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3 May 2008, 17:27 UTC #12

DustinSchaap said:
they're hollow
Yeah, i also know that. My dad said it'd work fine.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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unibikeling
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3 May 2008, 17:27 UTC #13

DustinSchaap said:
they're hollow
Yeah, i also know that. My dad said it'd work fine.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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DustinSchaap
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3 May 2008, 17:28 UTC #14

rewelding them would be fine, but you can't tap pedals in a hollow space
🙄 i dont know how it would work strengthwise, but i like the
idea.. what size are you going for?
--
DustinSchaap
DUTCH UNICYCLIST COMMUNITY:
EENWIEL.NL (\"HTTP://EENWIEL.NL\"😉
SPONSORS:
MUNICYCLE.COM (\"HTTP://WWW.EINRADLADEN.NET/SHOP/INDEX.PHP/LANGUAGE/EN\"😉
AND QU-AX (\"HTTP://QU-AX.COM/\"😉
*Ah, but can you compress your tire like this?*
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DustinSchaap
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3 May 2008, 17:28 UTC #15

rewelding them would be fine, but you can't tap pedals in a hollow space
🙄 i dont know how it would work strengthwise, but i like the
idea.. what size are you going for?
--
DustinSchaap
DUTCH UNICYCLIST COMMUNITY:
EENWIEL.NL (\"HTTP://EENWIEL.NL\"😉
SPONSORS:
MUNICYCLE.COM (\"HTTP://WWW.EINRADLADEN.NET/SHOP/INDEX.PHP/LANGUAGE/EN\"😉
AND QU-AX (\"HTTP://QU-AX.COM/\"😉
*Ah, but can you compress your tire like this?*
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unibikeling
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3 May 2008, 17:31 UTC #16

DustinSchaap said:
rewelding them would be fine, but you can't tap pedals in a hollow space
🙄 i dont know how it would work strengthwise, but i like the
idea.. what size are you going for?
Well, i'm gonna remove about an inch (2.5cm or 25mm) Making it a 145
instead of 170's. I'll probably match em to my current ones so they
dont feel too awkward.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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unibikeling
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3 May 2008, 17:31 UTC #17

DustinSchaap said:
rewelding them would be fine, but you can't tap pedals in a hollow space
🙄 i dont know how it would work strengthwise, but i like the
idea.. what size are you going for?
Well, i'm gonna remove about an inch (2.5cm or 25mm) Making it a 145
instead of 170's. I'll probably match em to my current ones so they
dont feel too awkward.
--
unibikeling
'Sixsixone.com - Great gear for all riding!' (http://sixsixone.com/)
Ducttape said:
Grrr! I think I may poo myself in Anger...

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Chexjc
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3 May 2008, 20:40 UTC #18

EDIT: Nevermind.
--
Chexjc
aim: guitardude88
http://www.youtube.com/profile?user=jasoncheckla
'SixSixOne' (http://sixsixone.com/)
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Chexjc
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3 May 2008, 20:40 UTC #19

EDIT: Nevermind.
--
Chexjc
aim: guitardude88
http://www.youtube.com/profile?user=jasoncheckla
'SixSixOne' (http://sixsixone.com/)
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