Macgyver Bike Tools

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Macgyver Bike Tools

Postby ghostpoet » Tue May 22, 2012 7:34 am

Cobbled together, bodged up, made on the fly or turned up beautifully on your Stepdad's lathe. If you have something that you have made to solve a problem without sepending a fortune please post a picture here so we can all learn. And possibly use ourselves to do a bit of maintenace in the future post economic apocalypse world. Coming soon, my bottom bracket cup persuader...
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by BNA » Tue May 22, 2012 9:07 am

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Re: Macgyver Bike Tools

Postby HappyHumber » Tue May 22, 2012 9:07 am

Anything like this one?

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Re: Macgyver Bike Tools

Postby Mark Kelly » Tue May 22, 2012 9:46 am

I've McGyvered a frame building jig, does that count?
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Re: Macgyver Bike Tools

Postby HappyHumber » Tue May 22, 2012 10:40 am

Poke around on instructables.com.

There's some absolutely shocking things there - but the odd gem amongst the gravel.

I've seen variations of these DIY lockring pliers with cheapie Bunnings vise grips etc; www.instructables.com/id/DIY-Lockring-Pliers/
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Re: Macgyver Bike Tools

Postby bychosis » Tue May 22, 2012 12:46 pm

Crank Remover for square taper cranks. Standard Crank puller stripped the thread on the crank, bashing/levering wouldn't work.

Enter Homemade crank remover

Unfortunately Homemade crank remover stripped the thread on the bolt (hi-tens next time?). Slot tube over crank, spanner on nut in device, tighten bolt to push out the crank (in theory)

Effective method=hacksaw to crank (as pictured) :(

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Re: Macgyver Bike Tools

Postby ldrcycles » Tue May 22, 2012 1:44 pm

I've used quick release seatpost bolts as tire levers a few times when i couldn't find actual levers.
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Re: Macgyver Bike Tools

Postby Stuey » Tue May 22, 2012 7:58 pm

Mark Kelly wrote:I've McGyvered a frame building jig, does that count?


I'd love to see photos. I've considered this myself a few times.
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Re: Macgyver Bike Tools

Postby Mark Kelly » Tue May 22, 2012 8:54 pm

I've started a thread on Bikeforums.net/framebuilders; couldn't be arsed doing it twice and this forum software is much more difficult to use.

Phots won't be up till tommorrow coz the ones I took today are bad even by my standards.
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Re: Macgyver Bike Tools

Postby lethoso » Tue May 22, 2012 8:57 pm

Chain slack maker - get an old spoke, clip the fat end off it, bend it like so: /__\ Then when fitting a new chain, put the chain on over the chainring and through the derailleur, hook one end into the back half of it a few inches in, then poke the other end into the front half of the chain about the same distance in. Now you have some slack in the chain to work with while pushing the pin in/fitting the quicklink. Simple, but handy :)
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Re: Macgyver Bike Tools

Postby ldrcycles » Tue May 22, 2012 9:11 pm

That's a fantastic tip lethoso, i'm gunna use that one the next time i build up a bike!
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Re: Macgyver Bike Tools

Postby sturmey archer » Tue May 22, 2012 9:32 pm

Ive posted this before, but here's my torque wrench..
Image

kgf(4.5kg) * Length of ball-ended allen key (.11m) = .495 kg/m = 4.81 Nm
1.370" x 24 tpi - what sort of stupid standard is that?
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Re: Macgyver Bike Tools

Postby HappyHumber » Wed May 23, 2012 9:54 am

sturmey archer wrote:Ive posted this before, but here's my torque wrench..
kgf(4.5kg) * Length of ball-ended allen key (.11m) = .495 kg/m = 4.81 Nm


:D Awesome.. but be prepared for potential backlash from the 'justify the $$$ somehow' Carbon Fibre crowd. Not using the proper tool for the job risks the downfall of Western Civilisation, you realise? ;)
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Re: Macgyver Bike Tools

Postby Oxford » Wed May 23, 2012 12:22 pm

HappyHumber wrote:
sturmey archer wrote:Ive posted this before, but here's my torque wrench..
kgf(4.5kg) * Length of ball-ended allen key (.11m) = .495 kg/m = 4.81 Nm


:D Awesome.. but be prepared for potential backlash from the 'justify the $$$ somehow' Carbon Fibre crowd. Not using the proper tool for the job risks the downfall of Western Civilisation, you realise? ;)

LOL, yes civilisation is coming to end now.

Like the outside the square thinking, will use that one.
I could agree with you, but then we would both be wrong.
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Re: Macgyver Bike Tools

Postby Stuey » Wed May 23, 2012 2:49 pm

lethoso wrote:Chain slack maker - get an old spoke, clip the fat end off it, bend it like so: /__\ Then when fitting a new chain, put the chain on over the chainring and through the derailleur, hook one end into the back half of it a few inches in, then poke the other end into the front half of the chain about the same distance in. Now you have some slack in the chain to work with while pushing the pin in/fitting the quicklink. Simple, but handy :)


I wondered what the bit of bent wire was that I got with my Topeak chain breaker. I thought it was just to put through the two end links to keep it out of the dirt until you joined it.
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Re: Macgyver Bike Tools

Postby Mulger bill » Wed May 23, 2012 9:51 pm

Chain hook is a great idea, been using one for years.
I made my chain whip out of some 1" wide flat bar steel and 50cm of old chain, drill 3 holes in the right spot and you're nearly done. Total cost about 5" labour.
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Re: Macgyver Bike Tools

Postby ldrcycles » Wed May 23, 2012 10:08 pm

Mulger bill wrote:Chain hook is a great idea, been using one for years.
I made my chain whip out of some 1" wide flat bar steel and 50cm of old chain, drill 3 holes in the right spot and you're nearly done. Total cost about 5" labour.


Same :D , mine is seriously ugly but it's been doing the job for about 3 years now :) .
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Re: Macgyver Bike Tools

Postby Stuey » Wed May 23, 2012 10:10 pm

5 inches of labour? Oo-er!

(yeah, I know....)

For a chain whip, I just use locking pliers (Mole grips) and wrap an old chain around the sprocket, then as close as possible to the sprocket, lock the grips onto both sides of the chain.
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Re: Macgyver Bike Tools

Postby HappyHumber » Wed May 23, 2012 10:21 pm

I can't find a pic now, but somewhere off the net at some stage I got the idea to make a chain whip out of old a single fork blade and length of chain. I just found a nail beefy enough to thread through the old mudguard eyelet & chain rivet hold, cut it with a about a mm or so protruding either side and then mashed over the ends a bit with the ol' bogan multi-tool (4lb sledgie)
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Re: Macgyver Bike Tools

Postby Mark Kelly » Wed May 23, 2012 10:23 pm

Stuey wrote:
Mark Kelly wrote:I've McGyvered a frame building jig, does that count?


I'd love to see photos. I've considered this myself a few times.


The thread on Bikeforums now has some phots, more to follow in the next couple of weeks.

Not sure how the mods go with hotlinking to another forum so for now you'll have to navigate for yourself.
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Re: Macgyver Bike Tools

Postby HappyHumber » Wed May 23, 2012 10:49 pm

Mark Kelly wrote:Not sure how the mods go with hotlinking to another forum so for now you'll have to navigate for yourself.



I like living life on the edge. So here ya go :
http://www.bikeforums.net/showthread.php/820121-The-Mathematicians-Frame-Jig

You need a login to view the pics, however.
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Re: Macgyver Bike Tools

Postby ghostpoet » Thu May 24, 2012 1:59 am

Happy Humber wrote,
bogan multi-tool (4lb sledgie)


Good one Humber, this one made me laugh hard enough to wake the dog up, which went nuts barking, which woke young Charlie, which got me a nice scolding from my darling wife. :( I was going to give you my 23 inch sq 5 Swan, but not anymore...
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Re: Macgyver Bike Tools

Postby Stuey » Thu May 24, 2012 3:07 pm

Mark Kelly wrote:
Stuey wrote:
Mark Kelly wrote:I've McGyvered a frame building jig, does that count?


I'd love to see photos. I've considered this myself a few times.


The thread on Bikeforums now has some phots, more to follow in the next couple of weeks.

Not sure how the mods go with hotlinking to another forum so for now you'll have to navigate for yourself.


Cheers
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Re: Macgyver Bike Tools

Postby visrealm » Thu May 24, 2012 4:49 pm

Seems making your own chain whip is pretty common - here's one I prepared earlier... :)

Image

Works a treat
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Re: Macgyver Bike Tools

Postby }SkOrPn--7 » Thu May 24, 2012 7:17 pm

visrealm wrote:Seems making your own chain whip is pretty common - here's one I prepared earlier... :)

Image

Works a treat


Plus you can measure your chain for wear all in one tool. :D
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Re: Macgyver Bike Tools

Postby Mark Kelly » Fri May 25, 2012 10:02 pm

For those interested, I just posted the 2nd slice of the frame jig on bike forums. Third slice maybe Sunday.
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