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PostPosted: Fri Dec 08, 2017 12:12 pm 
Retro Guru
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Joined: Tue Jun 25, 2013 10:47 am
Posts: 1136
I am totally aware of the fact, that more modern brakes use that system that clamps the bushing and. I have taken apart a few m951 for example. Or my Campagnolo cantilevers have that, too. You can even adjust the play on them. That's what made me think about it in the first place. :oops:

DU-Bushings would be fine, too. But there is not enough flesh anywhere to make room for a bushing like that. I think I would have to order a custom one. And I don't think I want to do that at the moment. This is all about DIY afterall. I would even like to make my own fasteners, if I was able to. But I'm not... :D


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PostPosted: Sat Dec 09, 2017 10:50 am 
retrobike rider
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
Posts: 17723
Location: Yorkshire, England
I wasn't talking modern brakes, but early 90s canti's at least.

Just an idea as you tinker and alter.

I'll also leave this here for people who need a read :-)
http://web.archive.org/web/201504041056 ... ative.html

Shame the early stuff never made it onto there.

You may be able to get Ti tubing as samples ;-)


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PostPosted: Sat Dec 09, 2017 12:52 pm 
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Thank you for the link, I had not seen that yet.

I definitely would like to make a titanium version. But my machinery is not up for that yet. I found a supplier for those titanium tubes already. They are not that expensive. Its just the tools that are..


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PostPosted: Sun Dec 10, 2017 10:32 pm 
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Joined: Tue Jun 25, 2013 10:47 am
Posts: 1136
Quick update of my progress.

Image

I made the second arm. Notice the brass bushing now is longer than my first Aluminium version and is completely covering the brake boss. I think it looks better without that gap.

Image

The springs are made out of an old spoke :D

Now I am waiting for some tools that I need to bore out holes more precise than using a simple drill.
I need to make a 12.7mm hole that will allow the brake pad holder assembly to slide over and camp on the arm. And my 13mm drill is waaay too large. ;) (Notice the shim in the first brakepad-holder... :facepalm: )


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 Post subject: Re:
PostPosted: Sun Dec 10, 2017 11:00 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Fri Jul 23, 2010 4:13 pm
Posts: 5092
Location: Royal Forest of Dean (Still looking for the Bear !)
I can't see your pics :(


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PostPosted: Sun Dec 10, 2017 11:25 pm 
Dirt Disciple
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Joined: Wed Nov 01, 2017 6:43 pm
Posts: 22
Location: Loughborough, UK
This is sick! great job!


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PostPosted: Sun Dec 17, 2017 9:59 pm 
Retro Guru
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Joined: Tue Jun 25, 2013 10:47 am
Posts: 1136
One arm ready for testing.

Image


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PostPosted: Sun Dec 17, 2017 10:22 pm 
Gold Trader
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Joined: Sat Aug 02, 2008 3:12 pm
Posts: 9127
Location: Oh Canada!
that's sweet! :shock:

but what happened to that poor Amp fork??? :?


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PostPosted: Sun Dec 17, 2017 11:17 pm 
Retro Guru
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Joined: Tue Jun 25, 2013 10:47 am
Posts: 1136
I'm rebuilding it. But I am missing a few bolts and bushes.
Or are you talking about the scrathes? No idea. That's how I got it. They will polish out. Nothing too drastic.


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 Post subject: Re:
PostPosted: Mon Dec 18, 2017 12:24 am 
Retro Guru
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Joined: Tue Mar 06, 2012 4:00 am
Posts: 507
Location: London
This is such an amazing project, I can’t wait for more updates!
People like you are majorly inspirational and I wish I had the means to do something like this myself. Keep up the good work!


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