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From: Peter Ceresole on 11 Mar 2010 06:10 Jaimie Vandenbergh <jaimie(a)sometimes.sessile.org> wrote: > >So how *do* you hold an alloy frame tightly without damaging it? > > Softwood shims in the vice, usually. That, or lead jaws? I've still got a set of those with the Record we have in Geneva. -- Peter
From: T i m on 11 Mar 2010 07:14 On Thu, 11 Mar 2010 09:59:24 +0000, peterd.news(a)gmail.invalid (Pd) wrote: >T i m <news(a)spaced.me.uk> wrote: > >> Before that it was at my mates cycle shop and me advising them to (and >> how to) hold the mostly stripped ally frame of a very expensive MTB in >> their vice 1) without damaging it and 2) holding it firm enough to be >> able to twist it > >Those Motor Torpedo Boats are devils to grip securely. Tell me about it (no, please don't). ;-) [1] >So how *do* you hold an alloy frame tightly without damaging it? Well they started to hold the headset minus forks in the adjustable (doh) bike stand and I said (as they started to do it) 'that they wouldn't be able to apply sufficient torque to the frame by holding the headset in a (lockable) swivel clamp on a free standing stand'. That didn't stop them trying of course (bless) and lo-and-behold everything moved all over the place. ;-) I had previously suggested they use the fairly substantial vice I'd already clocked was bolted to the substantial bench with either 'Soft Jaws' (I hadn't seen any and wasn't hopeful), some wood or failing that several layers of cardboard. One of them dug out a couple of bits of ply and I opened the vice jaws to the length of the head tube but even that wasn't a big enough clue as they offered the headset into the vice vertically. This would of course mean the (ally) headtube would likely to get crushed so I got them to swing the frame 90 deg and I nipped the head tube inbetween the bits of wood (holding it in it's strongest / stiffest plane). Held thus they could easy twist the frame via the seat tube and it clicked every time. [2] What I will give them their dues for is taking on an existing and opening another cycle shop in this economical climate! Cheers, T i m [1] We (wife and I) were in that area to help an old family friend of hers sort out his finances and get him a haircut. When we popped in to him last I noticed a model of a MTB (the boat not the bike this time) and it turns out he was in the crew of one during WWII. Like many people his age he could recall every tiny (yet interesting) detail of his time in service but couldn't tell you if he'd had his lunch or not. [2] It turns out it was second hand to the owner and out of warranty in any case but the makers (Orange) offer a 25% discount on any frame under their 'crash damage scheme'. Whilst 25% is quite a bit of cash off a �750 frame ... ;-(
From: Jaimie Vandenbergh on 11 Mar 2010 07:47 On Thu, 11 Mar 2010 11:10:28 +0000, peter(a)cara.demon.co.uk (Peter Ceresole) wrote: >Jaimie Vandenbergh <jaimie(a)sometimes.sessile.org> wrote: > >> >So how *do* you hold an alloy frame tightly without damaging it? >> >> Softwood shims in the vice, usually. > >That, or lead jaws? I've still got a set of those with the Record we >have in Geneva. I wouldn't use lead jaws against painted surfaces, but it's a good option for bare metal. Cheers - Jaimie -- "If you can't make fun of it, it's probably not worth taking seriously" -- http://survivingtheworld.net/Lesson494.html
From: Phil Taylor on 11 Mar 2010 08:35 In article <ktjhp5tq33koieavqonl1sof25h0vs2sc2(a)4ax.com>, T i m <news(a)spaced.me.uk> wrote: > What I will give them their dues for is taking on an existing and > opening another cycle shop in this economical climate! Bike shops have been doing a roaring trade recently. Some businesses thrive during a depression (undertakers, accountants) and bike shops appear to be one. Two of my children work in a bike shop, including my daughter who has a first class honours degree in English and Celtic languages from Edinburgh University, but really prefers to use her hands to make her living. At least she can discuss the technicalities of frames and fittings with her Gaelic-speaking customers. Phil Taylor
From: Rowland McDonnell on 11 Mar 2010 12:25
T i m <news(a)spaced.me.uk> wrote: > peterd.news(a)gmail.invalid (Pd) wrote: > > >Rowland McDonnell <real-address-in-sig(a)flur.bltigibbet.invalid> wrote: > > > >> In short, you could get somewhere with the manual because you're a > >> highly educated, highly trained technical specialist > > > >Sorry, are we talking about T i m here? <weg> > > But don't forget it was Rowland saying it. ;-) Your meaning? > However, he's mostly right about the outcome though ... the "call Tim > , he'll know how to fix it" thing. Rowland knows a lot of stuff - and Rowland gets pissed off that you seem to think it's perfectly acceptable for people like the odious Pd to follow me around making snide comments directed at me to ensure that my reputation remains at rock-botton. Where is lies purely because of the constant trickle of personal abuse and personal niggling I get from shits like Pd and the other semi-trolls infecting this place. > Today it was a 70 year old Italian ex nurseryman and his get to house > intercom system working <shrug>. > > Before that it was at my mates cycle shop and me advising them to (and > how to) hold the mostly stripped ally frame of a very expensive MTB in > their vice 1) without damaging it and 2) holding it firm enough to be > able to twist it to see if the 'click' was just down to the frame or > some other component (it was the frame). > > To me it's (well, those things) all pretty obvious stuff? You're not getting the idea here. Real life stuff is easy for anyone with a brain to cope with. The computery stuff is hard. Any fule can do the real life stuff you've just bragged about. I know I can. Rowland. -- Remove the animal for email address: rowland.mcdonnell(a)dog.physics.org Sorry - the spam got to me http://www.mag-uk.org http://www.bmf.co.uk UK biker? Join MAG and the BMF and stop the Eurocrats banning biking |