I am a frame builder AMA

Interestingly I had an issue with a shimano rotor a few months ago, I nearly rewelded the bosses on a frame until I thought to try a different rotor first. It was over a mm too long, have no idea how it had happened. Was for @Dammit so I just turned it down, but maybe meaure the rotor centre lock depth from rotor centre before burning anyhting ;)

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Put disc brake wheel in, clamp caliper to rotor and see if fits.

However you want to thoroughy check the frame is up to having stuff added to it.

The rotor doesn't rub on the mount bosses it just gets very close. The only rubbing was the 6 bolt adapater on the bottom of the fork. I can mount the caliper and spin the disc ok

Ah ok, must just be the perspective. New lock ring should sort it no hassle.

First thing I thought

I wonder what happens if the rotor escapes the chuck

Not much, and nothing worth worrying about particularly if you're wearing safety specs. It doesn't weigh very much, so if it does come off there's not much energy to dissipate. Spinning big heavy things in a lathe is far more dangerous if they come loose.

It's held very tight with the internal jaws, although you can't see it. Also, as Dan says it wouldn't be very exciting if it did jump out as theres nothing too it. I was once turning down a fork crown as I don't have a 1 1/4" cutter and the VFD had a shit fit and turned itself to 11, the bed tried to rip itself from the cabinet in the time it took me to remember which button was the emergency stop. Turned out it was the bike one which I wrote EMERGENCY on. Who knew?!

Hello,

I need to ream and face the bottom of my headset, on the frame I built. It should fit a EC44 headset, does anyone know where I can either buy the required reamer and facer online? Struggling to find anything available in the uk.

At the community bicycle workshop im pretty sure we have a cyclus tool with a 1 1/8 facer/reamer. So it would need to fit that.

Ceeway can sort you out

Only one I know is the park one, which won't fit your cutter. Sure it's worth buying a cutter rather than just paying someone to do it?

Icetoolz do a 44mm cutter. Pretty sure I've got one sitting in a box somewhere at home. I don't know if an Icetoolz cutter would fit the Cyclus tool though - I suspect not, as they tend to be very similar to the Park units, albeit not quite the same quality.

It is actually a Unior reaming facing tool we have at becycle.

I know I bought it :)

Not sure if that helps with the Park or IceToolz cutter working with it though

Nobody owns the required cutter..

It's actually Unior, I found this
https://www.merlincycles.com/cyclus-spare-head-tube-reamers-93664.html?utm_campaign=googlebase-GB&utm_source=googlebase&utm_medium=shopping&utm_term=Workshop+Tools&ucpo=34208&gclid=EAIaIQobChMI_d2sio_41wIVCxIbCh1kogYuEAQYBSABEgKhOPD_BwE

Couldnt find a unior one, so i guess the question is will it fit..

I do ;)

Feel free to send it up to Aberdeen then ;) #lfgsscommunitytoolshare

Is it worth fixing front end damage?
Had a collision today and now there's a small bend under the top and down tubes.
Would straightening it out weaken the steel?

If it's creased it's probably for the bin. In all liklihood if it was gas pipe or similar you could ride it for years and it wouldn't fail, anything nicer and you're doomed. Ask @hoops what happened to his first Talbot after he crashed into a mtb'er.

It will also have messed with the geo, so expect it to ride weird.

You won't be able to straighten it as it would require a large amount of force, and would leave a far weaker area behind.

If you like the frame, contact Winston Vaz of varona Frameworks (of dad fame) who can repair easily.

I'm afraid that the post brexit zip wire for goods and services won't be installed in time ;)

Yeah, I crashed my OG Talbot ISP into the back of a MTB’r who hopped off a curb into the road right in front of me when I was doing 30 odd kph.

Frame looked ok on first inspection, but after two or theee rides a huge ripple appeared on the underside of the downtube where it meets the head tube. Prolly would have failed catastrophically if I had kept riding it. Luckily I’m good friends with a certain forum framebuilder, so he just built me a new one

I now use the original frame as a donkey to test new paint products on. It’s probably got about 30 odd coats of lacquer on it by now!

Thanks for the quick reply, I thought as much but I love the frame. The twunt decided to ride across the road from the opposite direction and infront of a bus. I was alongside the bus so didn't see him.

Yes Hoops, been a while. I'd like one of those pretty frames but can't afford now with Xmas around the corner.

It will also have messed with the geo, so expect it to ride weird.

A friend of mine has a gaspipe special he crashed and steepened the head angle by many degrees. Big ripples in the downtube and toptube. That was many years ago, and he's still riding it. Loves the way it handles too.

Does anyone use anything other than Acetylene or Propane?
I’m thinking of stuff like the SGS Gas Pro Fuel and others like it.
I was wondering how it compares to Acetylene.
Then I saw this article on the HobbyWeld website which put me off.

You won't be welding though, just brazing. If it was me I'd go for acetylene if I can get it, propane if I couldn't. The benefit of propane is if you run out you can get another one with total ease.