All these bloody framebuilders eh

yeah for sure im really excited... just gotta wait till the apocalypse is done

Love this thread!

Looks good dude. Have you got any heat sinks?

Thanks :)

yeah, i made some really beefy ally ones for the headtube. Which made a difference on this frame as the HAZ is smaller than frames in the past. i want to purge the next frame so gonna have to do some fiddling to get them purgable :)

I have had time to do this yet. But it is exactly what I want to do as well

Theres also this guy who apparently makes pretty decent purging heatsinks

https://www.ebay.co.uk/itm/Heat-sinks-for-bicycle-framebuilding-for-seat-tube-head-tube-and-bottom-bracket/223954411490?hash=item3424b91fe2:g:FL8AAOSwEP5d0CHa

I ran into rob quirk at regents like 2 months ago and couldnt help but quiz him about a few things. Hes just transitioning to tig. He had bought heatsinks from this ebay guy and really rated them. And much cheaper than buying sputnik or other ones.

Machining looks quality! Great item looks extremely well engineered

Thanks for that. Looks good for the money.

I'll make something from what I have for now. Got to save some money up :(

yeah they look really nice

yeah its decent pricewise but still a chunk of change if you want a few

So this next one has this big 42mm dt which is slightly an issue because it is wider than a standard bb shell. I wasn't sure what to do at first, someone on reddit suggested a good idea of squidging the end using a 3d printed block/squidger. He linked his insta and he does cool stuff, worth the follow.

https://www.instagram.com/colin_woof/

so i printed this block that has a 42mm circle at one end and an appropriately shaped ellipse on the other, then put it in the vise and squidged it. It worked well, i mitred the tube and all fit up really nice. I find the big tubes annoying to mitre by hand, but it all was going fine until i dropped the tube on my bench :(.

Ended up getting off kind of lucky, no dents, only a tiny nick/scrape. It really pissed me off...how could i be so stupid etc. Anyways I ended up just brazing a little steel heart over it. I'm sure the nick doesn't affect anything structurally, I reckon it was barely 0.15mm deep.
The heart covers it aesthetically, tho i'm not sure the nick would show after paint anyway, and also gives it a bit of reinforcement which is good too, not that its necessary.

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A bit of brass/silver could also have sorted it and the sanded down to make tube round

I am hoping to make some out of chunky tubes of aluminium and brass I have laying around

These are what i made, very basic but they do the job. Not sure how they will fair with purging but we'll see.

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I like to leave a fair bit of threaded rod poking out its useful to have lots of places to put the ground clamp

The next one is coming along nicely, only seatstays left to do.

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pics

BB shell is the wrong way round

;)

Haha goddammit now I gotta check, ive already put one in back to front.

Phew! Almost had me, some of the shells I've used in the past have been marked, and others aren't, so it gets extra confusing

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It’s my perpetual fear

I did it on one of the first frames i built, in the end it wasnt such and issue because i used hollowtech bb and it all worked out. However could end badly depending on what bb ends up being used. I guess some would unscrew?

Well track frame is now done, happy with how it came out. Now i just gotta figure out paint for them both. I emailed Steve at Aurum to see if he was still powdercoating at the moment, and he is. Which is good. Im not totally set on a colour yet, but the draw of hot pink is significant and i cant get RAL4010 out of my head.

For some reason matching hot pink road and track frames gives me the warm fuzzies so i reckon that might be the plan.

Im slightly hesitant on the painting front, with the whole lockdown thing obviously painting bikes is not a vital journey. I feel like i'm letting the side down in a way, however realistically i'm not really gonna come into contact with anyone that i cant socially distance, so idk.

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