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C&V Inspired: I made a frame

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C&V Inspired: I made a frame

Old 08-07-16, 02:34 PM
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smallpox champ
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C&V Inspired: I made a frame

I decided to make a frame several years ago now, slowly accumulating the knowledge, tools, and skills to do so. It took a long time, often neglected, with mistakes, but lessons learned. In retrospect I would wholly recommend a class to those interested.

My first result is a rather crude (rusty from sitting), but standard frame, very similar to a vintage trek. It was meant more to be a test to make something rideable, using low end modern components. The result was surprisingly great, plush, lively, and solid. Made better by knowing you've made it, and it tracks straight and true as any bike. I thought I'd share for anyone interested.










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Old 08-07-16, 02:39 PM
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Very nice! Color me impressed.
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Old 08-07-16, 02:50 PM
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Very cool, this is certainly on my bucket list. Did you use a jig?
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Old 08-07-16, 02:51 PM
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Now that you know it rides well, get it painted and get some nice parts on there!
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Old 08-07-16, 02:57 PM
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That's badass. Great work!
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Old 08-07-16, 03:04 PM
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Very nice work! Is that silver brazing? What type of tubing did you use?
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Old 08-07-16, 04:00 PM
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Originally Posted by realsteel View Post
Very nice work! Is that silver brazing? What type of tubing did you use?
No, not silver. Silver is , well,... silver in color.

Looks like some form of brass filler material to me.
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Old 08-07-16, 04:01 PM
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AWESOOOOMMMMEEE!


I'm not sure why but it makes me think of a Viscount frame - the angles,... the geometry overall. There's something about it that says to me Viscount!
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Old 08-07-16, 04:30 PM
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Beautiful. Brazing looks better than what's under many of my bikes' paint. Looks cool bare too.
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Old 08-07-16, 04:36 PM
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Incredible, awesome, and knowing it rides like a champ, fantastic! Details! How, what, did you take a class or do it on your own...

Originally Posted by Bad Lag View Post
No, not silver. Silver is , well,... silver in color.

Looks like some form of brass filler material to me.
Naw, that's silver brazed except around the dropouts. Anytime you need to fill a large gap, brass is the way to go.
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Old 08-07-16, 11:06 PM
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Thanks all.

@sloar I did not use a jig, just surface plate, blocks, and pinned lugs.

@Bad Lag, gugie is right, it's 56% silver for the lugs, and 45% for the braze-on's, which is slightly more yellow.

@realsteel I used a basic "light" tube set from here: ROAD TUBESET 8/5/8 TT AND DT :: TUBE SETS :: Nova Cycles Supply Inc.
With 16mm stays and round chainstays. The complete frame is 1920g, and the fork 700g.

@gugie I did it with the guidance of the wealth of information available online from generous people. Many pdf manuals, image galleries, youtube videos, and forum posts. After some coaching with the torch, the rest was research and practice, cutting tubes with a hacksaw and files, and figuring out what tool should be the next purchase. Originally I practiced fillet brazing, wanting to make a fast fat 26er, but after practicing with silver decided to make a traditional frame first. This frame used a surface plate and tube blocks to line up the main triangle. The lugs were bent and fit, then drilled and pinned while the tubes were clamped down to the plate, and the joint brazed on the work stand. The rear triangle was hung over the edge of the plate and a dummy axle held like so:


The fork needed a makeshift jig which resulted in it being slightly off spec, my next purchase will be aluminum extrusion to make a proper fork jig.
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Old 08-07-16, 11:20 PM
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Originally Posted by gugie View Post


Naw, that's silver brazed except around the dropouts. Anytime you need to fill a large gap, brass is the way to go.


LOL! Which was where I looked to check on the filler used.


No matter, it is still awesome!
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Old 08-08-16, 07:50 AM
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That is a good looking frame, way better than my 1st (and up to now only) frame.
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Old 08-08-16, 08:36 AM
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Very very nice. Did you bend the fork blades?
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Old 08-08-16, 09:02 AM
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So simple, so sweet.
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Old 08-08-16, 10:47 AM
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That is very impressive. I hope to learn how to do this in the future once I have more time free of obligations. I hope that you update us with photos once it is painted (that is if you go that route).
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Old 08-08-16, 11:13 AM
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Fantastic. Can you describe what pinning lugs is?
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Old 08-08-16, 11:34 AM
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Looks great, man! Good job!
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Old 08-08-16, 12:58 PM
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Me Likey!!!
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Old 08-08-16, 02:31 PM
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Nicely done! That looks like an excellent first effort.
You'd better start working on a response for the inevitable "what kind of frame is that??" that you'll hear from now on.

I built a Mixte for my wife using that same Nova tubeset, some think it comes from the Dedacciai mills.
If you're like me that hardest decision will be color..
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Old 08-08-16, 02:48 PM
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Great looking frame, very much in the classic design style. Even your choices for the current components look good on it. As nice as it looks, I'd be for getting it painted soon, maybe something with contrasting panel on the down tube, and the same for the head tube, kind of a modern take on the classic British frames of the past.

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Old 08-08-16, 03:10 PM
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Really cool.

Paint it dark green.

With Salmon head tube and bands.

Or, whatever.
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Old 08-08-16, 04:08 PM
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Did you follow the design of another bike?
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Old 08-08-16, 05:03 PM
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Thanks again all!

@paulkal I wouldn't mind seeing your effort if you felt like sharing.

@Classtime yes, after trying several quick and cheap methods I settled on buying a nice bender: FORK BENDER - HAMMILL ENGINEERING WITH 10 INCH MANDREL :: TOOLS :: Nova Cycles Supply Inc.

@Cassave ah yes, I do need to work on a concise response! I hadn't heard that about Dedacciai.

@noglider I didn't exactly intend it, but ended up fairly closely matching the geometry of a vintage Trek, 73 degree seat and head angle, 56cm seat and top tube, 43cm chainstay, 55mm fork rake. I had many crazy ideas, but rather than push the envelope I stuck closely to the angles of the lugs and that was the result.

Pinning lugs is an older method of holding a joint together to be brazed outside of a jig. I'm not exactly an expert, but basically after the lug and tubes are fit up together at the right angle, in a jig, you can drill through them both on opposing sides of each tube and hammer in nails, and the joint will be held aligned after you remove the assembly from the jig. The pins I used come with a nice tutorial: Our Famous ?Pin Kit? « Cycle Design

And here's a pic of the pins still sticking out after brazing in the chain stays
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Old 08-08-16, 05:18 PM
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Absolutely love it. If it was mine I would just clear coat it.
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