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-   -   Building a Mixte (http://www.bikeforums.net/framebuilders/630521-building-mixte.html)

Cassave 03-22-10 10:03 AM

Building a Mixte
 
Since it's been a while since I built a frame and since my wife has been hinting about doing a little more riding I figured it's time to build her a new bike. It's my first shot at a mixte and it's
coming out pretty good.

Nova CroMo butted tubeset, Everest crankshell and LS lugs. (package deal for $127, not bad)
1/2 x .035 4130 for the twin top tubes. The intermediate stays are
14mm tapered seatstays joined to the 1/2" tubes abeam the seat tube.
Upper head lug and seatlug started out as normal diamond frame lugs, now with the TT sockets
cut away and steel plates brazed into the openings.

Next come bridges, cable stops, eyelets etc. Fork gets built next week.

Final setup will be 700C wheels, SA 3sp. hub, upright bars, a stainless rear rack and
a kick stand (another first).

A few pics to start;

http://i1145.photobucket.com/albums/...ave/mixte3.jpg

http://i1145.photobucket.com/albums/...ave/mixte1.jpg

http://i1145.photobucket.com/albums/...ave/mixte2.jpg

http://i1145.photobucket.com/albums/...ave/mixte4.jpg

http://i1145.photobucket.com/albums/...ave/mixte5.jpg

http://i1145.photobucket.com/albums/...ave/mixte6.jpg

mudboy 03-22-10 10:43 AM

Beautiful. How about an "aft" picture of the top head tube lug? I think the only things I would have changed would be a plate for the kickstand rather than the reinforcements, and full rack/water bottle mounts.

Nice work.

Pete

tuz 03-22-10 10:51 AM

A beauty! Thanks for sharing.

Funny my *first* build (arrgh can't wait to start) will also be a woman's frame, although fillet-brazed (except BB) and with a slanted 1" TT.

What did you use to replace the cut off sockets of the upper head and seat lug? Love the sleeved joints for the middle stays, and the kickstand plate!

Cassave 03-22-10 11:08 AM

Quote:

Originally Posted by mudboy (Post 10560609)
Beautiful. How about an "aft" picture of the top head tube lug? I think the only things I would have changed would be a plate for the kickstand rather than the reinforcements, and full rack/water bottle mounts.

Nice work.

Pete

I'll take more pictures as I go along.
The kickstand plates are stainless. There are 3 3/16" stainless pins brazed through the chainstays with about 1/8" extended out the bottom. The kickstand itself contacts the pins, placing them in compression against the upper plates.
This isolates the stays from clamping forces, should work nicely.

Full bosses and eyelets are on the way, after the brake, seat stay and top tube bridges.

squirtdad 03-22-10 11:10 AM

Beautiful....I see this and I really want to try building a frame....... I can see my wife rolling her eyes now :)

Cassave 03-22-10 11:25 AM

Quote:

Originally Posted by squirtdad (Post 10560726)
Beautiful....I see this and I really want to try building a frame....... I can see my wife rolling her eyes now :)

Build a bike for her. It's a win win.

unterhausen 03-22-10 12:36 PM

do you have clearance at the rear on the mixte stays?

Cassave 03-22-10 12:41 PM

Quote:

Originally Posted by unterhausen (Post 10561149)
do you have clearance at the rear on the mixte stays?

Not sure what you mean? Clearance for what?

unterhausen 03-22-10 12:44 PM

the chain

Really nice build too. I wouldn't mind seeing what you did to the top head lug

unterhausen 03-22-10 12:44 PM

the chain

Really nice build too. I wouldn't mind seeing what you did to the top head lug

Cassave 03-22-10 01:45 PM

Quote:

Originally Posted by unterhausen (Post 10561186)
the chain

Really nice build too. I wouldn't mind seeing what you did to the top head lug

Fitting with a 10 speed cassette on a Record hub, it's close but this bike is built for a SA S30 hub, plenty of chain clearance there.

squirtdad 03-22-10 05:05 PM

Quote:

Originally Posted by squirtdad (Post 10560726)
Beautiful....I see this and I really want to try building a frame....... I can see my wife rolling her eyes now :)

Quote:

Originally Posted by Cassave (Post 10560791)
Build a bike for her. It's a win win.

That would get a double eye roll...... there is some history about a bike, in the rain, with bad brakes at UCSB that has her less than bike enamoured......I do get her out on the cruiser some times.

rodar y rodar 03-23-10 09:08 AM

Goodness gracious! That`s a beauty, allright! I`d put on a skirt and throw a hairy leg over it any day. Seems to me somebod yhad a thread asking about mixte lugs a while back- wonder if he/she`s still looking?

velonomad 03-23-10 09:40 AM

Very nice! I like the plug you made to fill the top tube port on the seat lug.

unterhausen 03-23-10 11:42 AM

Quote:

Originally Posted by rodar y rodar (Post 10565228)
Goodness gracious! That`s a beauty, allright! I`d put on a skirt and throw a hairy leg over it any day. Seems to me somebod yhad a thread asking about mixte lugs a while back- wonder if he/she`s still looking?

no, he had a bike built. I think he really wanted a set of mixte lugs, didn't want bilaminate construction or modified lugs

Cassave 03-26-10 09:30 AM

Brazed the bridges, cablestops and bottle bosses.
Built up the rear wheel on the Sturmey hub, next is the fork.

http://i1145.photobucket.com/albums/...ave/mixte7.jpg

http://i1145.photobucket.com/albums/...ave/mixte8.jpg

http://i1145.photobucket.com/albums/...ave/mixte9.jpg

intheways 03-26-10 12:18 PM

Awesome work! I've been thinking of building a similar frame for my wife with geometry optimized for 650B

mudboy 03-26-10 06:59 PM

Damn you people and your Gran Compe centerpulls! Why must you taunt me so?

Very nice job.

big john 03-28-10 02:23 PM

Looks great, Cassave. Can't wait to see the finished product.

mkeller234 03-29-10 01:32 AM

Wow, very nice. There are a lot of great personal touches, your wife is a lucky woman.

Cassave 03-29-10 09:38 AM

Quote:

Originally Posted by mudboy (Post 10583079)
Damn you people and your Gran Compe centerpulls! Why must you taunt me so?

Very nice job.

They're pretty but honestly, they're a pain to set up and unless everything is perfect they sqeal pretty bad.

Update;

Frame is finished, all brazing and facing complete.
Started the fork yesterday, bent the blades, brazed the tips, brazed crown to steerer.
Tonight I'll trim the blades, fixture everything and braze them to the crown.

Then on to the rear rack, before paint......

Cassave 03-30-10 09:08 AM

Finished the last items on the frame, bosses for the rear rack and
built the fork last night. Tonight I'll start the rack itself.

http://i1145.photobucket.com/albums/...ve/mixte12.jpg

http://i1145.photobucket.com/albums/...ve/mixte10.jpg

http://i1145.photobucket.com/albums/...ve/mixte11.jpg

Allen 03-30-10 11:17 AM

In the first set of photos (on my computer) the frame looks like it is a metallic teal color.
I think it looks really good and am going to suggest that as a color when you come to paint.

Cassave 03-30-10 11:59 AM

Quote:

Originally Posted by AllenG (Post 10598445)
In the first set of photos (on my computer) the frame looks like it is a metallic teal color.
I think it looks really good and am going to suggest that as a color when you come to paint.


Well, you're not too far off. The current thinking is a very pale metallic blue with cream headtube, DT and ST panels and gold lug lining.

That green came from the camera auto white balanceing against the red tile background.

alicestrong 03-30-10 01:31 PM

That's just beautiful!! Awesome work...

Make sure to share here...:)


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