Ok, moving on. Starting to look like a bicycle frame.
The chainstays and chainstay bridge fixtured, fluxed and ready to braze.
Brazed and cleaned, ready to file.
Nice. Done with all the heat in this area so I'll chase the crankshell
Here's the bottom bracket tapping tool. Set up with English taps,
left side= right hand thread, right side = left hand thread.
Cleaning the threads of excess brazing alloy.
Threads ready for a bottom bracket, I'll face the ends last, just before
Now on to the seat stays and brake bridge.......
Last edited by Cassave; 02-20-12 at 10:21 AM.
Great posts! So very interesting, and much appreciated.
What do you think about the stainless steel tubesets, like the Columbus XCr tubeset used by Pegoretti for his Responsorium? Do you think this material has utility, and how hard is it to use stainless vs. regular steel tubesets?
It was designed as a forging alloy, not for drawn tubes. The materials are fine to work with,
but a bit tougher on cutters due to the high nickel and chromium levels. Brazing is no problem
with the right fluxes.
I don't have the time nor the skills to do anything close to this, but thank you just the same for a very informative thread.
The work progresses. I finished the rear triangle.
The one spot that framebuilders typically try to make a signature design is
the seat cluster. It's a very low stress location on diamond frames so it offers
a lot of possibilities for variation. The design I prefer is the one here. I've
built several frames with the same very clean modified fastback design.
Fitting up the stays. Some profiling still to be done.
The fairly complex shape that needs to be filed into the top of the seat stays.
Fluxed and ready to braze.
Brazed and cooling.
There, cleaned, filed and showing the finished brake bridge as well.
Added the front derailleur boss and two pair of bottle bosses as well.
Next, on to the small braze-ons. Cable stops and guides.
Last edited by Cassave; 02-20-12 at 10:26 AM.
Following progress. Looking good!
just outstanding and the process with the pictures is really super-cool.
"Advantages Must Be Pressed, Disadvantages Must Be Overcome"
This has got to be one of the coolest most worthwhile threads I've ever seen on here.
If you don't have anything nice to say about anybody, then come sit next to me.
Only the fixed side cup actually interfaces with the end of the BB shell. The non-drive side
cup sits inside the thing with the end of the shell showing.
I just take a razor blade and remove the paint on the end of the fixed side before installing the
Are you using one of Henry James' frame jigs?
This is a great thread. Thanks!
I love that seat cluster, beautiful work.
+1 on the seat cluster. That is beautiful. Can't wait to see the paint scheme. Any thoughts since the last time you commented? Wet or powder? If I remember the lugs are going to be polished right?
I thought of that while riding my bicycle. ~ Albert Einstein on the theory of relativity
Beautiful! My kind of bikey!
May you live long, live strong, and live happy!
C'mon, man...ease up! this is like freakin' torture! Home-made tooling, an original design where allowable (seat cluster), all steel construction, polished stainless lugs, wet pai....
Sorry, I have to go wipe myself now.
But seriously, will there ever be a right price for it??? Please?
A few more shots from last evening.........
The brake cable guides brazed to the top tube.
A close up of one, the flux starting to crack as it cools.
And the rear derailleur cable stop (on the bottom of the driveside chainstay.
Next come some homemade parts; chain hanger pin, shifter cable stops
and stainless wire bottle cages (similar to Nitto). Stay tuned...
Last edited by Cassave; 02-20-12 at 10:28 AM.
Is it wrong that I'm almost as equally impressed that you're making your own cages as I am about the frame itself?