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Brian Chapman making a bilaminate head tube

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Brian Chapman making a bilaminate head tube

Old 01-29-20, 04:33 PM
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Brian Chapman making a bilaminate head tube

Pretty cool, thought some of you might enjoy it.

https://www.flickr.com/photos/chapma...s/48007770162/
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Old 01-29-20, 04:42 PM
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I love his technique videos. He also seems to work at a maddening pace, which is a great quality if you are a one-man shop and you want to make a decent living.

If I were giving the bi-laminate thing a try, I would use a regular headtube and regular lugs, but cut the top-tube/down-tube portions of the lug to be very close to the headtube. Then I would lay the fillet over these extra-short lugs, covering the shoreline with the fillet entirely.
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Old 01-29-20, 04:48 PM
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Originally Posted by TenGrainBread View Post
I love his technique videos. He also seems to work at a maddening pace, which is a great quality if you are a one-man shop and you want to make a decent living.
Also cut himself!

If I were giving the bi-laminate thing a try, I would use a regular headtube and regular lugs, but cut the top-tube/down-tube portions of the lug to be very close to the headtube. Then I would lay the fillet over these extra-short lugs, covering the shoreline with the fillet entirely.
I did this to repair my Holdsworth/Claud Butler, only I kept both halves of the lug that broke in half. I christened the technique "sesquilaminate". It's a bit like the old French "faux épanoui".
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Old 01-29-20, 06:46 PM
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Pretty slick. I like it.
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Old 01-29-20, 07:11 PM
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My rule of thumb: Basically anything Brian Chapman does in his shop is very cool.
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Old 01-29-20, 10:23 PM
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Watching Brian's work sometimes inspires me, othertimes I just feel like giving up.

He's free with advice, nothing's a secret. As nice a guy as you'll ever meet.
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Old 01-30-20, 01:15 PM
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Originally Posted by scarlson View Post
Also cut himself!
You can't fake the hands of a framebuilder. How many times have you looked down at your hands, saw blood, and wondered "when did that happen?"
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Old 01-30-20, 02:03 PM
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If you're not following him on Instagram, you're missing some great stuff. https://www.instagram.com/chapmancycles/
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Old 01-30-20, 03:42 PM
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I am just in awe. This is a master at work!
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Old 01-31-20, 06:55 AM
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His blending of craftsmanship and an artists eye is gorgeous.
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Old 01-31-20, 08:17 PM
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Originally Posted by jeirvine View Post
If you're not following him on Instagram, you're missing some great stuff. https://www.instagram.com/chapmancycles/
Thank you for sending me down that absolutely splendid rabbit hole. It has been worth every minute

-Kurt
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Old 02-01-20, 05:11 AM
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Up in the queue soon....decisions decisions.
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Old 02-01-20, 07:32 AM
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^ Woot!
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Old 02-01-20, 08:17 AM
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Originally Posted by Vonruden View Post
Up in the queue soon....decisions decisions.
Start a thread...
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Old 02-01-20, 10:54 AM
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Originally Posted by Vonruden View Post
Up in the queue soon....decisions decisions.
What do you get for the man who has everything?

A Chapman.
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Old 02-01-20, 01:40 PM
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Originally Posted by gugie View Post
What do you get for the man who has everything?

A Chapman.
50th birthday present. This one will be the one I take to my grave, hopefully not too soon though I’m thinking City / Utility bike, possibly single speed, however I will defer most of the decisions to Brian as it’s his craft. Will start a thread once it’s time.
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Old 02-01-20, 03:18 PM
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Originally Posted by Vonruden View Post
50th birthday present. This one will be the one I take to my grave, hopefully not too soon though I’m thinking City / Utility bike, possibly single speed, however I will defer most of the decisions to Brian as it’s his craft. Will start a thread once it’s time.
What a birthday gift.

I've thought about a nice city bike and have had this one in my thoughts.

https://www.cycleexif.com/map-randonneur

or this one. https://www.flickr.com/photos/mapcycles/5094909407/
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