#1
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Hi all,
It's been a few years since I built my current roadie, but recently we moved to larger premises (where the car gets its very own bit of driveway, rather than filling up the garage), so here's the result so far http://www.flickr.com/photos/suzy_j/5431195457/ So I guess little fish bicycles is back in operation Cheers, Suzy |
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#2
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On Wed, 09 Feb 2011 18:41:41 -0800, suzyj wrote:
Hi all, So I guess little fish bicycles is back in operation Geez, you need to find a better framebuilder - your one leaves out the seat stays! Good to see you back here, and still playing about with bikes. Still riding the fixie up Fullers Rd? -- Dave Hughes - "There are some benefits to high blood pressure", Bob mused as another mosquito exploded. -- unknown, Bulwer-Lytton entry |
#3
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On 10/02/2011 1:41 PM, suzyj wrote:
Hi all, It's been a few years since I built my current roadie, but recently we moved to larger premises (where the car gets its very own bit of driveway, rather than filling up the garage), so here's the result so far http://www.flickr.com/photos/suzy_j/5431195457/ So I guess little fish bicycles is back in operation You are actually MAKING your own bicycle? Wow!! I dips me lid to yer You also mentioned soldering on the flickr site whilst I am thinking that welding would seem more appropriate. Maybe I am thinking of what I have seen on mountain bikes. |
#4
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On Feb 11, 2:54*am, Geoff Lock glock@home wrote:
You also mentioned soldering on the flickr site whilst I am thinking that welding would seem more appropriate. Maybe I am thinking of what I have seen on mountain bikes. Welding is a process where the actual metal of the tubes is heated to melting point to make the join. Brazing and soldering (we generally use the term soldering when working with silver solder, whereas yanks generally call it brazing) is a process where a low melting point filler (silver solder in this case) is used to join the tubes, so the tubes don't have to be heated to melting point. One of the advantages of silver solder is that, as the join doesn't have to be heated up really hot, you don't affect the heat treatment of the tubes as much. A disadvantage is that you need lugs, which have to be very accurately fitted, as silver solder is hopeless at filling voids. You can use brass as the filler too, which has a slightly higher melting point than silver, but brass won't wet to stainless steel. That said, I quite like the aesthetics of lugs - for me they're what a bicycle is all about. See http://www.phred.org/~josh/build/brazing.html for more info (though with some American terminology. Oh, and see http://www.littlefishbicycles.com/frame/ for info on my previous bikes. Cheers, Suzy |
#5
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On 11/02/2011 7:20 AM, suzyj wrote:
On Feb 11, 2:54 am, Geoff Lockglock@home wrote: Welding is a process where the actual metal of the tubes is heated to melting point to make the join. Brazing and soldering (we generally use the term soldering when working with silver solder, whereas yanks generally call it brazing) is a process where a low melting point filler (silver solder in this case) is used to join the tubes, so the tubes don't have to be heated to melting point. One of the advantages of silver solder is that, as the join doesn't have to be heated up really hot, you don't affect the heat treatment of the tubes as much. A disadvantage is that you need lugs, which have to be very accurately fitted, as silver solder is hopeless at filling voids. You can use brass as the filler too, which has a slightly higher melting point than silver, but brass won't wet to stainless steel. That said, I quite like the aesthetics of lugs - for me they're what a bicycle is all about. See http://www.phred.org/~josh/build/brazing.html for more info (though with some American terminology. Oh, and see http://www.littlefishbicycles.com/frame/ for info on my previous bikes. Awesome! I guess it would be possible to knock out a bike in a couple of days if you had everything on hand, but I suppose it takes a bit longer if one was doing it at a leisurely pace, eh? |
#6
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On 11/02/2011 2:54 AM, Geoff Lock wrote:
On 10/02/2011 1:41 PM, suzyj wrote: Hi all, It's been a few years since I built my current roadie, but recently we moved to larger premises (where the car gets its very own bit of driveway, rather than filling up the garage), so here's the result so far http://www.flickr.com/photos/suzy_j/5431195457/ So I guess little fish bicycles is back in operation You are actually MAKING your own bicycle? Wow!! I dips me lid to yer You also mentioned soldering on the flickr site whilst I am thinking that welding would seem more appropriate. Maybe I am thinking of what I have seen on mountain bikes. Butt welding saves heaps weight but most bikes were tubes and sockets up until 20years a go. I would also mention that these things need a jig to keep the alignment as well robotic welding for mass production. Only small manufactures would have this done by hand. |
#7
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All done.
http://www.flickr.com/photos/suzy_j/5472284054/ It's surprisingly light, at just 1625 grams. Now, on to number five... Cheers, Suzy |
#8
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On 24/02/2011 11:00 AM, suzyj wrote:
All done. http://www.flickr.com/photos/suzy_j/5472284054/ It's surprisingly light, at just 1625 grams. That's very nice work there What's the screw thingies (my apologies for the highly technical term) at the base of the head tube? I am guessing they are for the gear/brake cables? I've never seen that kinda setup. Also, the 1625grams is for the whole frame? |
#9
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On 24/02/2011 11:00 AM, suzyj wrote:
All done. http://www.flickr.com/photos/suzy_j/5472284054/ It's surprisingly light, at just 1625 grams. Now, on to number five... Cheers, Suzy Nice work. Do you set this up in a jig? |
#10
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On Feb 24, 3:49*pm, Geoff Lock glock@home wrote:
On 24/02/2011 11:00 AM, suzyj wrote: All done. http://www.flickr.com/photos/suzy_j/5472284054/ It's surprisingly light, at just 1625 grams. That's very nice work there What's the screw thingies (my apologies for the highly technical term) at the base of the head tube? I am guessing they are for the gear/brake cables? I've never seen that kinda setup. Yeah - they're for the STI gear cables. I've previously done downtube lever bosses. These are cool - they mean the gear cables won't rub on the head tube. Also, the 1625grams is for the whole frame? Yes. It's built with Columbus Zona. |
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