Search: Posts Made By: Doug Fattic
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Forum: Framebuilders
06-05-19, 08:52 AM
Replies: 9
Views: 1,608
Posted By Doug Fattic

A couple of things I've learned from painting and...

A couple of things I've learned from painting and repairing frames is that the original specs and what they actually measure are often not the same. Another unknown in this equation is whether...
Forum: Framebuilders
05-28-19, 09:35 AM
Replies: 11
Views: 1,441
Posted By Doug Fattic

I have a Microsoft Excel spreadsheet that will do...

I have a Microsoft Excel spreadsheet that will do the math for you. It converts a tube’s center-to-center measurement to the distance from the edge of one tube to the edge of the other. If you email...
05-19-19, 05:25 PM
Replies: 18
Views: 1,464
Posted By Doug Fattic

Based only on the photos, this looks like one of...

Based only on the photos, this looks like one of the finest American made frames. The lugs are thinned, a heart is carved into the lugs and it has a blind seat stay bolt. In fact it looks like it was...
Forum: Framebuilders
05-08-19, 05:42 AM
Replies: 16
Views: 2,650
Posted By Doug Fattic

A flat surface is the best and most accurate tool...

A flat surface is the best and most accurate tool to build a frame. Like Steve said, since you might not build another frame it makes the most sense to use that as the base for holding your frame....
Forum: Framebuilders
05-06-19, 09:07 AM
Replies: 16
Views: 2,650
Posted By Doug Fattic

I would assume that the 1st things you will want...

I would assume that the 1st things you will want to do is figure out a way to hold your tubes to your design and have some method to check that they are all in the same plane. Do you have some kind...
Forum: Framebuilders
05-05-19, 11:50 AM
Replies: 16
Views: 2,650
Posted By Doug Fattic

I count 6 general steps in building a frame...

I count 6 general steps in building a frame starting with 1st creating the design. This process includes matching the tubes to your bicycle position and the type of riding you will be doing. A lot of...
Forum: Framebuilders
04-23-19, 06:48 AM
Replies: 4
Views: 904
Posted By Doug Fattic

Getting the most out of propane with multi-port tips

Propane is an excellent choice as a fuel for building bicycle frames. It is much cheaper and way more convenient to buy and transport than acetylene. It burns cleaner and doesnít give off soot....
04-20-19, 07:43 PM
Replies: 15
Views: 701
Posted By Doug Fattic

I have an identical Masi my parents got me in...

I have an identical Masi my parents got me in Milan in 1972. It is the same champaign color and also has a twin plate fork crown too. It is a 58cm. Do you know exactly when it was purchased? Mine was...
Forum: Framebuilders
04-19-19, 07:57 AM
Replies: 106
Views: 11,486
Posted By Doug Fattic

I’ve come to prefer oxypropane more than...

I’ve come to prefer oxypropane more than oxyacetylene for any framebuilding application including fillet brazing as long as I am using the best propane specific brazing equipment. This was reinforced...
04-18-19, 04:57 PM
Replies: 54
Views: 2,757
Posted By Doug Fattic

since6 (Gramps), why not make a frame for them...

since6 (Gramps), why not make a frame for them yourself in one of my frame building classes? I've been teaching them for over 40 years. Yes it is in my self interest to say this but hear me out....
04-17-19, 09:04 AM
Replies: 24
Views: 720
Posted By Doug Fattic

I just heard back from my friend Dima who lives...

I just heard back from my friend Dima who lives in Kharkov about the status of the XB3 factory. This is what he wrote: "I heard there was a huge fire on XB3 factory's storehouse a couple of years...
Forum: Framebuilders
04-14-19, 12:26 PM
Replies: 6
Views: 908
Posted By Doug Fattic

Using a 1 1/8Ē down tube with 8/5/8 wall...

Using a 1 1/8Ē down tube with 8/5/8 wall thickness for a touring frame will not work well - at all. Before OS tubing became available because of the popularity of mountain bikes, Columbus SP tubing...
04-12-19, 01:39 PM
Replies: 24
Views: 720
Posted By Doug Fattic

I'm sure I'm one of the very few members of Bke...

I'm sure I'm one of the very few members of Bke Forums that has actually been to the XB3 factory in the city of Kharkov Ukraine near the Russian border. Around the year 2000 they had a sign at the...
Forum: Framebuilders
04-11-19, 05:46 PM
Replies: 11
Views: 964
Posted By Doug Fattic

and if so it was squirted inside to prevent rust...

and if so it was squirted inside to prevent rust and the excess is now draining out. I heard from a builder that used to make frames in a production environment that they had problems with forks...
04-09-19, 09:24 AM
Replies: 128
Views: 5,091
Posted By Doug Fattic

In the classic era of building bicycle frames...

In the classic era of building bicycle frames horizontal dropouts with screw adjusters were necessary to solve the most difficult problem of building a frame with simple tools - getting the chain...
Forum: Framebuilders
04-09-19, 09:11 AM
Replies: 106
Views: 11,486
Posted By Doug Fattic

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/1632x1224/img_0160_c1630a9e25f6a03f50cf82e09b57abd3aadb864a.jpg
Brazing a lug with clean shore lines that doesnít require after brazing clean up...
04-04-19, 08:44 AM
Replies: 16
Views: 533
Posted By Doug Fattic

The stove enamel paint used in the UK during the...

The stove enamel paint used in the UK during the period this Bob Jackson was made is not at all like the paints we use in the States. They only way I would know how to match the color is by looking...
Forum: Framebuilders
04-04-19, 08:39 AM
Replies: 22
Views: 1,475
Posted By Doug Fattic

I made a bicycle for a customer that had some...

I made a bicycle for a customer that had some kind of front end crash. It isn't obvious that there is a bulge under the head lugs until you look closely but when I rode it after the crash, its ride...
03-31-19, 09:48 AM
Replies: 52
Views: 1,414
Posted By Doug Fattic

I donít remember exactly when Cinelli branded...

I donít remember exactly when Cinelli branded investment cast parts became available but like others have said it was around 1980. I repainted a lot of Paramounts in the 70ís that included putting on...
Forum: Framebuilders
03-26-19, 08:14 AM
Replies: 13
Views: 1,267
Posted By Doug Fattic

One problem to check is whether the seat post...

One problem to check is whether the seat post hole is round. Sometimes all the brazing can ovalize the opening and give a false reading for the right size post. In other words a smaller seat post...
Forum: Framebuilders
03-17-19, 09:52 PM
Replies: 4
Views: 1,167
Posted By Doug Fattic

Over in the classic and vintage section of Bike...

Over in the classic and vintage section of Bike Forums there is a Trek frame that was spread from 126 to 139 and the brake bridge clearly separated from one of the seat stays. Make sure your repair...
03-17-19, 01:27 PM
Replies: 60
Views: 2,137
Posted By Doug Fattic

I suspected you didnít know who I was. I got a...

I suspected you didnít know who I was. I got a call last week from a classic bicycle enthusiast that lives in Berrien Springs (the town right next door where I live and I frequently cycle right by...
03-15-19, 10:48 PM
Replies: 60
Views: 2,137
Posted By Doug Fattic

I think the OP did a fine job too and it is...

I think the OP did a fine job too and it is unlikely to break again but if it does he knows how to redo it again. This is the advantage of doing it himself. My lengthy explanation wasn’t directed to...
03-15-19, 09:57 PM
Replies: 60
Views: 2,137
Posted By Doug Fattic

This is what I would have done if you had driven...

This is what I would have done if you had driven west on US12 to my frame shop in Niles Mi. As a professional I have to take a professional approach to any repair or my reputation and therefore my...
Forum: Framebuilders
03-15-19, 09:16 AM
Replies: 7
Views: 1,517
Posted By Doug Fattic

Fillet brazing 2 tubes together with brass to...

Fillet brazing 2 tubes together with brass to make a lug works fine. It is way more than strong enough if you do it right. You can do it will Fillet Pro silver from Cycle Design too but it is a lot...
Forum: Framebuilders
03-14-19, 07:50 PM
Replies: 7
Views: 2,060
Posted By Doug Fattic

A 26 X 1.5Ē tire has a radius of 316mm. A custom...

A 26 X 1.5Ē tire has a radius of 316mm. A custom low BB height is 260mm when using 170 cranks. Subtracting 260 from 316 leaves a drop of 56. Iíve made a travel bike for myself with a BB height of 250...
03-04-19, 06:23 PM
Replies: 66
Views: 1,442
Posted By Doug Fattic

I’ve been a custom framebuilder/painter since the...

I’ve been a custom framebuilder/painter since the mid 70’s and roughly half my customers have been women so let me share some observations about what works well for them. The typical woman does not...
02-28-19, 09:37 PM
Replies: 4
Views: 376
Posted By Doug Fattic

Yea that is a picture in the catalog of a bike...

Yea that is a picture in the catalog of a bike that looks like what I remember mine looking like. During that time I couldnít find any outside information about bicycles. I visited just about every...
02-28-19, 11:18 AM
Replies: 4
Views: 376
Posted By Doug Fattic

Ascot Flyer sold at Western Auto stores

In December of 1963 my father bought me my 1st ten speed bicycle at the local Niles, Michigan (right above South Bend, Indiana and Notre Dame University) Western Auto store. They had to special order...
Forum: Framebuilders
02-27-19, 01:01 PM
Replies: 106
Views: 11,486
Posted By Doug Fattic

Thoughts on flux application. Almost all...

Thoughts on flux application. Almost all beginners make the same predictable mistakes in how there approach putting on and drying flux as well as how they try to braze. Iíll just touch on a couple of...
02-24-19, 12:35 PM
Replies: 42
Views: 1,636
Posted By Doug Fattic

No the shifter band stop is on the side because...

No the shifter band stop is on the side because Campy bands were diamond shaped in the middle so the point of a diamond did not sit well right above a small stop. They were intentionally brazed to...
02-24-19, 12:13 PM
Replies: 33
Views: 1,255
Posted By Doug Fattic

WGB, those that want to get into hobby frame...

WGB, those that want to get into hobby frame building are always looking for a used oxyacetylene outfit. However the kind of torch handle most want are smaller ones with the control knobs on the top...
Forum: Framebuilders
02-18-19, 06:29 PM
Replies: 17
Views: 974
Posted By Doug Fattic

Part of the way to reduce internal stress is to...

Part of the way to reduce internal stress is to spot, align and braze in a way that doesn't create it. There is a lot that goes into brazing a joint the most effective way possible including what...
Forum: Framebuilders
02-18-19, 03:14 PM
Replies: 17
Views: 974
Posted By Doug Fattic

I'm not sure I was clear about what I do. After...

I'm not sure I was clear about what I do. After brazing the seat tube to the bottom bracket as a separate unit, I assemble and then spot braze all the rest of the front triangle in my fixture. I...
Forum: Framebuilders
02-17-19, 10:40 PM
Replies: 17
Views: 974
Posted By Doug Fattic

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulletin/1632x1224/img_0499_9b1d6232b8053462fdb0b3f06d8c3930c1077531.jpg
Since my method of putting tubes together is completely different than yours I...
Forum: Framebuilders
01-31-19, 10:00 AM
Replies: 17
Views: 889
Posted By Doug Fattic

Andy Newlands at Strawberry Cycles in Portland...

Andy Newlands at Strawberry Cycles in Portland under the subcategory of "Torch and File" carries Reynolds tubing. He has in stock some extra long tube lengths although they may not be in diameters or...
Forum: Framebuilders
01-30-19, 11:48 AM
Replies: 33
Views: 1,327
Posted By Doug Fattic

Do you know how to braze with brass? If you can...

Do you know how to braze with brass? If you can then further explanation might be useful.
01-30-19, 11:04 AM
Replies: 30
Views: 1,355
Posted By Doug Fattic

I might have an option for some people that would...

I might have an option for some people that would like to be involved with the process. Mostly I teach framebuilding classes but sometimes I teach frame painting classes as well. I've been doing this...
Forum: Framebuilders
01-27-19, 06:37 PM
Replies: 33
Views: 1,327
Posted By Doug Fattic

It is difficult enough so a beginner should not...

It is difficult enough so a beginner should not try and do it without expert instruction and practice. It isn't a place to start. It is easier to go from vertical to horizontal than the other way...
01-27-19, 06:30 PM
Replies: 23
Views: 829
Posted By Doug Fattic

A mistake non-framebuilders make is assuming...

A mistake non-framebuilders make is assuming bicycle tubes are straight. They seldom are straight. In my frame building classes I have my students roll the tubes on the alignment table to find and...
01-23-19, 11:52 PM
Replies: 48
Views: 1,641
Posted By Doug Fattic

I visited Pogliaghi's shop in the late 70's as...

I visited Pogliaghi's shop in the late 70's as well as several other builders around Milan. Because I was/am a frame builder I understood what I was seeing. What I recall was about 4 guys (give or...
Forum: Framebuilders
01-21-19, 04:00 PM
Replies: 23
Views: 1,381
Posted By Doug Fattic

I made myself a travel take apart bicycle with...

I made myself a travel take apart bicycle with 20” wheels in 2001. My goal was to be able to put it into a normal suitcase. It consisted of 3 sections. I tig welded lug like steel sleeves onto a...
01-13-19, 11:03 AM
Replies: 65
Views: 2,256
Posted By Doug Fattic

The caution I suggest about looking at specific...

The caution I suggest about looking at specific frame details like the way the stay ends are finished off as they blend into the dropouts is that a variety of builders with their own style may work...
01-12-19, 08:05 PM
Replies: 65
Views: 2,256
Posted By Doug Fattic

I wondered that too. I learned how to build...

I wondered that too. I learned how to build frames at Ellis Briggs in 1975. I have several examples in my frame building shop. Last night I went out to check serial numbers and mine all had 4 digits...
01-11-19, 10:07 PM
Replies: 23
Views: 745
Posted By Doug Fattic

The situations I was referring to looks just like...

The situations I was referring to looks just like the yellow frame Merziac posted. Where the rusting-from-the-inside-out is most common is the very underside of top and down tubes and chain stays. If...
01-11-19, 04:57 PM
Replies: 23
Views: 745
Posted By Doug Fattic

I'm a builder and painter and when I've seen this...

I'm a builder and painter and when I've seen this before, it's usually because the tube is rusting from the inside out. So most likely it is not just a cosmetic issue but a serious cancer. That...
Forum: Framebuilders
01-02-19, 11:17 AM
Replies: 35
Views: 1,400
Posted By Doug Fattic

I'm signing my name Doug Fattic because I put my...

I'm signing my name Doug Fattic because I put my responses in the quotes and it won't post unless I write something outside of the quotes.
12-31-18, 10:42 PM
Replies: 12
Views: 441
Posted By Doug Fattic

Those Nervex Professional lugs look nicer filed...

Those Nervex Professional lugs look nicer filed than what would have been a typical production frame from a big company like Peugeot or Motobecane. There were lots of frames made in the UK and sold...
Forum: Framebuilders
12-31-18, 09:36 PM
Replies: 35
Views: 1,400
Posted By Doug Fattic

One of the problems of this discussion is that...

One of the problems of this discussion is that not everyone taking part understands all the steps it takes to paint a bicycle frame. Painting a frame is more complicated than someone that has never...
Forum: Framebuilders
12-30-18, 10:31 PM
Replies: 35
Views: 1,400
Posted By Doug Fattic

[list=1] I use House of Kolor paints because...

[list=1]
I use House of Kolor paints because it was one of the 1st paint companies in the 80's to come out with glamour paints like pearls and candies that was compatible with polyurethane enamels....
Showing results 1 to 50 of 305
 


 
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