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Search: Posts Made By: Doug Fattic
Showing results 1 to 50 of 588
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Forum: Framebuilders
07-28-20, 06:30 AM
Replies: 24
Views: 435
Posted By Doug Fattic

Two pieces of 4130 tubing with a wall thickness...

Two pieces of 4130 tubing with a wall thickness of 0.120" can be used to bend/curve cut out flat plate to fit around a frame tube. The inside tube would have an OD the size of the head or seat tube....
07-27-20, 12:35 PM
Replies: 17
Views: 367
Posted By Doug Fattic

I agree with the posts above that suggest filling...

I agree with the posts above that suggest filling the hole with a mild steel rod and brazing it in with silver. The only thing I would add is that I would start the new hole with a "center drill". ...
07-26-20, 07:27 AM
Replies: 22
Views: 548
Posted By Doug Fattic

The rear dropouts were 1st brazed into chain...

The rear dropouts were 1st brazed into chain stays in preparation for hearth brazing that unit into the bottom bracket shell with the front triangle. After the front triangle was spot brazed and...
07-25-20, 09:37 PM
Replies: 22
Views: 548
Posted By Doug Fattic

Yes propane combined with an oxygen concentrator...

Yes propane combined with an oxygen concentrator works great. BBQ propane tanks can be bought zillions of places at all hours. Neither is its transportation and sale restricted like acetylene. It...
07-25-20, 04:49 PM
Replies: 22
Views: 548
Posted By Doug Fattic

I went to learn how to build frames at Ellis...

I went to learn how to build frames at Ellis Briggs Cycles in Shipley, West Yorkshire in 1975. Compared to most other UK builders I visited, their equipment was more clever and sophisticated. Their...
07-19-20, 07:54 PM
Replies: 30
Views: 1,299
Posted By Doug Fattic

Riding tragically into the ocean is a possibility...

Riding tragically into the ocean is a possibility since there was no back brake since the brake bridge had not yet been drilled out to attach one. Come to think of there was no front brake either...
Forum: Framebuilders
07-19-20, 02:13 PM
Replies: 23
Views: 1,128
Posted By Doug Fattic

I bought one of those many years ago. They...

I bought one of those many years ago. They spacing can be adjusted. The round piece that holds the bosses are actually 2 pieces where the middle parts hidden inside the fixture are split and the ends...
07-18-20, 12:44 PM
Replies: 6
Views: 333
Posted By Doug Fattic

Everything about this frame points to a decent...

Everything about this frame points to a decent American builder making it sometime in the early to mid 80's. It is nicely made with Henry James lugs that were almost never used outside of the US and...
07-17-20, 07:43 AM
Replies: 30
Views: 1,299
Posted By Doug Fattic

I am super curious about who made this frame. It...

I am super curious about who made this frame. It has an extraordinary amount of custom details. The seat binder bolt is incorporated into the seat stays. The equipment to do this probably has to...
07-16-20, 10:23 AM
Replies: 36
Views: 963
Posted By Doug Fattic

For some reason I thought you lived in the States...

For some reason I thought you lived in the States until I looked at your personal information more closely. I'm assuming it wasn't difficult to find that bolt in the UK? Also did it go in smoothly...
07-16-20, 07:47 AM
Replies: 63
Views: 2,207
Posted By Doug Fattic

If you were to attach a long rod to an eyelet...

If you were to attach a long rod to an eyelet that is originally part of a steel dropout, it would take a lot of bending force to break it off. In fact it probably won’t break but bend because it is...
07-14-20, 10:01 PM
Replies: 63
Views: 2,207
Posted By Doug Fattic

Just to be clear under normal circumstances a...

Just to be clear under normal circumstances a properly brazed eyelet holding a rack on a dropout is unlikely to break. However if a bicycle with a loaded rear rear rack falls over and if the rack or...
07-14-20, 04:06 PM
Replies: 63
Views: 2,207
Posted By Doug Fattic

As a frame builder I would not use a braze-on...

As a frame builder I would not use a braze-on eyelet on a dropout to support a rear rack. What has unfortunately happened in the past was that when the loaded rear rack fell over and the panniers (or...
07-13-20, 12:43 PM
Replies: 36
Views: 963
Posted By Doug Fattic

Glengarry, just for reference on who I am, I am...

Glengarry, just for reference on who I am, I am an American that learned how to build bicycle frames in England in 1975. Before that time I had ordered several British frames from well known builders...
07-13-20, 11:14 AM
Replies: 36
Views: 963
Posted By Doug Fattic

The treading used on binder bolts on British...

The treading used on binder bolts on British frames of the classic era is 5/16" X 22 BSF (British Standard Fine). These have threads that are a little finer (more teeth per inch) than British...
07-09-20, 09:30 PM
Replies: 68
Views: 2,049
Posted By Doug Fattic

Your desired dimensions are very much outside of...

Your desired dimensions are very much outside of the norm so I can't imagine any production frames that fit your criteria. Probably somewhere there is a custom frame made similar but of course that...
Forum: Framebuilders
07-08-20, 12:44 PM
Replies: 20
Views: 841
Posted By Doug Fattic

I have ridden 7/4/7 frames with a 1" top tube I...

I have ridden 7/4/7 frames with a 1" top tube I have made for myself for more than 30 years. I would not want to go with anything with heavier walls or larger diameter tubes. There is a liveliness I...
Forum: Framebuilders
07-07-20, 05:30 AM
Replies: 9
Views: 566
Posted By Doug Fattic

Probably because your pictures are too large. On...

Probably because your pictures are too large. On my Mac I put them on my desktop and then downsized them in the tools section to a width/height of 20/15. Once they are downsized I can drag and drop...
07-06-20, 09:59 PM
Replies: 33
Views: 1,044
Posted By Doug Fattic

I'm sending out these lugs to one of my former...

I'm sending out these lugs to one of my former framebuilding class students. They can still be bought. He is going to use fairly light tubing as he is making it for his wife who doesn't need...
Forum: Framebuilders
07-05-20, 06:53 PM
Replies: 20
Views: 841
Posted By Doug Fattic

I completely agree with this. I'm a little guy...

I completely agree with this. I'm a little guy and can tell the difference between light and medium wall thickness tubes and there is a good chance she could too.
Forum: Framebuilders
07-04-20, 07:25 AM
Replies: 5
Views: 305
Posted By Doug Fattic

Tom it is much easier for an amateur builder to...

Tom it is much easier for an amateur builder to make a frame with horizontal long slot dropouts. This is because it is not necessary to nail exactly the chain stay length. You can get it...
Forum: Framebuilders
07-02-20, 02:21 PM
Replies: 7
Views: 445
Posted By Doug Fattic

One reason to face the side of the BB shell that...

One reason to face the side of the BB shell that the cup presses up against is to protect against the cup pushing away the paint as it screws in. It not only pushes the paint from the face of the...
Forum: Framebuilders
07-01-20, 07:33 AM
Replies: 10
Views: 581
Posted By Doug Fattic

I looked at my old Imron paint chart from the...

I looked at my old Imron paint chart from the 80's and I think the color is H7994U Seminole Red Metallic. I may still have a partial can somewhere. It was the only red metallic color available in...
07-01-20, 06:25 AM
Replies: 21
Views: 662
Posted By Doug Fattic

Are you wanting a black and red Motobecane like...

Are you wanting a black and red Motobecane like the one in the OP's picture? I made a frame for a customer years ago that maybe still has one. I remember the color when he brought it by to show me...
06-30-20, 11:19 PM
Replies: 21
Views: 662
Posted By Doug Fattic

Your fork looks like it is well within the range...

Your fork looks like it is well within the range that it can be bent back to original rake. I've aligned hundreds of frames in many years of framebuilding and it is uncommon that a fork is so...
Forum: Framebuilders
06-29-20, 07:10 AM
Replies: 6
Views: 455
Posted By Doug Fattic

A commonly available size is 1/16" (0.062") but a...

A commonly available size is 1/16" (0.062") but a little thinner like (0.040") would be more ideal. Here is a picture of a student frame that bought a 12" X 12" X 1/16" SS sheet for around $20. He...
Forum: Framebuilders
06-28-20, 07:29 PM
Replies: 6
Views: 455
Posted By Doug Fattic

Well Tom you already know the basic principles...

Well Tom you already know the basic principles involved that are the same as when you carved your blank lugs. You can start with the same font you used in the down tube lettering. It may have to be...
Forum: Framebuilders
06-28-20, 07:15 PM
Replies: 10
Views: 581
Posted By Doug Fattic

You might try Matt Assenmacher in Swartz Creek...

You might try Matt Assenmacher in Swartz Creek near Flint. He is one of America's original frame builders that started soon after the bike boom of 1970. He learned at Bob Jackson in Leeds after...
Forum: Framebuilders
06-28-20, 08:51 AM
Replies: 6
Views: 510
Posted By Doug Fattic

I'll add that there are 2 tip sizes for a Fluid...

I'll add that there are 2 tip sizes for a Fluid Writer. Off the top of my head I don't remember if the black one is bigger or smaller than the gold one. It can be helpful to use a bit of sandpaper to...
06-27-20, 02:52 PM
Replies: 2
Views: 182
Posted By Doug Fattic

If I was a judge I would be put demerits on a...

If I was a judge I would be put demerits on a frame that attaches seat stays directly to the top of a single butted seat tube. Most standard seat tubes have a wall thickness at the bottom bracket...
06-24-20, 06:53 AM
Replies: 51
Views: 1,765
Posted By Doug Fattic

Your bicycle was probably bought as a frame only...

Your bicycle was probably bought as a frame only right after the bike boom that started right after 1970. Before that time a "10 speed" bike was pretty rare in the US. The lack of braze-ons and...
06-22-20, 08:29 PM
Replies: 3
Views: 233
Posted By Doug Fattic

John Cherry and I are friends. We both went to...

John Cherry and I are friends. We both went to the very 1st titanium class UBI offered in 1992. He had already been building ti frames before he took that class. I've painted a lot of his road frames...
06-22-20, 04:46 PM
Replies: 13
Views: 439
Posted By Doug Fattic

You might try using neatsfoot oil on the straps. ...

You might try using neatsfoot oil on the straps. It is designed as an oil preservative and when you apply it, the leather will darken.
Forum: Framebuilders
06-21-20, 06:46 PM
Replies: 9
Views: 628
Posted By Doug Fattic

I was chatting about painting with fellow frame...

I was chatting about painting with fellow frame builder/painter Rich Gangl the other day and he said the brand aircraft stripper took out its most powerful ingredient methylene chloride and now it...
06-21-20, 06:24 PM
Replies: 17
Views: 624
Posted By Doug Fattic

Somewhere between 1980 and 1990 is when I stopped...

Somewhere between 1980 and 1990 is when I stopped reading Bicycling magazine. Rodale Press was/is a business whose purpose was to generate profit for their company and not necessarily to entertain...
06-14-20, 12:01 PM
Replies: 25
Views: 903
Posted By Doug Fattic

How would the OP know if the shop was competent?...

How would the OP know if the shop was competent? Of course there are shops somewhere that have an employee experienced in aligning dropouts but I would bet they are kind of rare. I would go to...
06-14-20, 07:06 AM
Replies: 5
Views: 249
Posted By Doug Fattic

When I was visiting various frame builders in the...

When I was visiting various frame builders in the London area in the early 70's, I stepped into Don Ferrell's shop. I remember the guy behind the counter said Don must have been born with a brazing...
06-11-20, 06:44 AM
Replies: 25
Views: 903
Posted By Doug Fattic

I agree. I wouldn't heat it up any either (and I...

I agree. I wouldn't heat it up any either (and I have awesome oxyacetylene and oxypropane torches and know exactly how to use them including what temperature range to shot for based on the color of...
Forum: Framebuilders
06-07-20, 07:47 PM
Replies: 6
Views: 488
Posted By Doug Fattic

for some reason I have a few 1 1/8" threaded...

for some reason I have a few 1 1/8" threaded steerers. What length were you looking for?
06-05-20, 07:01 AM
Replies: 3
Views: 278
Posted By Doug Fattic

The early 90's was when lightweight Tange...

The early 90's was when lightweight Tange Prestige tubing was available. It came in every wall thickness and diameter from very thin to heavy. I built most of my custom frames out of Prestige back...
06-04-20, 09:07 AM
Replies: 77
Views: 2,748
Posted By Doug Fattic

You didn't mention anything about prepping the...

You didn't mention anything about prepping the spokes and rim before building. I assume you put a little grease on each rim hole and some kind of lubricant on all the spoke treads? I use Spoke Prep...
06-03-20, 08:09 AM
Replies: 77
Views: 2,748
Posted By Doug Fattic

One trick that has always helped me is that I...

One trick that has always helped me is that I orient the flats of the nipples so they are always vertical or parallel to the ground (until the very end). Most adjustments are done in quarter turn...
06-02-20, 09:41 PM
Replies: 77
Views: 2,748
Posted By Doug Fattic

67tony, because spokes coming from the inside of...

67tony, because spokes coming from the inside of the hub travel a slightly different length to a rim than those from the outside, it is normal for them to have a slightly different tightness if all...
06-01-20, 06:22 PM
Replies: 77
Views: 2,748
Posted By Doug Fattic

This description of spoke placement is just so...

This description of spoke placement is just so you can be able to lace a wheel correctly. There are several other ways it can be done. My description isn't about the details or philosophy involved in...
06-01-20, 04:39 PM
Replies: 77
Views: 2,748
Posted By Doug Fattic

The most helpful picture would be almost straight...

The most helpful picture would be almost straight down but with just enough side angle so one can just see the spoke holes on both flanges and you are able to see clearly which spoke from one flange...
06-01-20, 01:53 PM
Replies: 77
Views: 2,748
Posted By Doug Fattic

Because this is a 32 hole Sun rim, the rim hole...

Because this is a 32 hole Sun rim, the rim hole in the picture that is just to the right of the valve hole (you put a green circle around it) is offset from the rim's center so it is supposed to have...
06-01-20, 06:21 AM
Replies: 77
Views: 2,748
Posted By Doug Fattic

I believe you have laced the wheel incorrectly....

I believe you have laced the wheel incorrectly. Follow any two almost parallel spokes that are going in the same direction from the hub to the rim. One spoke is coming from the right flange and the...
05-31-20, 04:47 PM
Replies: 6
Views: 262
Posted By Doug Fattic

I didn't benefit directly. By that I mean I don't...

I didn't benefit directly. By that I mean I don't remember someone saying they read the article and then called me up to order a frame or bring me a repaint. That doesn't mean that someone didn't...
Forum: Framebuilders
05-28-20, 02:49 PM
Replies: 24
Views: 1,130
Posted By Doug Fattic

Niles, Michigan where my shop and school is...

Niles, Michigan where my shop and school is located is not a place known for adventure. I'm just north of Interstate 80 (the PA, OH, IN toll road). However I sometimes teach short framebuilding...
05-24-20, 04:46 PM
Replies: 24
Views: 616
Posted By Doug Fattic

One of the reasons sloping tubes were not done...

One of the reasons sloping tubes were not done before mountain bikes became popular is that standard Campy or Shimano seat posts were not that long. I remember when I made custom frames in the 70's...
Showing results 1 to 50 of 588
 


 
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