Go Back  Bike Forums > Search Forums
Reload this Page >

Search Results

Notices
 
Search: Posts Made By: guy153
Showing results 1 to 50 of 1000
Search took 0.07 seconds.
Forum: Framebuilders
01-24-23, 11:01 PM
Replies: 14
Views: 428
Posted By Doug Fattic

Keep in mind that you do need a vent hole...

Keep in mind that you do need a vent hole somewhere in your down tube area to let hot air escape when welding up your down tube. It can be at your head tube or BB or pre-drill your water bottle boss...
Forum: Framebuilders
01-23-23, 12:47 PM
Replies: 14
Views: 428
Posted By Thunderstang

Bottom brackets (39x68mm) are available with a...

Bottom brackets (39x68mm) are available with a seat hole (28.6 or 31.8mm).
I have used these brackets for (lightly loaded) children's bicycles. I used a T47 bracket for my own bike with the down...
Forum: Framebuilders
01-22-23, 07:02 PM
Replies: 20
Views: 555
Posted By t2p

https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulletin/640x452/9bb4909c_fded_4ca3_a27e_bccc2ea81499_b74bb929dd29271a01bc12ea69c5e2adb72a0e4b.jpeg

friend had this plate made to assist
Forum: Framebuilders
01-22-23, 05:12 PM
Replies: 20
Views: 555
Posted By squirtdad

Old (late 50's early 60's) craftsman table saw, ...

Old (late 50's early 60's) craftsman table saw, benchtop delta press, hand tools, routers etc,

Have done some plumbing sweat soldering, bit of brazing, but more relevant have done some jewlery...
Forum: Framebuilders
01-22-23, 01:40 PM
Replies: 20
Views: 555
Posted By squirtdad

I am enjoying all the input......not sure what my...

I am enjoying all the input......not sure what my time frame is.....may be once I retire, but as an lifelong DIY guy, this is something on my list for ages.

some things like blocks sound...
Forum: Framebuilders
01-21-23, 05:51 AM
Replies: 20
Views: 555
Posted By dsaul

A shot of my first frame build and some of the...

A shot of my first frame build and some of the basic tools that I used. Building a lugged frame with the same size seat and down tube made the fixturing easier. The frame turned out great and I rode...
Forum: Framebuilders
01-20-23, 01:44 PM
Replies: 20
Views: 555
Posted By Andrew R Stewart

My first frames and forks used a bench vise, a...

My first frames and forks used a bench vise, a good wheel and a C clamp. The frame or fork was held in a tube block in the vise. The wheel (ft or rear) was clamped to the bench top via the C clamp....
Forum: Framebuilders
01-20-23, 12:07 PM
Replies: 20
Views: 555
Posted By Doug Fattic

Of course you need something to hold the tubes to...

Of course you need something to hold the tubes to your design. You can try to avoid calling it a jig but it is going to be something physicall to do that job. And you need some method of keeping the...
Forum: Framebuilders
01-19-23, 09:34 PM
Replies: 20
Views: 555
Posted By duanedr

My first few were done without fixtures other...

My first few were done without fixtures other than Paragon tube blocks and a pretty flat surface. I think tube blocks are very helpful as reference points. I think starting with a track/single...
Forum: Framebuilders
01-19-23, 08:14 PM
Replies: 20
Views: 555
Posted By Andrew R Stewart

The first 8 frames I did were based on a full...

The first 8 frames I did were based on a full scale drawing, taped to the floor. A few squares (adjustable wood worker versions are fine), bench vise and files and you're off to the races. I would...
Forum: Framebuilders
01-19-23, 05:17 PM
Replies: 20
Views: 555
Posted By unterhausen

I have never pinned. I built my tandem and a...

I have never pinned. I built my tandem and a lugged frame without a fixture. I had fixturing to keep the bb shell perpendicular to the seat tube, but it's not essential. Then build the hockey stick...
Forum: Framebuilders
01-19-23, 02:23 PM
Replies: 20
Views: 555
Posted By squirtdad

building without a jig

What would minimal needs be to build with out a jig?
Assuming good flat surface but what else?
and assembly methods? i.e pinned lug method?

been toying with doing a build for years, happy...
Forum: Framebuilders
01-13-23, 03:10 AM
Replies: 19
Views: 591
Posted By kooby

Sorry for the long wait ...

Sorry for the long wait

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/img_20210201_111454228_889b75d5e736a5bf24a13d72c541c674aefa1061.jpg
Here is the top tube being printed....
Forum: Framebuilders
01-12-23, 04:04 PM
Replies: 19
Views: 737
Posted By Doug Fattic

My philosophy is that it is better to braze a...

My philosophy is that it is better to braze a frame outside of a fixture for several reasons. First, it allows the frame tubes to freely expand and move as it is being heated. Second, it is easiest...
Forum: Framebuilders
01-12-23, 10:30 AM
Replies: 19
Views: 737
Posted By Doug Fattic

Now that my laptop has come out of its coma, I'll...

Now that my laptop has come out of its coma, I'll post a couple of pictures of my jigs for inspiration. If I was to start again from scratch with minimal funds, I'd somehow make something similar out...
Forum: Framebuilders
01-11-23, 08:10 AM
Replies: 19
Views: 737
Posted By unterhausen

Maybe my example of variability in frame geometry...

Maybe my example of variability in frame geometry should have been '70s Treks. But I suspect those British frame still had a lot of variability and it really doesn't matter. People love them.

The...
Forum: Framebuilders
01-10-23, 12:40 PM
Replies: 19
Views: 737
Posted By unterhausen

If the bottom of the head tube is a little off...

If the bottom of the head tube is a little off it's not going to affect handling much. If it did, nobody would have ever liked their bike that was made by eye. Which was a lot of the English bikes...
Forum: Framebuilders
01-08-23, 02:45 PM
Replies: 19
Views: 737
Posted By bulgie

There are jigs that let you "design the frame"...

There are jigs that let you "design the frame" right there on the jig, and the jig more or less calculates the heattube length and height for you. Doug Fattic's laser-cut jig comes to mind as an...
Forum: Framebuilders
01-05-23, 02:37 PM
Replies: 19
Views: 737
Posted By Devin Rickey

I bought a set of these for my jig. ...

I bought a set of these for my jig. https://www.chopsource.com/bicycle-frame-jig-fixture-centering-cone-set-steel.html

Here is a pic.

...
Forum: Framebuilders
01-03-23, 10:12 PM
Replies: 19
Views: 381
Posted By Andrew R Stewart

On further thinking no lathe would be needed for...

On further thinking no lathe would be needed for reducing the eccentric's central section. It really doesn't need any "precision" of dimension. just not hang up on the shell's matching section. A...
Forum: Framebuilders
01-02-23, 09:59 PM
Replies: 12
Views: 383
Posted By Andrew R Stewart

Paint Curing Heated Box

I am about to rattle can a new build (wide tired path drop bar bike). Here in the Rust Belt tomorrow's high of about 45*F will be not what the paint wants. I have a few ideas to deal with this while...
Forum: Framebuilders
01-01-23, 01:59 PM
Replies: 6
Views: 331
Posted By Kontact

Just curious if anyone has ever successfully cut...

Just curious if anyone has ever successfully cut and extended a steel steerer by bonding in a carbon tube for an aheadset? WIth 3-4" of steel steerer to bond the carbon inner sleeve to, you should...
Forum: Framebuilders
01-01-23, 03:32 AM
Replies: 6
Views: 331
Posted By bulgie

That's not my bag, man. ;) Yes the steerer...

That's not my bag, man. ;)

Yes the steerer can be grafted to a longer one. The joint is done partway up, below where the stem quill will tighten, but above the point where steerers bend or break,...
Forum: Framebuilders
12-30-22, 05:52 PM
Replies: 19
Views: 381
Posted By bulgie

Ti Cycles mounts the frame in a Bridgeport and...

Ti Cycles mounts the frame in a Bridgeport and uses a boring head. Or did, back when I worked there ~25 years ago. Surprisingly easy and quick job, way easier than reaming.

Prior to working at...
Forum: Framebuilders
12-30-22, 01:04 PM
Replies: 19
Views: 381
Posted By dsaul

I would need to see pics of the parts involved,...

I would need to see pics of the parts involved, but I would probably opt to modify the eccentric, rather than the frame. Titanium is very hard on cutting tools and requires a lot of leverage to make...
Forum: Framebuilders
12-29-22, 08:39 PM
Replies: 6
Views: 252
Posted By Andrew R Stewart

Most home drill presses are not very rigid and...

Most home drill presses are not very rigid and drill press vises with angled tube blocks and hole saws even less so. If you must go this path leave a few MMs to finish file to, angles and centerlines...
Forum: Framebuilders
12-29-22, 12:25 PM
Replies: 6
Views: 252
Posted By unterhausen

I suggest mitering with files unless you are...

I suggest mitering with files unless you are building a car frame out of 5/8" tubing and there are a huge number of miters. Mitering is pretty difficult on a drill press, you'll likely get fairly...
Forum: Framebuilders
12-29-22, 11:03 AM
Replies: 6
Views: 252
Posted By dsaul

5/8" seems a bit too beefy for racks. Are you...

5/8" seems a bit too beefy for racks. Are you sure you didn't mean 5/16"? For 5/16" any cheap tubing bender will work. For 5/8" I suggest looking for a used Ridgid 358 ratchet bender.

Avoid...
Forum: Framebuilders
12-29-22, 05:41 AM
Replies: 8
Views: 328
Posted By unterhausen

Blame Ernesto. Must have looked cool to have...

Blame Ernesto. Must have looked cool to have straight blades back in 1989.
Since Nova never has their disc blades nowadays, I gave up on the idea of bending them. Probably have to get a longer...
Forum: Framebuilders
12-28-22, 05:07 PM
Replies: 18
Views: 537
Posted By Crankycrank

I'm fairly certain it was 725 but Bob Jackson is...

I'm fairly certain it was 725 but Bob Jackson is out of business for now and I just remember when ordering that I had it made with 853 tubing for the main triangle, and they said 725 (or maybe it was...
Forum: Framebuilders
12-28-22, 04:49 PM
Replies: 18
Views: 537
Posted By Andrew R Stewart

It's a pretty well known history that when...

It's a pretty well known history that when Reynolds first released 753 (heat treated 531) they had a significant number of stay cracks, often at the tire/ring clearance indents. The 753 fork blades...
Forum: Framebuilders
12-22-22, 06:41 PM
Replies: 10
Views: 541
Posted By Andrew R Stewart

Brazing a bottle boss is dealing with a huge...

Brazing a bottle boss is dealing with a huge difference of contact surface area, WRT the amount of edge between the two parts. meaning that the boss has so little area to have the filler flow into...
Forum: Framebuilders
12-21-22, 10:34 PM
Replies: 10
Views: 541
Posted By Andrew R Stewart

I watched this vid just last night. Very...

I watched this vid just last night. Very interesting. But I am a child of that time so what would you expect. Being East Coast I am less familiar with some of his references of people he worked with...
Forum: Framebuilders
12-21-22, 07:35 PM
Replies: 10
Views: 541
Posted By boneshaker78

Paul Brodie

I’m not a framebuilder, but I sure wish I was. I really like watching Paul’s videos and thought some of you might enjoy hearing about his life experiences. If you’re interested, he has a channel on...
Forum: Framebuilders
12-19-22, 09:38 PM
Replies: 13
Views: 441
Posted By bulgie

Yeah both stays should have a small fillet added...

Yeah both stays should have a small fillet added for more strength and to hide the original work, which is not the worst, but kinda poor.

That seat lug slit is crying out for a round hole at the...
Forum: Framebuilders
12-19-22, 01:44 PM
Replies: 14
Views: 440
Posted By unterhausen

After this discussion, I definitely have to get...

After this discussion, I definitely have to get some of those blades. But the sad fact is any sort of subtlety like this is lost on me.
Forum: Framebuilders
12-19-22, 12:59 PM
Replies: 14
Views: 440
Posted By Andrew R Stewart

And there are many thousands of forks with vastly...

And there are many thousands of forks with vastly different blades, suspension forks that often have one blade sprung and the other damped. Andy
Forum: Framebuilders
12-19-22, 08:28 AM
Replies: 14
Views: 440
Posted By unterhausen

If you didn't know about it, you probably...

If you didn't know about it, you probably wouldn't notice. If you did know about it, it would drive you crazy. Most of the deflection is at the top of the blade, and they are the same there.
Forum: Framebuilders
12-19-22, 08:21 AM
Replies: 14
Views: 440
Posted By Trakhak

On using fork blades of different gauges: they'd...

On using fork blades of different gauges: they'd almost certainly exhibit two different rates of response to road shock. The effect would likely be subtle, but it would bother me.

In fact, my...
Forum: Framebuilders
12-18-22, 01:06 PM
Replies: 14
Views: 440
Posted By Andrew R Stewart

I thought about using two different blades, disk...

I thought about using two different blades, disk specific on the caliper side and "standard" on the right side. This is what we did for a couple of customers when I worked at Cyclery North and wanted...
Forum: Framebuilders
12-17-22, 01:45 PM
Replies: 14
Views: 440
Posted By Andrew R Stewart

Eric- Yes this is not my usual cautious choice:)...

Eric- Yes this is not my usual cautious choice:) I gave this a lot of thought and have some Nova disk blades on had but I wanted a lighter and less stiff fork than the last one I made with the same...
Forum: Framebuilders
12-15-22, 08:16 PM
Replies: 13
Views: 441
Posted By Mad Honk

Skip, You do have your hands full with this...

Skip,
You do have your hands full with this one! I doubt the freezing water will help much without doing a bit more damage. You have used frame blocks on the dent to round it out correct? If...
Forum: Framebuilders
12-15-22, 05:24 PM
Replies: 13
Views: 441
Posted By bulgie

Tacking with brass you mean? I think it can hold,...

Tacking with brass you mean? I think it can hold, but even a quick tack gets some themral expansion so by the time you have it tacked , it's already moved up the seat tube a little. The faster you...
Forum: Framebuilders
12-15-22, 03:23 AM
Replies: 13
Views: 441
Posted By bulgie

When it comes time to tack the loose left...

When it comes time to tack the loose left seatstay to the seat tube, I recommend pinning it. Otherwise as soon as you start heating it to tack it (say, with brass) it will thermally expand and creep...
Forum: Framebuilders
12-14-22, 08:28 PM
Replies: 13
Views: 441
Posted By Andrew R Stewart

Looks like the post binder ears need some...

Looks like the post binder ears need some attention too:) Good project for learning on a few levels.

One path would be to do an alignment (with the LH dropout location left "loose", alignment...
Forum: Framebuilders
11-27-22, 10:07 AM
Replies: 5
Views: 275
Posted By Andrew R Stewart

Tom- Did you apply a rust inhibitor (FrameSaver)...

Tom- Did you apply a rust inhibitor (FrameSaver) inside the tubes too? If not than I would just use a solvent first, maybe kerosene or a SafetyKleen shop tank. Any chemical paint removal should be...
Forum: Framebuilders
11-17-22, 11:54 AM
Replies: 14
Views: 1,508
Posted By niknak

I would recommend letting the framebuilder you...

I would recommend letting the framebuilder you chose select the tubing based on the ride characteristics you're after. Adhering to a certain tube brand and model name will only limit the options the...
Forum: Road Cycling
11-12-22, 09:45 AM
Replies: 67
Views: 3,013
Posted By BillyD

Go for it. Vinyl records and film cameras have...

Go for it. Vinyl records and film cameras have made a comeback lately, why not downtube shifters?
Forum: Framebuilders
11-03-22, 06:10 AM
Replies: 11
Views: 470
Posted By Tandem Tom

Dynamic Wiring Idea Needed

This winter I will be repainting my wife's touring bike. The wire management from the hub to the light has been "electrical tape along the fork blade " . So looking for an idea or 2.Not sure I ...
Forum: Framebuilders
10-31-22, 10:11 AM
Replies: 2
Views: 428
Posted By Andrew R Stewart

Philly Expo Thoughts

Just returned from the Philly show. I attended all day Saturday (a mix of seminars and walking the displays) and for a couple of hours on Sunday.

I have to admit that I was not impressed by most...
Showing results 1 to 50 of 1000
 


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.