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Search: Posts Made By: duanedr
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Forum: Framebuilders
02-02-23, 07:17 PM
Replies: 17
Views: 273
Posted By tyrion

165mm between the 2 mounting points for Tubus...

165mm between the 2 mounting points for Tubus Duo:

https://www.tubus.com/fileadmin/user_upload/tubus/downloads/technische-zeichnungen/vorderradtraeger/TZ_Duo_2.0.pdf
Forum: Framebuilders
02-02-23, 03:44 PM
Replies: 17
Views: 273
Posted By unterhausen

Moved here from bike mechanics. The...

Moved here from bike mechanics.

The consensus I've found is that lowrider bosses should be 165mm from the eyelet. Amusingly, I asked this question here some time ago

I think most production...
Forum: Framebuilders
01-31-23, 02:06 PM
Replies: 5
Views: 193
Posted By unterhausen

I would do that with only a little heartburn. ...

I would do that with only a little heartburn. You have to do it, it's not going to work well the way it is. I did this fairly regularly when I worked as a mechanic back in the '70s.

I have an...
Forum: Framebuilders
01-29-23, 07:26 PM
Replies: 9
Views: 341
Posted By Andrew R Stewart

Today as I started to assemble my "new" grovel...

Today as I started to assemble my "new" grovel bike (like a gravel one but slower) bike I took these shots of the stamped numbers. The steerer turned out nicely. The BB had a double strike that was a...
Forum: Framebuilders
01-29-23, 06:01 PM
Replies: 9
Views: 341
Posted By JohnDThompson

"Because chamfered edges are what separates us...

"Because chamfered edges are what separates us from the animals!" 😸
Forum: Framebuilders
01-27-23, 10:56 AM
Replies: 9
Views: 341
Posted By unterhausen

While we are waiting for Andy, Blondiehacks made...

While we are waiting for Andy, Blondiehacks made one at about the same time. https://youtu.be/yj_3VEU4-q0
Forum: Framebuilders
01-27-23, 04:55 AM
Replies: 14
Views: 546
Posted By bulgie

Sorry to totally hijack the thread, but I...

Sorry to totally hijack the thread, but I mentioned having to winch the mill down, and today I disassembled it enough that each piece can be hand-carried. No winching, maybe some wincing. :eek: But...
Forum: Framebuilders
01-26-23, 02:57 PM
Replies: 14
Views: 546
Posted By bulgie

I've told this story here before, skip if you've...

I've told this story here before, skip if you've heard it!

When I worked elbow-to-elbow with Glenn Erickson at R+E Cycles in the early '80s, we filed all the miters at first. Naturally we got good...
Forum: Framebuilders
01-24-23, 11:01 PM
Replies: 14
Views: 546
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, 06:29 AM
Replies: 14
Views: 546
Posted By dsaul

I usually mill out a 3/4" vent hole for the...

I usually mill out a 3/4" vent hole for the downtube/BB joint. That is plenty of space to pass cables through. Theoretically, making the hole in the bottom bracket match the ID of the downtube...
Forum: Framebuilders
01-21-23, 05:51 AM
Replies: 20
Views: 628
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, 02:57 PM
Replies: 20
Views: 628
Posted By Trakhak

Terrific idea for a thread; thanks, squirtdad ....

Terrific idea for a thread; thanks, squirtdad . The responses so far have been uniformly inspiring. In the context of the mid-winter squabbling going on in lots of other current Bike Forums threads,...
Forum: Framebuilders
01-20-23, 02:46 PM
Replies: 20
Views: 628
Posted By bulgie

I was gearing up to build a frame with no jig. I...

I was gearing up to build a frame with no jig. I have a flattish plate, which is actually the hot-rolled steel base of a Park double-sided repair stand. Not aerospace-flat, but definitely...
Forum: Framebuilders
01-11-23, 06:49 PM
Replies: 16
Views: 559
Posted By unterhausen

Guilty. Still rather not have rust.

Guilty. Still rather not have rust.
Forum: Framebuilders
01-04-23, 10:51 AM
Replies: 11
Views: 2,051
Posted By Andrew R Stewart

If Fred's son (and daughter) were interested in...

If Fred's son (and daughter) were interested in seeing the tools back in use they might make some budding builder very happy. Andy
Forum: Framebuilders
01-02-23, 09:59 PM
Replies: 12
Views: 405
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
12-30-22, 08:20 PM
Replies: 19
Views: 412
Posted By Kontact

I thought we were talking about a shell that is a...

I thought we were talking about a shell that is a solid O in the middle and split rings on both sides with pinch bolts. In that case, a minor reduction in the eccentric's diameter so it just fits the...
Forum: Framebuilders
12-30-22, 01:04 PM
Replies: 19
Views: 412
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
12-30-22, 02:50 AM
Replies: 6
Views: 279
Posted By guy153

I would do hand-mitring with paper templates for...

I would do hand-mitring with paper templates for 5/8 and just do it by hand/eye altogether for 5/16.

https://metalgeek.com/static/cope.pcgi
Forum: Framebuilders
12-29-22, 11:03 AM
Replies: 6
Views: 279
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, 09:40 AM
Replies: 11
Views: 2,051
Posted By cob666

Sorry for resurrecting this zombie thread... ...

Sorry for resurrecting this zombie thread...

Yes, that would be Fred Krancher and his daughter did work at his shop for a while, she's my wife now. Fred and Johanna had one daughter and one son....
Forum: Framebuilders
12-27-22, 09:43 AM
Replies: 19
Views: 828
Posted By unterhausen

I would ask Paul Ketelaar if he would help you...

I would ask Paul Ketelaar if he would help you with this.
Forum: Framebuilders
12-22-22, 10:58 AM
Replies: 10
Views: 586
Posted By Cynikal

I was thinking the same thing. I'm curious how...

I was thinking the same thing. I'm curious how this technique would apply to lugs. I would think that a more diffused heating makes more sense for a lug joint vs. a small braze on.
Forum: Framebuilders
12-19-22, 12:59 PM
Replies: 14
Views: 449
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, 10:00 AM
Replies: 14
Views: 449
Posted By Cynikal

I think you are correct for that being important...

I think you are correct for that being important with a thin, high pressure tire like a track bike. This will be a gravel/light tourer build with 42-48 mm 650b tires or 40mm 700's. That's a lot of...
Forum: Framebuilders
12-19-22, 08:28 AM
Replies: 14
Views: 449
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
12-16-22, 05:04 PM
Replies: 14
Views: 449
Posted By unterhausen

I should have bought some when they had them in...

I should have bought some when they had them in stock earlier this year. I'm tempted to get a set of the lightweight Reynolds blades

The Willits style mount on a regular blade doesn't fill me with...
Forum: Framebuilders
12-01-22, 05:45 AM
Replies: 13
Views: 460
Posted By unterhausen

I've always been confused about how much...

I've always been confused about how much clearance you should have for a seatpost. I don't think there is an industry standard. Some seatposts are undersized, and sometimes people want to use them...
Forum: Framebuilders
11-29-22, 08:50 PM
Replies: 13
Views: 460
Posted By Andrew R Stewart

Steve- I think you will get similar replies as...

Steve- I think you will get similar replies as you did in the Bike Mechanics thread you started (70+ replies to date).

One of the questions i had, in that other thread, is if the seat post fit is...
Forum: Framebuilders
11-17-22, 12:09 PM
Replies: 14
Views: 1,533
Posted By unterhausen

OP probably bought a Trek 2 years ago

OP probably bought a Trek 2 years ago
Forum: Framebuilders
11-05-22, 07:54 PM
Replies: 11
Views: 491
Posted By Cynikal

On a fork that I built I drilled for the wiring...

On a fork that I built I drilled for the wiring but brazed a stainless washer to reinforce the hole. Been fine for a couple of years.
Forum: Framebuilders
10-31-22, 10:11 AM
Replies: 2
Views: 435
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...
Forum: Framebuilders
10-30-22, 10:21 PM
Replies: 15
Views: 705
Posted By Andrew R Stewart

IT's been a long time since I broke a tap in a...

IT's been a long time since I broke a tap in a frame, other projects more recently. Tap removals have been about 50% successful... I have been less acceptant of using older taps as I have aged....
Forum: Framebuilders
10-30-22, 09:25 PM
Replies: 15
Views: 705
Posted By unterhausen

apparently you need a tap handle with more...

apparently you need a tap handle with more clearance.
Forum: Framebuilders
10-27-22, 03:51 PM
Replies: 6
Views: 374
Posted By unterhausen

I don't know why you would need a smiley, an...

I don't know why you would need a smiley, an elevated chain stay is one common way of doing this. That split chain stay is weird enough I want to build one. Maybe with a Cambio Corsa drive train.
Forum: Framebuilders
10-27-22, 04:02 AM
Replies: 6
Views: 374
Posted By smontanaro

There's always this: ...

There's always this:

https://flic.kr/p/2nS599h
In this Flickr album:
https://www.flickr.com/photos/8379107@N03/albums/72177720302786936/page1...
Forum: Framebuilders
10-25-22, 09:05 AM
Replies: 9
Views: 520
Posted By unterhausen

You could use the free version of bikecad and...

You could use the free version of bikecad and post a screenshot here. If you can find a stock bike you like that would probably be a good place start.
Forum: Framebuilders
10-25-22, 05:16 AM
Replies: 5
Views: 503
Posted By dsaul

That seat tube is meant to take a 30.6 seat post....

That seat tube is meant to take a 30.6 seat post. Thomson makes a seatpost in that size or find a shim to go from 30.6 to the size post that you want to use. This is one of those things that you...
Forum: Framebuilders
10-06-22, 11:43 AM
Replies: 16
Views: 773
Posted By JohnDThompson

Another option is a "floating" chainring for the...

Another option is a "floating" chainring for the timing chain:
...
Forum: Framebuilders
10-06-22, 10:02 AM
Replies: 34
Views: 2,867
Posted By Andrew R Stewart

I use two different container types for my...

I use two different container types for my soaking, both are heated above tap levels with this immersion heater. I make sure the heating element is under water fully but keep the cord end above the...
Forum: Framebuilders
10-04-22, 06:53 PM
Replies: 34
Views: 2,867
Posted By Andrew R Stewart

This frame is done for now. As there's no...

This frame is done for now. As there's no intended rider I won't spend the $ on paint. I finished it a couple of weeks ago but life took over and didn't get around to taking some shots till today....
Forum: Framebuilders
10-01-22, 06:01 AM
Replies: 3
Views: 491
Posted By dsaul

I don't see any reason why they can't be welded...

I don't see any reason why they can't be welded together. I found some info from a manufacturer of T45 tubing that recommends A32 filler wire, which is ER80s2 in the US, for welding it. I would use...
Forum: Framebuilders
09-30-22, 07:04 PM
Replies: 16
Views: 663
Posted By unterhausen

there are a ton of good youtube videos about...

there are a ton of good youtube videos about fusion. Lars for starters. Although if I knew nothing and didn't intend to make money off of cad I would learn freecad.
Forum: Framebuilders
09-29-22, 10:39 AM
Replies: 16
Views: 663
Posted By unterhausen

I would have them laser cut. Rear track dropouts...

I would have them laser cut. Rear track dropouts are ideal for that either process though.
I keep thinking about having dropouts made. Too many projects right now though, and I would still need a...
Forum: Framebuilders
09-21-22, 06:44 AM
Replies: 27
Views: 1,689
Posted By SJX426

Update: Decided to solder a wire (SS) to the...

Update:
Decided to solder a wire (SS) to the screen (SS). I happen to have the right flux and solder. I let the wire protrude about a diameter on the other side of the screen and soldered it...
Forum: Framebuilders
09-16-22, 09:18 AM
Replies: 4
Views: 599
Posted By Cynikal

Have you selected a builder yet? Most builders...

Have you selected a builder yet? Most builders will work with you on the tubeset that matches your needs and riding style. I've talked to some builders who get frustrated when a client has made...
Forum: Framebuilders
09-14-22, 09:02 AM
Replies: 14
Views: 633
Posted By Andrew R Stewart

While I do prefer specific (I make my own) DT...

While I do prefer specific (I make my own) DT cable stops over shifter bosses given that this frame is made from REALLY thin stuff I would suggest just using the lever boss mounted adaptors. That...
Forum: Framebuilders
09-14-22, 06:36 AM
Replies: 14
Views: 633
Posted By unterhausen

the first thing the industry did when they got to...

the first thing the industry did when they got to 11+ is drop the front chain ring. So apparently we didn't need all those gears after all. I'm pretty much switched over to 2x10, but nowadays a...
Forum: Framebuilders
09-11-22, 03:58 AM
Replies: 24
Views: 1,434
Posted By guy153

Looking at that catalogue it says all Dedacciai...

Looking at that catalogue it says all Dedacciai tubing is seamless cromoly (25CrMo4 is the European standard equivalent to 4130). So it's all good, and basically equivalent to anything from Columbus...
Forum: Framebuilders
09-04-22, 06:47 PM
Replies: 34
Views: 2,867
Posted By Andrew R Stewart

I'm still chipping away at this frame project. It...

I'm still chipping away at this frame project. It now is a BSO. Here are some shots
...
Showing results 1 to 50 of 244
 


 
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