Search: Posts Made By: duanedr
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Forum: Framebuilders
07-06-19, 06:16 PM
Replies: 3
Views: 672
Posted By duanedr

Do you have pictures? sounds like it's suffered...

Do you have pictures? sounds like it's suffered a front end impact that bent the fork.
Forum: Framebuilders
07-01-19, 02:36 PM
Replies: 17
Views: 2,087
Posted By duanedr

That's exactly where I start for road bikes-90mm...

That's exactly where I start for road bikes-90mm longer than the crank. From there I factor in terrain, expected use, pedals, crank width to drive adjustments upward.
Forum: Framebuilders
07-01-19, 01:53 AM
Replies: 17
Views: 2,087
Posted By duanedr

BB Drop is how you arrive at what you care about...

BB Drop is how you arrive at what you care about - BB height. What folks are reacting to is your height of 281mm is pretty high for anything that isn't designed for single-track. Also, 74* STA is...
Forum: Framebuilders
05-11-19, 07:46 PM
Replies: 10
Views: 2,254
Posted By duanedr

I'm only about 1/3rd through it but I doubt it's...

I'm only about 1/3rd through it but I doubt it's going to make anyone any faster. It's Skeptics Guide to the Universe. There's another one called Thinking Fast and Slow that is really interesting...
Forum: Framebuilders
05-10-19, 11:43 PM
Replies: 10
Views: 2,254
Posted By duanedr

As you lengthened the CS and changed the...

As you lengthened the CS and changed the dropouts, you likely affected the BB Drop, STA, HTA and Trail as well. Enough to notice? Probably not individually but, 10mm here, .25* there and another...
Forum: Framebuilders
04-20-19, 07:03 PM
Replies: 20
Views: 2,828
Posted By duanedr

[QUOTE=Marcus_Ti;20893006]I remember the short...

[QUOTE=Marcus_Ti;20893006]I remember the short lived Bontrager "Buzzkill" bar plugs. Emphasis short lived, least I thought they stopped making them.
Yep, those are the ones I was talking about.
Forum: Framebuilders
04-20-19, 11:22 AM
Replies: 15
Views: 3,342
Posted By duanedr

That is what I noticed. On the DT at the HT...

That is what I noticed. On the DT at the HT especially there is quite a bit of material removed from the downtube. I can only imagine how thin it is in that highly stressed location.
Forum: Framebuilders
04-20-19, 11:06 AM
Replies: 20
Views: 2,828
Posted By duanedr

In practice (sample=1), I remember my Trek Madone...

In practice (sample=1), I remember my Trek Madone from like 2006 or so came with these little rubber bar plugs that suspended a small (maybe 5/16 dia x 3/4" length?) rod in rubber webbing. I was...
Forum: Framebuilders
04-20-19, 10:54 AM
Replies: 5
Views: 952
Posted By duanedr

I made these. I really like having the weight of...

I made these. I really like having the weight of these inside the socket. they dont' flex at all obviously and I can use them as anvils to then close up the sockets to fit the tubes tightly. As...
Forum: Framebuilders
04-09-19, 12:14 AM
Replies: 106
Views: 14,168
Posted By duanedr

Totally agree but, another tool in the tool box...

Totally agree but, another tool in the tool box isn't a bad thing either.
Forum: Framebuilders
04-07-19, 02:49 PM
Replies: 106
Views: 14,168
Posted By duanedr

I have tested wicking excess silver away with...

I have tested wicking excess silver away with stainless brake/shifter cable ends. I haven't tried with LFB. Cut the cable into 4-5'' sections and use them just the opposite as the filler rod. Dip...
Forum: Framebuilders
04-04-19, 09:40 AM
Replies: 389
Views: 226,834
Posted By duanedr

26" MTB for a local shredder

Here's the latest one to leave the shop. The rider is 11yo so, the design criteria was light weight and low. The dad rides a lot and knows the benefits of a high end bike so he wanted something...
Forum: Framebuilders
03-06-19, 12:21 AM
Replies: 12
Views: 1,626
Posted By duanedr

Yes, I have used one as well (also the Serotta...

Yes, I have used one as well (also the Serotta one) and think with a few small tweaks it could be useful. One improvement was thicker material to increase rigidity. After the current build, I have...
Forum: Framebuilders
03-05-19, 02:15 PM
Replies: 12
Views: 1,626
Posted By duanedr

Here are my thoughts and they should be taken as...

Here are my thoughts and they should be taken as reminders and not as new knowledge. I have gone through very similar exercise to get my jig dialed in and it is frustrating to chase the errors in...
Forum: Framebuilders
02-13-19, 06:51 PM
Replies: 13
Views: 1,502
Posted By duanedr

High trail, front load and high BB is destined to...

High trail, front load and high BB is destined to be such an odd combination of stable and un-stable that I would avoid it.

Have you thought of looking for a suitable used bike on craigslist? ...
Forum: Framebuilders
02-10-19, 02:12 PM
Replies: 35
Views: 2,320
Posted By duanedr

Nice job! That looks great! Check this page...

Nice job! That looks great!

Check this page for the tap for the rear dropout adjusters:
Framebuilding.com (http://www.framebuilding.com/best%20quality.htm)
About half way down is the tap. It...
Forum: Framebuilders
02-10-19, 02:02 PM
Replies: 28
Views: 3,056
Posted By duanedr

With those dropouts, I agree you could probably...

With those dropouts, I agree you could probably get away with what you've modeled. I might braze the outer white spacer ring directly to the dropout with Silver or maybe TIG if that's what you've...
Forum: Framebuilders
02-03-19, 06:05 PM
Replies: 16
Views: 1,734
Posted By duanedr

Andrew touches on an important point. Drop is...

Andrew touches on an important point. Drop is relative to wheel/tire size. Sachs I think builds only with 700c wheels and tires within a 23-35mm range. I haven't ever seen any of his bikes outside...
Forum: Framebuilders
01-27-19, 07:40 PM
Replies: 33
Views: 1,409
Posted By duanedr

I would go the route of a White Industries Eno...

I would go the route of a White Industries Eno hub that has eccentric axle to allow for tightening the chain.
Forum: Framebuilders
01-12-19, 04:47 PM
Replies: 28
Views: 3,056
Posted By duanedr

Ah, totally different question! As with...

Ah, totally different question! As with gambling, don't bet more than you are willing to lose.

Replacing the dropouts isn't the hardest thing but you're talking about completely changing the...
Forum: Framebuilders
01-12-19, 03:26 AM
Replies: 28
Views: 3,056
Posted By duanedr

First off, I will say I don't know why keeping...

First off, I will say I don't know why keeping the same axle standard across bikes would be a goal. The benefits seem extremely small.

But given that goal, what I am (and I think David is)...
Forum: Framebuilders
01-10-19, 07:36 PM
Replies: 28
Views: 3,056
Posted By duanedr

I agree with David this is your easy answer. As...

I agree with David this is your easy answer. As an example, the SP 15mm TA dynohub comes with a 'inner axle' that just slides into the 15mm axle and then takes a standard QR. Having a machine shop...
Forum: Framebuilders
01-06-19, 02:38 PM
Replies: 11
Views: 821
Posted By duanedr

PM sent.

PM sent.
Forum: Framebuilders
01-03-19, 05:45 PM
Replies: 11
Views: 821
Posted By duanedr

Yes...they should be able to. I have a small mill...

Yes...they should be able to. I have a small mill so, that is a limiter for me. The cost might be high as the set up was pretty time consuming. This Paragon headtube works really well for this as...
Forum: Framebuilders
01-02-19, 10:44 AM
Replies: 8
Views: 834
Posted By duanedr

Completely agree with that.

Completely agree with that.
Forum: Framebuilders
12-29-18, 12:13 AM
Replies: 8
Views: 834
Posted By duanedr

I didn't see the marring in the 3rd picture....

I didn't see the marring in the 3rd picture. Knowing how fast a production worker can make such a tweak, it doesn't seem far fetched to take the extra time on a batch of small frames without having...
Forum: Framebuilders
12-28-18, 10:52 AM
Replies: 8
Views: 834
Posted By duanedr

Is it possible that the builder bent the tubes...

Is it possible that the builder bent the tubes there to align to the dropout better? On such a small frame, the CS/SS angle would be tight and unless the builder had appropriate dropouts (which...
Forum: Framebuilders
12-06-18, 09:30 PM
Replies: 32
Views: 1,332
Posted By duanedr

Right, I was going to add that they are certainly...

Right, I was going to add that they are certainly good at marketing but, 'only marketing' seemed too narrow. And I don't have a problem with marketing. It's just like accounting or Operations - a...
Forum: Framebuilders
12-06-18, 10:29 AM
Replies: 32
Views: 1,332
Posted By duanedr

Sachs and Serotta, to name a couple, had their...

Sachs and Serotta, to name a couple, had their own branded tubes but I wouldn't label either of them 'only a marketing company'.
Forum: Framebuilders
12-05-18, 10:19 AM
Replies: 32
Views: 1,332
Posted By duanedr

I wouldn't be worried about 0.05mm off of spec -...

I wouldn't be worried about 0.05mm off of spec - that's less than 0.002" and I have measured >0.020" in bow across some tubes. I suppose a 969 is a ways off from 858 - maybe that's disappointing -...
Forum: Framebuilders
11-25-18, 10:50 AM
Replies: 25
Views: 1,664
Posted By duanedr

That looks great! You need to do a painting...

That looks great! You need to do a painting series! I really shouldn't ask for that. I'm using all my willpower to NOT jump down the painting rabbit hole!
Forum: Framebuilders
11-21-18, 04:02 PM
Replies: 16
Views: 690
Posted By duanedr

In the picture I was opening up the angle to the...

In the picture I was opening up the angle to the ST on track bikes. I agree, width isn't generally too difficult get a couple extra degrees and that can take you from 120 to 135 even. I do like...
Forum: Framebuilders
11-21-18, 03:58 PM
Replies: 16
Views: 690
Posted By duanedr

I have made them for common sized lugs/shells and...

I have made them for common sized lugs/shells and the rear round sockets but haven't done any for the oval sockets. It shouldn't be too hard to take a 1-1/2 " bar and turn down one end to ~30mm...
Forum: Framebuilders
11-21-18, 12:45 PM
Replies: 16
Views: 690
Posted By duanedr

They were whatever the builder needed them to be:...

They were whatever the builder needed them to be:
https://farm5.staticflickr.com/4757/39819177441_a6298666d5_c.jpg (https://flic.kr/p/23EFGb6)
Untitled (https://flic.kr/p/23EFGb6) by Duane Draper...
Forum: Framebuilders
11-20-18, 01:11 PM
Replies: 29
Views: 2,744
Posted By duanedr

This^^^ MTB HOF Inductees - 1991...

This^^^
MTB HOF Inductees - 1991 (https://mmbhof.org/category/inductees/1991/)
Forum: Framebuilders
11-17-18, 08:18 PM
Replies: 29
Views: 2,744
Posted By duanedr

hahahaha

hahahaha
Forum: Framebuilders
10-17-18, 12:10 AM
Replies: 4
Views: 419
Posted By duanedr

I refer to it but, then I bookmark them in my...

I refer to it but, then I bookmark them in my browser. I check back every once in a while. That listing is valuable.
Forum: Framebuilders
08-08-18, 11:56 PM
Replies: 7
Views: 680
Posted By duanedr

I turn my seat cluster sleeves and other bi-lam...

I turn my seat cluster sleeves and other bi-lam sleeves down to around .045" wall thickness from .058". The thicker look is just a bit too chunky for my eye.
Forum: Framebuilders
08-07-18, 09:04 AM
Replies: 72
Views: 7,972
Posted By duanedr

Hey! That's looking great! Like others, just...

Hey! That's looking great!

Like others, just a block of material - I used .750" square bar - drilled to the right width makes a fine canti fixture. I slotted mine so I had some side to side...
Forum: Framebuilders
08-02-18, 01:46 AM
Replies: 17
Views: 1,448
Posted By duanedr

:thumb:

:thumb:
Forum: Framebuilders
07-26-18, 03:12 PM
Replies: 72
Views: 7,972
Posted By duanedr

Yep, as I allude to, the user can manipulate the...

Yep, as I allude to, the user can manipulate the bend of the stays using the crosses that are seen just above where the fixture is sitting. you can drag them to lengthen the sections and so on. User...
Forum: Framebuilders
07-25-18, 11:11 PM
Replies: 72
Views: 7,972
Posted By duanedr

I'm a rattleCAD user and it does everything I...

I'm a rattleCAD user and it does everything I need it to do. I have started doing full size printouts for the chainstays now that i'm using curved stays and tighter tolerances between rings and discs...
Forum: Framebuilders
07-17-18, 11:47 PM
Replies: 21
Views: 936
Posted By duanedr

Looks great! Enjoy the ride!

Looks great! Enjoy the ride!
07-09-18, 08:25 PM
Replies: 33
Views: 1,056
Posted By duanedr

I'm no machinist but, if I understand how reamers...

I'm no machinist but, if I understand how reamers work, only the front edge cuts. Those relief channels on the campy cutter would help keep lubrication flowing to the cutting edge and clear chips but...
Forum: Framebuilders
07-08-18, 06:21 PM
Replies: 4
Views: 733
Posted By duanedr

Generally, I would use heat as the last resort...

Generally, I would use heat as the last resort which is to say, cut them off and file any residue off the tube. with canti bosses, it's probably ok to get them really hot and melt the filler without...
Forum: Framebuilders
07-06-18, 06:55 AM
Replies: 2
Views: 560
Posted By duanedr

That's clever!

That's clever!
Forum: Framebuilders
06-25-18, 10:19 PM
Replies: 25
Views: 2,543
Posted By duanedr

:thumb: I haven't ever heard of anyone doing it...

:thumb:
I haven't ever heard of anyone doing it any other way but thought I would ask. Definitely taking the long road!
Forum: Framebuilders
06-25-18, 08:08 PM
Replies: 25
Views: 2,543
Posted By duanedr

Looking forward to this! Did you miter both...

Looking forward to this! Did you miter both tubes or butt one against the other like with a filleted joint?
Forum: Framebuilders
06-19-18, 08:37 PM
Replies: 10
Views: 1,168
Posted By duanedr

A couple other approaches might be: 1 - Call...

A couple other approaches might be:
1 - Call Grant at Rivendell and see what he says. He designed the bike as I understand.
2 - Cut out the original tube as close to the lugs as practical. Once...
Forum: Framebuilders
06-02-18, 12:50 PM
Replies: 8
Views: 833
Posted By duanedr

Yes, the tall fork and relatively short front end...

Yes, the tall fork and relatively short front end are contributing. It's not clear what length stem you're using but for CX, shortening the stem and lengthening the top tube will give more stability...
Showing results 1 to 50 of 231
 


 
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