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Forum: Framebuilders
04-26-21, 04:51 AM
Replies: 19
Views: 666
Posted By KPacenti

I've received a couple PM's asking what I do...

I've received a couple PM's asking what I do these days.
Below is a picture of a packaging solution (rack) I recently developed. It holds spoilers for the Volkswagen Passat....
Forum: Framebuilders
04-23-21, 10:59 AM
Replies: 16
Views: 526
Posted By Andrew R Stewart

Last I checked fairing requires that their...

Last I checked fairing requires that their customers be an actual business, with all the bureaucratic aspects like insurance, business licence and sales tax registration with your state. Andy
Forum: Framebuilders
04-21-21, 04:55 AM
Replies: 10
Views: 561
Posted By KPacenti

Nice; I'll have to clean out my garage someday....

Nice; I'll have to clean out my garage someday. lots of interesting, rare, unique bits stashed away there...somewhere.
Forum: Framebuilders
04-20-21, 08:36 AM
Replies: 16
Views: 526
Posted By dsaul

This is the completed bike. I put it together as...

This is the completed bike. I put it together as inexpensively as possible, using some parts I already had and a Sensah SRX Pro 1 x 11 group and Tektro mechanical disc brakes. The Sensah rear...
Forum: Framebuilders
04-20-21, 08:24 AM
Replies: 16
Views: 526
Posted By dsaul

Finished frame pics. As I said earlier, raw...

Finished frame pics. As I said earlier, raw material in 7005 is not available in the US, so I had to use a cutoff from one of the seatstays for a bridge. I would have preferred to have a curved...
Forum: Framebuilders
04-20-21, 08:20 AM
Replies: 16
Views: 526
Posted By dsaul

The welding of the rest of the frame went as well...

The welding of the rest of the frame went as well as could be expected for my level of experience in welding aluminum bike frames.
...
Forum: Framebuilders
04-20-21, 08:15 AM
Replies: 16
Views: 526
Posted By dsaul

I decided to weld in the bottle bosses on this...

I decided to weld in the bottle bosses on this frame and that turned out to be a bad decision. I did a test in a scrap piece of tubing and ended up completely melting the boss, because the arc tends...
Forum: Framebuilders
04-20-21, 07:44 AM
Replies: 16
Views: 526
Posted By dsaul

7005 Aluminum frame build

As a hobby framebuilder, I like to keep learning new skills and testing myself. I've built around 20 steel frames, starting with a lugged frame and moving to fillet brazing and then TIG welding. I...
Forum: Framebuilders
04-20-21, 03:43 AM
Replies: 19
Views: 666
Posted By KPacenti

Mark, Great to hear from you! Yes, I still...

Mark,

Great to hear from you! Yes, I still get my hands dirty... no bike related stuff for a few years though. And nothing very exciting. I design packaging solutions for automotive...
Forum: Framebuilders
04-19-21, 10:42 AM
Replies: 19
Views: 666
Posted By Nessism

This shell had PCD engraved on the bottom and I...

This shell had PCD engraved on the bottom and I bought it direct from the bikelugs site. Very nice quality. No windows and angles worked out well for a lowish bottom bracket position on the frame. ...
Forum: Framebuilders
04-19-21, 04:45 AM
Replies: 19
Views: 666
Posted By KPacenti

Thank you. It's always nice to hear my designs...

Thank you. It's always nice to hear my designs are appreciated and put to good use.

Yes, Bryan is a good friend. We worked together at Bontrager in Stanta Cruz for a few years. He worked at R&E...
Forum: Framebuilders
04-18-21, 02:42 PM
Replies: 19
Views: 666
Posted By KPacenti

New Here

I just found this forum and wanted to introduce myself.

While I've been out of the framebuilding supply business for a few years, I am still passionate about the craft and happy to pass along all...
Forum: Framebuilders
04-17-21, 05:01 AM
Replies: 5
Views: 334
Posted By dsaul

I got them from McMaster Carr. If you want to...

I got them from McMaster Carr. If you want to use Amazon, search "adjustable handles". There are plenty of options on there. Pay attention to the length of the threaded stud. If they are too...
Forum: Framebuilders
04-03-21, 08:33 PM
Replies: 9
Views: 541
Posted By Cynikal

The tube miter engine in RattleCad does this for...

The tube miter engine in RattleCad does this for you. I've been happy with it so far.
Forum: Framebuilders
04-01-21, 12:54 PM
Replies: 115
Views: 7,445
Posted By Andrew R Stewart

OK, here's the tent. To be sure I will not do...

OK, here's the tent. To be sure I will not do this again, this way and in this place! I have no shots of the decal hickeys as i found them but they did recede to a degree (bad pun) as things cooled...
Forum: Framebuilders
03-31-21, 05:29 AM
Replies: 115
Views: 7,445
Posted By Aldatroid

Hi guys! It's finally finished and I've taken her...

Hi guys! It's finally finished and I've taken her out on a few trails and seems to handle really well. I don't have that much to compare to so might not be that telling to be honest =)

But yeah,...
Forum: Framebuilders
03-20-21, 05:38 PM
Replies: 11
Views: 679
Posted By JohnDThompson

Traditional forged dropouts used a tab that fit...

Traditional forged dropouts used a tab that fit into a slot cut into the stay/blade. This design allowed a single forging to accommodate a wide range of frame sizes and styles. Forging from...
Forum: Framebuilders
03-14-21, 02:05 AM
Replies: 12
Views: 714
Posted By guy153

I call this the British Car Problem. You hear a...

I call this the British Car Problem. You hear a funny noise and think CV joint. You take it all apart and the CV is indeed shot. Three days later, and with most of the grease now out of your eye...
Forum: Framebuilders
03-14-21, 01:15 AM
Replies: 12
Views: 714
Posted By bulgie

Or put another way, Occam...

Or put another way, Occam (https://en.wikipedia.org/wiki/Occam%27s_razor) was an optimist.

It's always tempting to look for one simple explanation, but sometimes there's more than one thing wrong....
Forum: Framebuilders
03-05-21, 03:35 PM
Replies: 8
Views: 1,131
Posted By unterhausen

The spacing is from the dropout face. Although...

The spacing is from the dropout face. Although when the PM spec came out they hadn't started playing with where the face is. Through axle has the dropout face 3.5mm outboard relative to the mounts....
Forum: Framebuilders
03-05-21, 02:00 PM
Replies: 26
Views: 1,507
Posted By unterhausen

It makes no sense to do this with aluminum when...

It makes no sense to do this with aluminum when steel parts are easily available. Joining dissimilar metals is always going to be an experiment best left to people that really need to do it.
Forum: Framebuilders
02-24-21, 09:17 PM
Replies: 32
Views: 4,288
Posted By Andrew R Stewart

I do prep the base and sides of the stop before...

I do prep the base and sides of the stop before brazing. When my wire wheel is clean I'll just use it to clean the surface. I also sometimes change the cast miter with a file and have used production...
Forum: Framebuilders
02-24-21, 08:34 PM
Replies: 77
Views: 6,191
Posted By Andrew R Stewart

Yes my initial honing attempts with cylinder...

Yes my initial honing attempts with cylinder stone (usually three on spring loaded carriers/levers) hones were disappointing. The flex hones do a far quicker job at smoothening out the ID surfaces....
Forum: Framebuilders
02-22-21, 10:42 AM
Replies: 30
Views: 2,675
Posted By guy153

Thanks! One thing I don't recommend however is...

Thanks! One thing I don't recommend however is dropping one of the sections of square tube onto one's toe while wearing safety sandals.
Forum: Framebuilders
02-21-21, 11:41 PM
Replies: 32
Views: 4,288
Posted By Andrew R Stewart

It seems that the simple tools, or maybe the...

It seems that the simple tools, or maybe the tools that make a simple operation quicker/easier, are the ones that I like to figure out. I have held a cable stop braze on bit in various ways before....
Forum: Framebuilders
02-19-21, 09:55 PM
Replies: 11
Views: 1,022
Posted By Tdotbikes

I made my own version after taking Dougís course....

I made my own version after taking Dougís course. It really is a very useful tool.

...
Forum: Framebuilders
02-18-21, 05:24 PM
Replies: 7
Views: 704
Posted By Cynikal

It sure looks like a traditional front impact...

It sure looks like a traditional front impact that was made worse by the unsupported internal routing hole (that is in the worst possible locations btw).
Forum: Framebuilders
02-16-21, 09:56 AM
Replies: 30
Views: 2,675
Posted By Doug Fattic

Custom frame design is always a collection of...

Custom frame design is always a collection of compromises with the rider's primary needs trumping other factors that may be desirable but are in conflict. For example stem length vs toe overlap. Most...
Forum: Framebuilders
02-14-21, 06:50 AM
Replies: 3
Views: 1,325
Posted By unterhausen

Joe has been posting on FB, so apparently he's...

Joe has been posting on FB, so apparently he's back in business.
Forum: Framebuilders
02-12-21, 02:43 PM
Replies: 15
Views: 1,459
Posted By unterhausen

The stack of dimes technique works on bike...

The stack of dimes technique works on bike frames, brompton uses it. I suspect it's easier once you learn to do it. There is a lot less finesse involved. Heat, fill, pause, heat, fill and repeat. ...
Forum: Framebuilders
02-10-21, 09:33 AM
Replies: 11
Views: 1,022
Posted By Doug Fattic

Here is a picture of an assembled T tool and next...

Here is a picture of an assembled T tool and next to it are the pieces needed to make one.
...
Forum: Framebuilders
02-09-21, 11:19 AM
Replies: 22
Views: 1,567
Posted By Andrew R Stewart

The big long term issue is the stem wedge bears...

The big long term issue is the stem wedge bears on the threaded portion of the steerer. Which, BTW, is out of sight. The chance of a crack forming in one of the stress risers called threads is real....
Forum: Framebuilders
02-07-21, 04:47 PM
Replies: 32
Views: 4,288
Posted By Andrew R Stewart

It's to hold a number/letter punch in place WRT...

It's to hold a number/letter punch in place WRT the BB shell. I've struck so many times with the letters being off angle, uneven heights and spacing. I have plans for another that clamps to the...
Forum: Framebuilders
02-05-21, 08:14 PM
Replies: 7
Views: 871
Posted By unterhausen

Yes, they introduced 100x12mm within a month of...

Yes, they introduced 100x12mm within a month of when I bought 100x15 dummy axles. So I just had a feeling about this.
Forum: Framebuilders
02-05-21, 07:50 AM
Replies: 36
Views: 2,155
Posted By unterhausen

That was not faced post-weld. I do frame prep for...

That was not faced post-weld. I do frame prep for a local shop sometimes and we don't face bb shells if there isn't going to be anything in contact with it. So for a Shimano-style cartridge, we only...
Forum: Framebuilders
02-04-21, 12:29 PM
Replies: 7
Views: 871
Posted By 8aaron8

As a small builder the cost of tooling up is...

As a small builder the cost of tooling up is often prohibitive as you don't know how many orders you will actually see of the newest standard. Maybe someone asks for for "X" and you figure okay this...
Forum: Framebuilders
02-04-21, 10:23 AM
Replies: 30
Views: 2,675
Posted By Danielvetpath

Thanks for posting folks! Although I have only...

Thanks for posting folks! Although I have only used it for my own purposes a little bit so far, I find the ease of use and straightforward measurements great . Also, if get around to a little paint...
Forum: Framebuilders
02-03-21, 09:05 PM
Replies: 30
Views: 2,675
Posted By unterhausen

Looks nice, thanks for posting those ...

Looks nice, thanks for posting those ...
Forum: Framebuilders
02-03-21, 08:29 PM
Replies: 30
Views: 2,675
Posted By Danielvetpath

Thanks - I just put the pictures in my album if...

Thanks - I just put the pictures in my album if anyone is interested. Daniel
Forum: Framebuilders
02-03-21, 07:44 PM
Replies: 36
Views: 2,155
Posted By JohnDThompson

The Campagnolo #724 pilot sleeve for the BB...

The Campagnolo #724 pilot sleeve for the BB facing tool does this. It's not cheap, but is high precision. If the shell is not on-axis, you will not be able fully insert the sleeve.
Forum: Framebuilders
02-03-21, 02:57 PM
Replies: 36
Views: 2,155
Posted By dsaul

I think what most of us are saying is that this...

I think what most of us are saying is that this is a case where "close" is good enough and a tool to measure the level of precision is not really necessary. If it is not right, the only fix is to...
Forum: Framebuilders
01-31-21, 10:19 PM
Replies: 35
Views: 3,868
Posted By sannerbikes700

Just a little update in case anyone else plans to...

Just a little update in case anyone else plans to do a flat mount on a regular road fork blade...

Iíve put a few hundred miles of trail and road riding on this thing and have had no issues at all....
Forum: Framebuilders
01-30-21, 11:01 AM
Replies: 22
Views: 2,442
Posted By Bluegenes

There's now a happy ending to my little story. I...

There's now a happy ending to my little story. I was finally contacted (by phone and e-mail) by Nova. My order is now on its way, in its entirety. As new owners, I'm sure they are simply experiencing...
Forum: Framebuilders
01-29-21, 01:48 PM
Replies: 22
Views: 2,442
Posted By unterhausen

Please call them and see what's up.

Please call them and see what's up.
Forum: Framebuilders
01-27-21, 05:22 AM
Replies: 12
Views: 1,189
Posted By dsaul

I also use spring clamps and/or magnets to hold...

I also use spring clamps and/or magnets to hold the top tube in place. Magnets work fine for TIG(except for causing some arc wander), but the heat from a torch will de-magnetize them.
Forum: Framebuilders
01-26-21, 01:06 PM
Replies: 12
Views: 1,189
Posted By guy153

I have a couple of big spring clips like this: ...

I have a couple of big spring clips like this:

https://uk.farnell.com/duratool/d02332/steel-spring-clamp-150mm/dp/2444536

And I just clip one on underneath the TT. I usually only need one at...
Forum: Framebuilders
01-21-21, 08:18 AM
Replies: 30
Views: 2,675
Posted By Doug Fattic

Make your own fitting bike

The purpose of this subject thread is to post a design of a stationary fitting bike that someone can make in case they don’t have something like that now. Commercial ones are cooler and easier to use...
Forum: Framebuilders
01-11-21, 12:29 PM
Replies: 8
Views: 948
Posted By squirtdad

IIRC Bottle oxygen will allow higher flow rates...

IIRC Bottle oxygen will allow higher flow rates than a concentrator, which can be needed in emergencies. Also as no power is needed, there is no need to disconnect from the patient until in the...
Forum: Framebuilders
01-10-21, 12:53 PM
Replies: 8
Views: 948
Posted By unterhausen

In normal times, it's far simpler just to swap...

In normal times, it's far simpler just to swap tanks

I think the issue is they don't like backpressure. Not sure how much crews would appreciate the alarms going off. Probably practical issues...
Forum: Framebuilders
01-04-21, 08:17 PM
Replies: 20
Views: 1,945
Posted By unterhausen

That's the low end for a fork nowadays, although...

That's the low end for a fork nowadays, although I have seen that there are a couple of guys that will build for less. Which I fail to understand. Don't remember any names either.
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