Engineering bicycle part by part

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MrCurrieinahurry
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by MrCurrieinahurry



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Formerly known as Curryinahurry

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spokenwords
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by spokenwords

Komarov wrote:
Tue Oct 04, 2022 8:57 am
spokenwords wrote:
Tue Oct 04, 2022 12:44 am
Also, can you make an exact replica of the Basso stem out of carbon and ti? asking for a friend.
I think the cost of even serially produced stem will be quite high (if not the highest) and copy of Basso stem will require hours of engineering work, costy 3d printing, moulds for custom carbon part... So yeah, of course I can do it, but it will cost thousands $ :D
I will let currie have first dibs then. :lol:
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by Weenie


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micky
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by micky

Komarov wrote:
Fri Apr 29, 2022 10:06 pm
photo5431536065270889130.jpg
photo5431536065270889131.jpg
photo5431536065270889132.jpg
photo5431736537164397550.jpg

Almost ready with the cork saddle.
Really dampens vibrations from the road damn well, used it for 2 weeks to commute without bibs (1 hour long ride twice a day) - felt very nice, I'd say even unexpectedly nice. Now bought laser to engrave the logo on the cork (We've made a new logo so here it is).
PU lacquer seams to work nicely doesn't make the cork harder and allows no wear on the cork at least for now. Also no moisture adsorption noticed.
Ordered couple of squre meters of cork for cnc-milling more pads, so hope to make a relatively big batch very soon
What seat clamp do you have on your bike?

Komarov
in the industry
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by Komarov

micky wrote:
Thu Oct 06, 2022 8:15 am
What seat clamp do you have on your bike?
It Tune Wurger Seatclamp
Снимок.PNG
Unfortunately they dont produce it anymore.
Usually I'm the first to through some shit at Tune products, especially the ones made from composites (IMHO the quality is almost the worst from what I've seen), but this seatclamp is just beautiful piece of engineering. Really great part and works perfect despite looking fragile.
I think it was a bit too expensive to produce for them.

kode54
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by kode54

I have the same Tune seat lamp on my Aethos. Nice design.
- Factor Ostro VAM Disc
- Factor LS Disc
- Specialized Aethos Disc
- Sturdy Ti Allroad Disc
- Guru Praemio R Disc

Komarov
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by Komarov

kode54 wrote:
Thu Oct 06, 2022 7:35 pm
I have the same Tune seat lamp on my Aethos. Nice design.
Yeah, I even thought of making a part like this because Tune stopped making those clamps and they are hard to find now. I think it is a bit "overengineered" for a seatclamp which is usually meant to be cheap and insignificant part, but here we have 2 carbon loops and 2 cnc-machined alu parts (along with the smallest bolt possible). It looks clean and small.
So its one of my favorite parts on a bike :D

Gary71
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Location: Brisbane Australia

by Gary71

spokenwords wrote:
Tue Oct 04, 2022 8:24 pm
Komarov wrote:
Tue Oct 04, 2022 8:57 am
spokenwords wrote:
Tue Oct 04, 2022 12:44 am
Also, can you make an exact replica of the Basso stem out of carbon and ti? asking for a friend.
I think the cost of even serially produced stem will be quite high (if not the highest) and copy of Basso stem will require hours of engineering work, costy 3d printing, moulds for custom carbon part... So yeah, of course I can do it, but it will cost thousands $ :D
I will let currie have first dibs then. :lol:
There would potentially be a market for it. I know I would sign up for it. I have searched far and wide looking for a low profile -12 or -17 carbon stem that is light. It doesn't exist. Perhaps the SL7 stem comes the closest, but they are like hens teeth in 120 length.

Komarov
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by Komarov

Gary71 wrote:
Thu Oct 06, 2022 9:44 pm
spokenwords wrote:
Tue Oct 04, 2022 8:24 pm
Komarov wrote:
Tue Oct 04, 2022 8:57 am
spokenwords wrote:
Tue Oct 04, 2022 12:44 am
Also, can you make an exact replica of the Basso stem out of carbon and ti? asking for a friend.
I think the cost of even serially produced stem will be quite high (if not the highest) and copy of Basso stem will require hours of engineering work, costy 3d printing, moulds for custom carbon part... So yeah, of course I can do it, but it will cost thousands $ :D
I will let currie have first dibs then. :lol:
There would potentially be a market for it. I know I would sign up for it. I have searched far and wide looking for a low profile -12 or -17 carbon stem that is light. It doesn't exist. Perhaps the SL7 stem comes the closest, but they are like hens teeth in 120 length.
*f##k*, I really googled "Hens teeth" to understand the meaning :D My biology teacher would be proud of me.

I see a bit of a engineering problem here: low stack = low stiffness. There is no way around it, its just geometry. And combined with quite an angle and length it would be hard to make it really lightweight.

You have to compensate with material for geometry.

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wheelsONfire
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by wheelsONfire

Gary71 wrote:
Thu Oct 06, 2022 9:44 pm
spokenwords wrote:
Tue Oct 04, 2022 8:24 pm
Komarov wrote:
Tue Oct 04, 2022 8:57 am
spokenwords wrote:
Tue Oct 04, 2022 12:44 am
Also, can you make an exact replica of the Basso stem out of carbon and ti? asking for a friend.
I think the cost of even serially produced stem will be quite high (if not the highest) and copy of Basso stem will require hours of engineering work, costy 3d printing, moulds for custom carbon part... So yeah, of course I can do it, but it will cost thousands $ :D
I will let currie have first dibs then. :lol:
There would potentially be a market for it. I know I would sign up for it. I have searched far and wide looking for a low profile -12 or -17 carbon stem that is light. It doesn't exist. Perhaps the SL7 stem comes the closest, but they are like hens teeth in 120 length.
A Basso fan might aswell buy the new combo from Basso. It's probably better if a -10 offering is working.
Bikes:

Ax Lightness Vial EVO Race (2018.12.21)
viewtopic.php?f=10&t=156137
Paduano Racing Fidia (kind of shelved)
Open *UP* (2016.04.14)


Ex bike; Vial EVO D

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