Berk PROTO-TYPE Composites

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basilic
Posts: 652
Joined: Wed Jan 05, 2011 8:05 am
Location: Geneva, Switzerland

by basilic

saddle looks great, congrats.
Would you show the profile of the saddle left to right, how flat or dome-shaped it is?
About at the level of the sit bones. Thanks!


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Berk
Carbon Cowboy
Posts: 1152
Joined: Sat Sep 04, 2010 7:20 pm
Location: Slovenia

by Berk

Hi, glad to hear that you like it! In general it's very similar to an Selle Italia SLR saddle.

Otherwise I already made another new prototype saddle shell - only 27.5g:
Image

Image

I calculated that the saddle rails should weight around 35g, and I'll have to experiment a bit more with those saddle shells. I'll make some new prototypes that will be a bit more reinforced (~35g saddle shell) and test them,..I'll keep you updated.

Otherwise there are still some small problems with the saddle rails moulds (it has to be a bit redesigned), but it will be soon redesigned and then hopefully it will soon go in process...I'll also make a wider (142mm) saddle shell at the same time when the saddle rails moulds will be made, I'll keep you updated!
Berk PROTO-TYPE Composites - Handmade In Slovenia
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dwaharvey
Posts: 493
Joined: Thu Oct 26, 2006 8:54 pm
Location: USA

by dwaharvey

That's a work of art :) Looking forward to seeing this project move forward.

Are the rails going to be round 7mm (eg Dash) or eliptical (eg Selle Italia)?

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Berk
Carbon Cowboy
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Joined: Sat Sep 04, 2010 7:20 pm
Location: Slovenia

by Berk

Thanks for the compliments!

It will be completely round (7mm :thumbup: ) to avoid any possible problems with the clamping mechanism.
Berk PROTO-TYPE Composites - Handmade In Slovenia
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NGMN
Posts: 1536
Joined: Mon May 30, 2005 7:13 am

by NGMN

Thats amazing! Boom!

timj
Posts: 16
Joined: Fri Apr 29, 2011 5:40 pm

by timj

amazing work as usual and thanks for sharing detailed photos of the process! Very interesting stuff

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Berk
Carbon Cowboy
Posts: 1152
Joined: Sat Sep 04, 2010 7:20 pm
Location: Slovenia

by Berk

No problem, I give my best to keep you updated as much as possible. And thanks for all your comments, really appreciate that! Otherwise any opinions, thoughts etc. are welcome and we can discuss it here.

In the next few days I'll design the wider saddle (I'll make it ~142mm) and hopefully also the moulds for the saddle rails will be then ok - it also has to be a bit redesigned. It's already the third time when we had to put our heads together with GorjupDesign to solve the problem, so in the next few days we'll meet again and hopefully finally made all the work that has to be done that it will work on the CNC machine...can't wait to make some more progress, I'll for sure keep you updated!
Berk PROTO-TYPE Composites - Handmade In Slovenia
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trustbran
Posts: 129
Joined: Tue Apr 19, 2011 10:07 pm

by trustbran

Now that's lookin good!!! You surely have great work!

addictR1
Posts: 1258
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

berk.. that is really sexy. what width will you have it available in? 130, 143, 155mm?

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Berk
Carbon Cowboy
Posts: 1152
Joined: Sat Sep 04, 2010 7:20 pm
Location: Slovenia

by Berk

Thanks!
I already have the 130mm mould, and I'll make also a wider saddle (~142mm).
Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
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addictR1
Posts: 1258
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

i have a small butt with wide seatbone.. go figures... but would like to see it in 155mm. :)

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Mattias Hellöre
in the industry
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Joined: Fri Sep 23, 2005 6:34 pm
Location: Insjön, SWEDEN
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by Mattias Hellöre

Why did you choose Innegra over Aramid/Kevlar?
Experimental Prototype

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Berk
Carbon Cowboy
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Joined: Sat Sep 04, 2010 7:20 pm
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by Berk

I choose it because it has similar properties than kevlar, and when you cut/sand the composite product that has innegra (instead of kevlar) the edges won't "scuff" that much, if you know what I mean.

And it's something new - didn't saw yet any saddle that would use that fabric, I also really like the look of it. I also love to experiment with different materials etc.,..I'll see how it will turn out once I finish the first prototype saddles.
Berk PROTO-TYPE Composites - Handmade In Slovenia
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Mattias Hellöre
in the industry
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by Mattias Hellöre

I don´t like sanding on kevlar at all, it will be bulbous and not cut clean with sand paper as you said. Cut it with scissors is OK but not sanding.
Experimental Prototype


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Berk
Carbon Cowboy
Posts: 1152
Joined: Sat Sep 04, 2010 7:20 pm
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by Berk

Kevlar really isn't nice to work with, there are also less problems with innegra while cutting/preparing the material. Otherwise innegra is more expensive than kevlar, well of course it depends from the quality you get. But I'm almost sure that I won't use kevlar anymore in products like these,.. I also get some other new materials to experiment with, but will tell more about it as soon as I manage to use it in some products.
Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
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