From anmic at fmg.sk  Fri Jul  6 16:01:59 2007
From: anmic at fmg.sk (anmic at fmg.sk)
Date: Fri, 6 Jul 2007 17:01:59 +0200 (CEST)
Subject: [Ronja] =?iso-8859-2?q?Nab=EDdka_2x_RX?=
Message-ID: <22640.193.179.168.144.1183734119.squirrel@server.iga-group.sk>

I'm sorry for the language of this post but it is intended for Czech
subscribers only.

Nabizim 2 RX moduly pro RONJU za symbolickou cenu. Mely byt na optickou
trasu, ktera uz nebude realizovana.
* airwire podle navodu
* stinene krabicky, osazene srouby
* jeden je osazen F konektorem, druhy ma navrtane otvory pro kabelove
pruchodky
* oba otestovane a plne funkcni

Zajemcum rad odpovim e-mailem mimo konferenci. Rad zaslu fotografie nebo
dalsi informace.

S pozdravem

Jan Matyas



From srnkap at extranetplus.cz  Fri Jul  6 18:08:46 2007
From: srnkap at extranetplus.cz (Pavel Srnka)
Date: Fri, 6 Jul 2007 19:08:46 +0200
Subject: [Ronja] =?iso-8859-1?q?Nab=EDdka_2x_RX?=
References: <22640.193.179.168.144.1183734119.squirrel@server.iga-group.sk>
Message-ID: <000901c7bff0$5036e6a0$0201a8c0@home885a295dd5>

nabizim 2rx 2tx moduly pro ronju s infra ledkama, vsechno na plosnaku

----- Original Message ----- 
From: <anmic na fmg.sk>
To: <ronja na lists.pointless.net>
Sent: Friday, July 06, 2007 5:01 PM
Subject: [Ronja] Nab?dka 2x RX


> I'm sorry for the language of this post but it is intended for Czech
> subscribers only.
>
> Nabizim 2 RX moduly pro RONJU za symbolickou cenu. Mely byt na optickou
> trasu, ktera uz nebude realizovana.
> * airwire podle navodu
> * stinene krabicky, osazene srouby
> * jeden je osazen F konektorem, druhy ma navrtane otvory pro kabelove
> pruchodky
> * oba otestovane a plne funkcni
>
> Zajemcum rad odpovim e-mailem mimo konferenci. Rad zaslu fotografie nebo
> dalsi informace.
>
> S pozdravem
>
> Jan Matyas
>
>
> -- 
> Twibright Ronja mailing list http://ronja.twibright.com
> Ronja na lists.pointless.net
> http://pointless.net/mailman/listinfo/ronja
> 




From eric.e.carson at gmail.com  Fri Jul 13 19:01:50 2007
From: eric.e.carson at gmail.com (Eric Carson)
Date: Fri, 13 Jul 2007 14:01:50 -0400
Subject: [Ronja] US Source for an ~130mm Glass Bi-Convex Lens
Message-ID: <f6d0cadf0707131101h4bdd7d5ci2766fa11e4a98bf6@mail.gmail.com>

Noticing that there were no listed sources for the US, and considering that
this would have solved my "Last Mile" problem while deployed to Afghanistan,
here is the fruits of my search.

Oriental Trading Company
Item# * IN-59/1016
*URL: http://www.orientaltrading.com:80/bpentry?BP=7727&sku=59/1016<http://www.orientaltrading.com/bpentry?BP=7727&sku=59/1016>
Price: ~8 USD per, ~7 USD per when buying 3 or more.
It is a folding magnifying assembly, yet the lens can be easily extracted.


On a different note, Has anyone experimented with the Fresnel Lens?  They
are generally cheaper and lighter, but could suffer from bad resolution and
possibly UV damage?
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From clock at twibright.com  Mon Jul 16 13:43:19 2007
From: clock at twibright.com (Karel Kulhavy)
Date: Mon, 16 Jul 2007 14:43:19 +0200
Subject: [Ronja] test
Message-ID: <20070716124319.GB26768@kestrel.barix.local>

test



From kubajz at kbx.cz  Mon Jul 16 14:37:02 2007
From: kubajz at kbx.cz (Jakub Sykora)
Date: Mon, 16 Jul 2007 15:37:02 +0200
Subject: [Ronja] test
In-Reply-To: <20070716124319.GB26768@kestrel.barix.local>
References: <20070716124319.GB26768@kestrel.barix.local>
Message-ID: <469B747E.90100@kbx.cz>

Test passed...

Karel Kulhavy wrote:
> test
> 
> 

-- 
Jakub S?kora
email: kubajz na kbx.cz       <')
ICQ: 68976632               ( =-
mobil: +420 777 594 201      ''


From clock at twibright.com  Mon Jul 16 16:43:34 2007
From: clock at twibright.com (Karel Kulhavy)
Date: Mon, 16 Jul 2007 17:43:34 +0200
Subject: [Ronja] Mailing list problems
Message-ID: <20070716154334.GA6737@kestrel.barix.local>

There was some problem with the Ronja mailing list, I couldn't send e-mails
but finally it got resolved.

Did you have any problems with the Ronja mailing list and if, then what kind?

CL<


From clock at twibright.com  Mon Jul 16 17:10:42 2007
From: clock at twibright.com (Karel Kulhavy)
Date: Mon, 16 Jul 2007 18:10:42 +0200
Subject: [Ronja] US Source for an ~130mm Glass Bi-Convex Lens
In-Reply-To: <200707142346.l6ENkmhj009806@twin.jikos.cz>
References: <200707142346.l6ENkmhj009806@twin.jikos.cz>
Message-ID: <20070716161042.GB25788@kestrel.barix.local>

On Fri, Jul 13, 2007 at 02:01:50PM -0400, Eric Carson wrote:
> Noticing that there were no listed sources for the US, and considering that
> this would have solved my "Last Mile" problem while deployed to Afghanistan,
> here is the fruits of my search.
> 
> Oriental Trading Company
> Item# * IN-59/1016
> *URL: 
> http://www.orientaltrading.com:80/bpentry?BP=7727&sku=59/1016<http://www.orientaltrading.com/bpentry?BP=7727&sku=59/1016>
> Price: ~8 USD per, ~7 USD per when buying 3 or more.
> It is a folding magnifying assembly, yet the lens can be easily extracted.

Thanks, added to the source list http://ronja.twibright.com/get/lens.php

> 
> 
> On a different note, Has anyone experimented with the Fresnel Lens?  They
> are generally cheaper and lighter, but could suffer from bad resolution and
> possibly UV damage?

Yes we have. Calculations from experimental data suggest that with a Fresnel
lens, the range could be increased to 3.0km.

CL<



From anmic at fmg.sk  Mon Jul 16 18:29:15 2007
From: anmic at fmg.sk (Jan Matyas)
Date: Mon, 16 Jul 2007 19:29:15 +0200
Subject: [Ronja] Mailing list problems
In-Reply-To: <20070716154334.GA6737@kestrel.barix.local>
References: <20070716154334.GA6737@kestrel.barix.local>
Message-ID: <469BAAEB.7050505@fmg.sk>

Karel Kulhavy napsal(a):
> but finally it got resolved.
> 
> Did you have any problems with the Ronja mailing list and if, then what kind?
> 

I sent a post several days ago but I have not received a copy back as usual.

JM

> CL<
> 


From eric.e.carson at gmail.com  Thu Jul 19 03:51:15 2007
From: eric.e.carson at gmail.com (Eric Carson)
Date: Wed, 18 Jul 2007 22:51:15 -0400
Subject: [Ronja] Mailing List issues
Message-ID: <f6d0cadf0707181951i19c7ed3dvfbe85c27ab794acc@mail.gmail.com>

No troubles wit the list thus far.  However this is the first I have
received since I submitted the US source for Optics
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From clock at twibright.com  Sun Jul 22 19:38:29 2007
From: clock at twibright.com (Karel Kulhavy)
Date: Sun, 22 Jul 2007 20:38:29 +0200
Subject: [Ronja] Open source skateboard demo pictures
Message-ID: <20070722183829.GA6261@kestrel.barix.local>

Hello

To prove that the open source skateboard is not just some untested theoretical
design, I learned some some pussie tricks on it and put pictures online.

http://ronja.twibright.com/bastard.php

I also got a positive review of Bastard from a friend who rides a flex
skateboard already for 14 years (I ride only for 2). He tried it out and said
it's cool. 

If you saw the Dogtown and Z-Boys movie, you know that the bert was originally
developed for the surfboard "platform" by Larry Bertlesmann and "ported" to
skateboard by Jay Adams, Tony alva et al. - the Z-Boys.

Unfortunately, after they succeeded at the Del Mar competition, they got bought
out and heavily commercialized so we cannot really expect anything opensource
from them. What Microsoft is in the world of software, they are in the world of
skateboarding. And not only them, but probably every single company of the
whole skateboarding industry.

Nice that you can/could buy a super-extra-special deck shaped and painted by
Powell-Peralta, Alva, Santa Cruz, Zero, Dogtown or whatever for 150 USD or so,
when you can make yourself one opensource from a plywood for 4 USD (plus 10 USD
griptape). Most of the know-how is in the template (in case of Bastard, there's
not yet much know how in the template ;-)). Why should you pay for something
that you can make yourself cheaper? The cutting takes 5 minutes.

Artwork? Do you really need to buy a proprietary label to get a decent artwork?
Doesn't the open source community have good artists that are as good as say
Crayg Stecyk? What's an artwork? All it needs to be is a .svg file under a GFDL
licence.

Bearings? Do you need really to buy expensive Bones Bearings, Swiss quality,
Made in California, USA (sic!), mirror finish to get a decent mechanic
performance? Aren't they just an overpriced version of an ordinary industry
grade ball bearing with a single rubber contactless seal?  Do you need to buy
SpeedCream(TM)? Can't you ride on medical vasoline like I do at the moment?

Seriously, are we paying skateboards here or managers, CEOs, adverts, SEO,
trademark and patent litigations, and lawyers?

Compare the price of Ronja components with a professional link and compare the
performance. Compare the price of an opensource deck and a commercial one and
their performance. Compare the price of Microsoft Windows and Linux and
compare their performance. Isn't something screeching here?

"Your board would come to a screeching halt and you'd fly. And you'd smash
cement." -- Stacey Peralta, Dogtown and Z-Boys.

CL<


From discover at fly.srk.fer.hr  Sun Jul 22 20:47:04 2007
From: discover at fly.srk.fer.hr (Silvije)
Date: Sun, 22 Jul 2007 21:47:04 +0200 (CEST)
Subject: [Ronja] Open source skateboard demo pictures
In-Reply-To: <20070722183829.GA6261@kestrel.barix.local>
References: <20070722183829.GA6261@kestrel.barix.local>
Message-ID: <Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>



This is nice, ronja, skateboard, linux...

Now all we need is open source power source. I am sick of paying
bills to the power company...

Any ideas?

s.


On Sun, 22 Jul 2007, Karel Kulhavy wrote:

> Hello
>
> To prove that the open source skateboard is not just some untested theoretical
> design, I learned some some pussie tricks on it and put pictures online.
>
> http://ronja.twibright.com/bastard.php
>
> I also got a positive review of Bastard from a friend who rides a flex
> skateboard already for 14 years (I ride only for 2). He tried it out and said
> it's cool.
>
> If you saw the Dogtown and Z-Boys movie, you know that the bert was originally
> developed for the surfboard "platform" by Larry Bertlesmann and "ported" to
> skateboard by Jay Adams, Tony alva et al. - the Z-Boys.
>
> Unfortunately, after they succeeded at the Del Mar competition, they got bought
> out and heavily commercialized so we cannot really expect anything opensource
> from them. What Microsoft is in the world of software, they are in the world of
> skateboarding. And not only them, but probably every single company of the
> whole skateboarding industry.
>
> Nice that you can/could buy a super-extra-special deck shaped and painted by
> Powell-Peralta, Alva, Santa Cruz, Zero, Dogtown or whatever for 150 USD or so,
> when you can make yourself one opensource from a plywood for 4 USD (plus 10 USD
> griptape). Most of the know-how is in the template (in case of Bastard, there's
> not yet much know how in the template ;-)). Why should you pay for something
> that you can make yourself cheaper? The cutting takes 5 minutes.
>
> Artwork? Do you really need to buy a proprietary label to get a decent artwork?
> Doesn't the open source community have good artists that are as good as say
> Crayg Stecyk? What's an artwork? All it needs to be is a .svg file under a GFDL
> licence.
>
> Bearings? Do you need really to buy expensive Bones Bearings, Swiss quality,
> Made in California, USA (sic!), mirror finish to get a decent mechanic
> performance? Aren't they just an overpriced version of an ordinary industry
> grade ball bearing with a single rubber contactless seal?  Do you need to buy
> SpeedCream(TM)? Can't you ride on medical vasoline like I do at the moment?
>
> Seriously, are we paying skateboards here or managers, CEOs, adverts, SEO,
> trademark and patent litigations, and lawyers?
>
> Compare the price of Ronja components with a professional link and compare the
> performance. Compare the price of an opensource deck and a commercial one and
> their performance. Compare the price of Microsoft Windows and Linux and
> compare their performance. Isn't something screeching here?
>
> "Your board would come to a screeching halt and you'd fly. And you'd smash
> cement." -- Stacey Peralta, Dogtown and Z-Boys.
>
> CL<
>
> -- 
> Twibright Ronja mailing list http://ronja.twibright.com
> Ronja at lists.pointless.net
> http://pointless.net/mailman/listinfo/ronja
>


From cd930 at centrum.cz  Mon Jul 23 02:24:33 2007
From: cd930 at centrum.cz (-=RYS=-)
Date: Mon, 23 Jul 2007 03:24:33 +0200
Subject: [Ronja] Open source skateboard demo pictures
In-Reply-To: <Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>
References: 20070722183829.GA6261@kestrel.barix.local>
	<20070722183829.GA6261@kestrel.barix.local>
	<Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>
Message-ID: <200707230324.23987@centrum.cz>

And GNU project? Hydrogen-Tritium A-bomb?? :)))))
In future:??ronja, skateboard, linux, Hydrogen bomb, GNU Hamburger....


______________________________________________________________
> Od: discover na fly.srk.fer.hr
> Komu: ronja na lists.pointless.net
> Datum: 22.07.2007 22:08
> P?edm?t: Re: [Ronja] Open source skateboard demo pictures
>
>
>
>This is nice, ronja, skateboard, linux...
>
>Now all we need is open source power source. I am sick of paying
>bills to the power company...
>
>Any ideas?
>
>s.
>
>
>On Sun, 22 Jul 2007, Karel Kulhavy wrote:
>
>> Hello
>>
>> To prove that the open source skateboard is not just some untested theoretical
>> design, I learned some some pussie tricks on it and put pictures online.
>>
>> http://ronja.twibright.com/bastard.php
>>
>> I also got a positive review of Bastard from a friend who rides a flex
>> skateboard already for 14 years (I ride only for 2). He tried it out and said
>> it's cool.
>>
>> If you saw the Dogtown and Z-Boys movie, you know that the bert was originally
>> developed for the surfboard "platform" by Larry Bertlesmann and "ported" to
>> skateboard by Jay Adams, Tony alva et al. - the Z-Boys.
>>
>> Unfortunately, after they succeeded at the Del Mar competition, they got bought
>> out and heavily commercialized so we cannot really expect anything opensource
>> from them. What Microsoft is in the world of software, they are in the world of
>> skateboarding. And not only them, but probably every single company of the
>> whole skateboarding industry.
>>
>> Nice that you can/could buy a super-extra-special deck shaped and painted by
>> Powell-Peralta, Alva, Santa Cruz, Zero, Dogtown or whatever for 150 USD or so,
>> when you can make yourself one opensource from a plywood for 4 USD (plus 10 USD
>> griptape). Most of the know-how is in the template (in case of Bastard, there's
>> not yet much know how in the template ;-)). Why should you pay for something
>> that you can make yourself cheaper? The cutting takes 5 minutes.
>>
>> Artwork? Do you really need to buy a proprietary label to get a decent artwork?
>> Doesn't the open source community have good artists that are as good as say
>> Crayg Stecyk? What's an artwork? All it needs to be is a .svg file under a GFDL
>> licence.
>>
>> Bearings? Do you need really to buy expensive Bones Bearings, Swiss quality,
>> Made in California, USA (sic!), mirror finish to get a decent mechanic
>> performance? Aren't they just an overpriced version of an ordinary industry
>> grade ball bearing with a single rubber contactless seal? ?Do you need to buy
>> SpeedCream(TM)? Can't you ride on medical vasoline like I do at the moment?
>>
>> Seriously, are we paying skateboards here or managers, CEOs, adverts, SEO,
>> trademark and patent litigations, and lawyers?
>>
>> Compare the price of Ronja components with a professional link and compare the
>> performance. Compare the price of an opensource deck and a commercial one and
>> their performance. Compare the price of Microsoft Windows and Linux and
>> compare their performance. Isn't something screeching here?
>>
>> "Your board would come to a screeching halt and you'd fly. And you'd smash
>> cement." -- Stacey Peralta, Dogtown and Z-Boys.
>>
>> CL<
>>
>> -- 
>> Twibright Ronja mailing list http://ronja.twibright.com
>> Ronja na lists.pointless.net
>> http://pointless.net/mailman/listinfo/ronja
>>
>
>-- 
>Twibright Ronja mailing list http://ronja.twibright.com
>Ronja na lists.pointless.net
>http://pointless.net/mailman/listinfo/ronja
> 


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URL: http://pointless.net/pipermail/ronja/attachments/20070723/55d3ab15/attachment.html 

From aristotle at internode.on.net  Mon Jul 23 02:30:10 2007
From: aristotle at internode.on.net (Aristotle)
Date: Mon, 23 Jul 2007 11:30:10 +1000
Subject: [Ronja] Open source skateboard demo pictures
In-Reply-To: <200707230324.23987@centrum.cz>
References: 20070722183829.GA6261@kestrel.barix.local><20070722183829.GA6261@kestrel.barix.local><Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>
	<200707230324.23987@centrum.cz>
Message-ID: <010001c7ccc9$02c05380$3201a8c0@gaia>

How about a open source biodiesel project?

 

Oil prices going up, may as well use disposed MacDonalds cooking oil for
ourselves, for heating, electricity or transport.

 

I wonder if fuel cells could be used with biodiesel.

 

  _____  

From: ronja-bounces+aristotle=internode.on.net at lists.pointless.net
[mailto:ronja-bounces+aristotle=internode.on.net at lists.pointless.net] On
Behalf Of -=RYS=-
Sent: Monday, 23 July 2007 11:25 AM
To: ronja at lists.pointless.net
Subject: Re: [Ronja] Open source skateboard demo pictures

 

And GNU project  Hydrogen-Tritium A-bomb?  :)))))

 

In future:  ronja, skateboard, linux, Hydrogen bomb, GNU Hamburger....


______________________________________________________________
> Od: discover at fly.srk.fer.hr
> Komu: ronja at lists.pointless.net
> Datum: 22.07.2007 22:08
> P?edm?t: Re: [Ronja] Open source skateboard demo pictures
>
>
>
>This is nice, ronja, skateboard, linux...
>
>Now all we need is open source power source. I am sick of paying
>bills to the power company...
>
>Any ideas?
>
>s.
>
>
>On Sun, 22 Jul 2007, Karel Kulhavy wrote:
>
>> Hello
>>
>> To prove that the open source skateboard is not just some untested
theoretical
>> design, I learned some some pussie tricks on it and put pictures online.
>>
>> http://ronja.twibright.com/bastard.php
>>
>> I also got a positive review of Bastard from a friend who rides a flex
>> skateboard already for 14 years (I ride only for 2). He tried it out and
said
>> it's cool.
>>
>> If you saw the Dogtown and Z-Boys movie, you know that the bert was
originally
>> developed for the surfboard "platform" by Larry Bertlesmann and "ported"
to
>> skateboard by Jay Adams, Tony alva et al. - the Z-Boys.
>>
>> Unfortunately, after they succeeded at the Del Mar competition, they got
bought
>> out and heavily commercialized so we cannot really expect anything
opensource
>> from them. What Microsoft is in the world of software, they are in the
world of
>> skateboarding. And not only them, but probably every single company of
the
>> whole skateboarding industry.
>>
>> Nice that you can/could buy a super-extra-special deck shaped and painted
by
>> Powell-Peralta, Alva, Santa Cruz, Zero, Dogtown or whatever for 150 USD
or so,
>> when you can make yourself one opensource from a plywood for 4 USD (plus
10 USD
>> griptape). Most of the know-how is in the template (in case of Bastard,
there's
>> not yet much know how in the template ;-)). Why should you pay for
something
>> that you can make yourself cheaper? The cutting takes 5 minutes.
>>
>> Artwork? Do you really need to buy a proprietary label to get a decent
artwork?
>> Doesn't the open source community have good artists that are as good as
say
>> Crayg Stecyk? What's an artwork? All it needs to be is a .svg file under
a GFDL
>> licence.
>>
>> Bearings? Do you need really to buy expensive Bones Bearings, Swiss
quality,
>> Made in California, USA (sic!), mirror finish to get a decent mechanic
>> performance? Aren't they just an overpriced version of an ordinary
industry
>> grade ball bearing with a single rubber contactless seal?  Do you need to
buy
>> SpeedCream(TM)? Can't you ride on medical vasoline like I do at the
moment?
>>
>> Seriously, are we paying skateboards here or managers, CEOs, adverts,
SEO,
>> trademark and patent litigations, and lawyers?
>>
>> Compare the price of Ronja components with a professional link and
compare the
>> performance. Compare the price of an opensource deck and a commercial one
and
>> their performance. Compare the price of Microsoft Windows and Linux and
>> compare their performance. Isn't something screeching here?
>>
>> "Your board would come to a screeching halt and you'd fly. And you'd
smash
>> cement." -- Stacey Peralta, Dogtown and Z-Boys.
>>
>> CL<
>>
>> -- 
>> Twibright Ronja mailing list http://ronja.twibright.com
<http://ronja.twibright.com/> 
>> Ronja at lists.pointless.net
>> http://pointless.net/mailman/listinfo/ronja
>>
>
>-- 
>Twibright Ronja mailing list http://ronja.twibright.com
<http://ronja.twibright.com/> 
>Ronja at lists.pointless.net
>http://pointless.net/mailman/listinfo/ronja
> 

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From kubajz at kbx.cz  Mon Jul 23 06:23:24 2007
From: kubajz at kbx.cz (Jakub Sykora)
Date: Mon, 23 Jul 2007 07:23:24 +0200
Subject: [Ronja] Open source skateboard demo pictures
In-Reply-To: <010001c7ccc9$02c05380$3201a8c0@gaia>
References: 20070722183829.GA6261@kestrel.barix.local><20070722183829.GA6261@kestrel.barix.local><Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>	<200707230324.23987@centrum.cz>
	<010001c7ccc9$02c05380$3201a8c0@gaia>
Message-ID: <46A43B4C.7030003@kbx.cz>

The answer is YES, they can. The design is quite simple and was 
introduced in carbid lanterns.

K

Aristotle wrote:
> How about a open source biodiesel project?
> 
>  
> 
> Oil prices going up, may as well use disposed MacDonalds cooking oil for 
> ourselves, for heating, electricity or transport.
> 
>  
> 
> I wonder if fuel cells could be used with biodiesel.
> 
>  
> 
> ------------------------------------------------------------------------
> 
> *From:* ronja-bounces+aristotle=internode.on.net na lists.pointless.net 
> [mailto:ronja-bounces+aristotle=internode.on.net na lists.pointless.net] 
> *On Behalf Of *-=RYS=-
> *Sent:* Monday, 23 July 2007 11:25 AM
> *To:* ronja na lists.pointless.net
> *Subject:* Re: [Ronja] Open source skateboard demo pictures
> 
>  
> 
> And GNU project  Hydrogen-Tritium A-bomb?  :)))))
> 
>  
> 
> In future:  ronja, skateboard, linux, Hydrogen bomb, GNU Hamburger....
> 
> 
> ______________________________________________________________
>>  Od: discover na fly.srk.fer.hr
>>  Komu: ronja na lists.pointless.net
>>  Datum: 22.07.2007 22:08
>>  P?edm?t: Re: [Ronja] Open source skateboard demo pictures
>>
>>
>>
>>This is nice, ronja, skateboard, linux...
>>
>>Now all we need is open source power source. I am sick of paying
>>bills to the power company...
>>
>>Any ideas?
>>
>>s.
>>
>>
>>On Sun, 22 Jul 2007, Karel Kulhavy wrote:
>>
>> > Hello
>> >
>> > To prove that the open source skateboard is not just some untested 
> theoretical
>> > design, I learned some some pussie tricks on it and put pictures online.
>> >
>> > http://ronja.twibright.com/bastard.php
>> >
>> > I also got a positive review of Bastard from a friend who rides a flex
>> > skateboard already for 14 years (I ride only for 2). He tried it out 
> and said
>> > it's cool.
>> >
>> > If you saw the Dogtown and Z-Boys movie, you know that the bert was 
> originally
>> > developed for the surfboard "platform" by Larry Bertlesmann and 
> "ported" to
>> > skateboard by Jay Adams, Tony alva et al. - the Z-Boys.
>> >
>> > Unfortunately, after they succeeded at the Del Mar competition, they 
> got bought
>> > out and heavily commercialized so we cannot really expect anything 
> opensource
>> > from them. What Microsoft is in the world of software, they are in 
> the world of
>> > skateboarding. And not only them, but probably every single company 
> of the
>> > whole skateboarding industry.
>> >
>> > Nice that you can/could buy a super-extra-special deck shaped and 
> painted by
>> > Powell-Peralta, Alva, Santa Cruz, Zero, Dogtown or whatever for 150 
> USD or so,
>> > when you can make yourself one opensource from a plywood for 4 USD 
> (plus 10 USD
>> > griptape). Most of the know-how is in the template (in case of 
> Bastard, there's
>> > not yet much know how in the template ;-)). Why should you pay for 
> something
>> > that you can make yourself cheaper? The cutting takes 5 minutes.
>> >
>> > Artwork? Do you really need to buy a proprietary label to get a 
> decent artwork?
>> > Doesn't the open source community have good artists that are as good 
> as say
>> > Crayg Stecyk? What's an artwork? All it needs to be is a .svg file 
> under a GFDL
>> > licence.
>> >
>> > Bearings? Do you need really to buy expensive Bones Bearings, Swiss 
> quality,
>> > Made in California, USA (sic!), mirror finish to get a decent mechanic
>> > performance? Aren't they just an overpriced version of an ordinary 
> industry
>> > grade ball bearing with a single rubber contactless seal?  Do you 
> need to buy
>> > SpeedCream(TM)? Can't you ride on medical vasoline like I do at the 
> moment?
>> >
>> > Seriously, are we paying skateboards here or managers, CEOs, adverts, 
> SEO,
>> > trademark and patent litigations, and lawyers?
>> >
>> > Compare the price of Ronja components with a professional link and 
> compare the
>> > performance. Compare the price of an opensource deck and a commercial 
> one and
>> > their performance. Compare the price of Microsoft Windows and Linux and
>> > compare their performance. Isn't something screeching here?
>> >
>> > "Your board would come to a screeching halt and you'd fly. And you'd 
> smash
>> > cement." -- Stacey Peralta, Dogtown and Z-Boys.
>> >
>> > CL<
>> >
>> > --
>> > Twibright Ronja mailing list http://ronja.twibright.com 
> <http://ronja.twibright.com/>
>> > Ronja na lists.pointless.net
>> > http://pointless.net/mailman/listinfo/ronja
>> >
>>
>>-- 
>>Twibright Ronja mailing list http://ronja.twibright.com 
> <http://ronja.twibright.com/>
>>Ronja na lists.pointless.net
>>http://pointless.net/mailman/listinfo/ronja
>>
> 

-- 
Jakub S?kora
email: kubajz na kbx.cz       <')
ICQ: 68976632               ( =-
mobil: +420 777 594 201      ''


From clock at twibright.com  Mon Jul 23 08:46:33 2007
From: clock at twibright.com (Karel Kulhavy)
Date: Mon, 23 Jul 2007 09:46:33 +0200
Subject: [Ronja] Open source skateboard demo pictures
In-Reply-To: <Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>
References: <20070722183829.GA6261@kestrel.barix.local>
	<Pine.LNX.4.64.0707222145220.32364@fly.srk.fer.hr>
Message-ID: <20070723074633.GA9006@kestrel.barix.local>

On Sun, Jul 22, 2007 at 09:47:04PM +0200, Silvije wrote:
> 
> 
> This is nice, ronja, skateboard, linux...
> 
> Now all we need is open source power source. I am sick of paying
> bills to the power company...
> 
> Any ideas?

Exciter? http://ronja.twibright.com/exciter/

Not only you can power your PC, but you also get eventually a sixpack for free.
So when you go to the beach and all the surfers point a finger at you and ask
"ZOMG WTF what did you get this body dude from?" then you say "I sit at a
computer all day every day".

Have I actually already announced Exciter on this list?

CL<


From clock at twibright.com  Wed Jul 25 16:24:54 2007
From: clock at twibright.com (Karel Kulhavy)
Date: Wed, 25 Jul 2007 17:24:54 +0200
Subject: [Ronja] Improvement in mechanics
Message-ID: <20070725152454.GA21421@kestrel.barix.local>

I have changed RX (both red and infrared) and TX to use mounting brackets
instead of the screws.

The mounting brackets are made from tin. The disadvantage of the screws were:
- necessary to deform the pipe, in case of 100mm pipe this resulted in severe
  permanent deformation
- cannot be exchanged without desoldering components

The mounting barrels that were in TX had the following disadvantages:
- their fore/aftp angle cannot be adjusted with PCB soldered in
- they take away too much heat during soldering
- they are labour intensive to manufacture

Unfortunately I don't have any pictures with mounting brackets yet if you are
going to build something please send me so I can replace the old pictures. Now
they are everywhere (hopefully) marked as that there should be mounting
brackets in the pictures.

CL<


From jakub.michnik at centrum.cz  Tue Jul 31 21:50:02 2007
From: jakub.michnik at centrum.cz (=?ISO-8859-1?Q?Jakub_Michn=EDk?=)
Date: Tue, 31 Jul 2007 22:50:02 +0200
Subject: [Ronja] Twister 2
In-Reply-To: <20070725152454.GA21421@kestrel.barix.local>
References: <20070725152454.GA21421@kestrel.barix.local>
Message-ID: <46AFA07A.7010005@centrum.cz>

zdravim

pomalu se poustim do stavby twistru dva. chci se zeptat proc se pouzil 
tak drahy stabilizator a proc tam neni stary dobry znamy 7805? a pak ty 
civky 47nH ? je to tam nutne? v katalogu GM jsem je nenasel a vubec, tak 
mala indukcnost by sla vytvorit na DPS nebo ne? jeste je skoda ze se 
nevleze do AH-303 :(... kdo ste uz twistra dva staveli a jake s nim mate 
zkusenosti?

diky, Kubas