To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.roboticsOpen lugnet.robotics in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / 19120
19119  |  19121
Subject: 
Re: Need to compare
Newsgroups: 
lugnet.robotics
Date: 
Sat, 28 Sep 2002 17:01:20 GMT
Original-From: 
Steve Baker <sjbaker1@airmail.netAVOIDSPAM>
Reply-To: 
(sjbaker1@)ihatespam(airmail.net)
Viewed: 
548 times
  
Vincent Raman wrote:
Thank you for your idea... but I forgot to say you that I have restriction
for the dimensions...

Dimensions : height : 30cm
                    Lenght : 60cm
                    width : 30cm

Is that the *initial* dimensions - or the *maximum* dimensions?

If it's just one of those things like "the robot must start off in a
box no bigger than 30x60x30" - then it can just fold itself up into
that space when they are doing the measuring - and stretch it's
legs outwards after the start.

Climbing a standard step (which is about 20cm) with a 30cm tall robot
seems pretty tricky to me.

Something like the "Shrimp" might do it...but the requirement to move
along a surface that's higher on one side than the other would be hard
for a Shrimp to manage.

I think the idea of a long legged robot would be the answer...especially
if the rules allow it to start off folded up into the 30cm height limit
and then stretch out to (say) twice that size to give it a chance to
climb a 20cm step.

And we can have 620 Euro's...

So that's about US$620...that's quite a generous limit!

That'll buy quite a bit of Lego (at US prices) - so you could certainly
consider a dual-RCX design with a butt-load of Pneumatics (unless Lego
is vastly expensive in your part of the planet).

----------------------------- Steve Baker -------------------------------
Mail : <sjbaker1@airmail.net>   WorkMail: <sjbaker@link.com>
URLs : http://www.sjbaker.org
        http://plib.sf.net http://tuxaqfh.sf.net http://tuxkart.sf.net
        http://prettypoly.sf.net http://freeglut.sf.net
        http://toobular.sf.net   http://lodestone.sf.net



Message has 3 Replies:
  Re: Need to compare
 
Thanks, Yes, it's the maximum dimensions... We have already seen the shrimp and we think to build something like that (maybe also with tri-star wheels)... But if somebody find a better solution, because we don't know the comportement of the shrimp (...) (22 years ago, 28-Sep-02, to lugnet.robotics)
  Re: Need to compare
 
(...) I like the tri-wheel design. If you make if big enough it shouldn't have any trouble. Something like this (or bigger): (URL)For the step, it begins at 1cm and it will be increased until no véhicule is (...) The advantage of an ODEX design. (...) (22 years ago, 28-Sep-02, to lugnet.robotics)
  Re: Need to compare
 
The following link may be of some use, it seems an interesteing design for climbing obstacles. (...) (22 years ago, 29-Sep-02, to lugnet.robotics)

Message is in Reply To:
  Re: Need to compare
 
Thank you for your idea... but I forgot to say you that I have restriction for the dimensions... Dimensions : height : 30cm Lenght : 60cm width : 30cm And we can have 620 Euro's... Bye Vincent ----- Original Message ----- From: "Mike Thorn" (...) (22 years ago, 28-Sep-02, to lugnet.robotics)

10 Messages in This Thread:



Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact

This Message and its Replies on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR