Spinnerness...
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- bitternboy
- Posts: 759
- Joined: Sat Jun 06, 2009 7:36 pm
- Location: Sheffield
After AWS, I've been thinking about any new robot I may make. Jigsaw won because a) it had a good flipper, b) it was well driven and c) it got under everything.
I think I may focus on this last quality for a potential alternative to a spinner i.e. a 2 wheel push bot done properly.
I have therefore been looking around for suitible micro air pumps to put on the undeside at the front to "suck" the front end down and stop anyone getting under it. I know scott made a version of void with such a system and don't know what he used but so far I have found these:
http://www.smartproducts.com/pumps_seri ... _pumps.php
Which are good if only they would take higher voltages (running a motor with a nominal V of 3 at 7.2v probably wouldn't be a good idea) and so would need a regulator. Does anyone know of a micropump that has a realistic weight and size but takes 6 volts?
I think I may focus on this last quality for a potential alternative to a spinner i.e. a 2 wheel push bot done properly.
I have therefore been looking around for suitible micro air pumps to put on the undeside at the front to "suck" the front end down and stop anyone getting under it. I know scott made a version of void with such a system and don't know what he used but so far I have found these:
http://www.smartproducts.com/pumps_seri ... _pumps.php
Which are good if only they would take higher voltages (running a motor with a nominal V of 3 at 7.2v probably wouldn't be a good idea) and so would need a regulator. Does anyone know of a micropump that has a realistic weight and size but takes 6 volts?
Jonathan Atkinson
Before you criticize another person, first walk a mile in their shoes. Then, when you critisize them, you'll be a mile away and have their shoes.
Before you criticize another person, first walk a mile in their shoes. Then, when you critisize them, you'll be a mile away and have their shoes.
- earthwormjim
- Posts: 1190
- Joined: Thu Sep 16, 2010 4:57 pm
- Location: Secret Undisclosed Moonbase Location
A fan sucking the bot to the ground would be easier.
The Brabham BT46 F1 car did this in 1978. You can see the big fan on the back here...
http://en.wikipedia.org/wiki/Brabham_BT46
It was immediately banned after winning its first race!!
I think that this idea could be used realistically in an antweight?!?!
The Brabham BT46 F1 car did this in 1978. You can see the big fan on the back here...
http://en.wikipedia.org/wiki/Brabham_BT46
It was immediately banned after winning its first race!!
I think that this idea could be used realistically in an antweight?!?!
-
- Posts: 3716
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- Location: Antrim, Northern Ireland
- Contact:
It's been done successfully already Jim. Vacuum from SWEDEN, Pete Waller's Succulant and Smartant 2 and 3 all had vacuum pumps to stick them to the floor. In fact, Smartant 3 was a walking, full body spinner with a vacuum cup on each foot! We had to fight it with a clusterbot at AWS18, that was fun.I think that this idea could be used realistically in an antweight?!?!
Last edited by Remote-Controlled Dave on Mon Nov 01, 2010 2:05 pm, edited 1 time in total.
Die Gracefully Robotics
Winner - AWS 39
Winner - AWS 39
- earthwormjim
- Posts: 1190
- Joined: Thu Sep 16, 2010 4:57 pm
- Location: Secret Undisclosed Moonbase Location
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- Posts: 3716
- Joined: Sun Apr 03, 2005 5:30 pm
- Location: Antrim, Northern Ireland
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- bitternboy
- Posts: 759
- Joined: Sat Jun 06, 2009 7:36 pm
- Location: Sheffield
Anyway, It all comes down to how much suction you need. Too much and you cant move, too little and you might as well not have bothered. I think the smallest one on the page I linked would suit, yes?
Jonathan Atkinson
Before you criticize another person, first walk a mile in their shoes. Then, when you critisize them, you'll be a mile away and have their shoes.
Before you criticize another person, first walk a mile in their shoes. Then, when you critisize them, you'll be a mile away and have their shoes.
- peterwaller
- Posts: 3213
- Joined: Fri Feb 15, 2002 12:00 am
- Location: Aylesbury Bucks
- Contact:
It is rather tricky although I have been contemplating revisiting it again.
I found that pulling down the front didn't move the only way I could get it to move was to pull down around the drive axis so the load went through the wheels and increased the grip.
Succulant
http://i109.photobucket.com/albums/n66/ ... 140213.jpg
Underneath
http://i109.photobucket.com/albums/n66/ ... 140216.jpg
Diagram of suction pad
http://i109.photobucket.com/albums/n66/ ... tion-1.jpg
An idea of how many attempts it took to get a working unit
http://i109.photobucket.com/albums/n66/ ... 140219.jpg
I found that pulling down the front didn't move the only way I could get it to move was to pull down around the drive axis so the load went through the wheels and increased the grip.
Succulant
http://i109.photobucket.com/albums/n66/ ... 140213.jpg
Underneath
http://i109.photobucket.com/albums/n66/ ... 140216.jpg
Diagram of suction pad
http://i109.photobucket.com/albums/n66/ ... tion-1.jpg
An idea of how many attempts it took to get a working unit
http://i109.photobucket.com/albums/n66/ ... 140219.jpg