MiniSumo Events

Discussions around autonomous, semi-automatic and intelligent robots and systems.

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peterwaller
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MiniSumo Events

Post by peterwaller » Thu Jan 14, 2010 9:33 am

I have moved this discussion to here as we seem to be drifting into minisumo stuff.
We started running mini sumo at the AWS's for a while but it stopped through lack of entries. Apart from that there are the two micromouse each year in Birmingham but lately I have been the only one with working minisumo's. Low blow is a bit slow so far Insumountable has been the most successful. Although during testing (see below) my 3rd robot Stealth 2 could beat Insumountable it never has at a competition.
http://s109.photobucket.com/albums/n66/ ... h2vins.flv

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Post by thebeardedone » Thu Jan 14, 2010 2:13 pm

Wow, that is quick.

I would love to have a match against your minis, Peter. I daresay that Brains wouldn't do so well, but it would sure be interesting.

I, for one, will bring my mini to any events that I attend. I should have another by the Summer (this time I will program it), so if other people are happy to run it alongside then I will be happy to take part.

I am very much interested in the mini-sumo scene, it will be interesting to see what develops here :)

Regards,
Sam

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Post by peterwaller » Thu Jan 14, 2010 7:30 pm

Once you get into the programming you have to start thinking about strategy. Mine is fairly simple if you can't see the opsition drive until you reach the edge then scan right and left to see if you can see anthing if not drive off at a random angle util the edge is found again. If the opposition is found keep driving towards it. Here is a brief video showing it in practice.
http://s109.photobucket.com/albums/n66/ ... table3.flv

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Post by thebeardedone » Thu Jan 14, 2010 8:26 pm

That's a very effective strategy. I was thinking something along the lines of:

If opponent is detected;
surge toward opponent
If no opponent is detected;
turn on the spot
Repeat

It is similar to yours :-?

I plan to use a combination of "clever" programming and brute force to beat my opponent.

Regards,
Sam

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Team Orr
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Post by Team Orr » Fri Jan 15, 2010 5:13 pm

sorry to butt in here but i might as well let you guys know what im up to atm (havnt been very active here for a while)

those who read sor will know that iv been developing a little team of autonomous "sparing" bots that are aimed to help people who cant find anougher driver/or only have one robot practise against a "live" target instead of coke cans and stuff

as far as codes go it will be based on stampy (http://www.societyofrobots.com/robot_sumo.shtml) the sumo bot, it drives towards the opponent and then flips it over (see the above link to see what im on about :P)

somthing like this:

pseudocode:


//scanner code
if sharp IR detects object
scanning IR turns left
else //no object detected
scanning IR turns right
//robot motion code
if scanner is pointing far left
robot turns left
else if scanner is pointing far right
robot turns right
else //scanner pointing forward
robot drives straight


for parts im probably gonna be using:

HS-311 Servo
Sharp IR
HDPE
6V NiMH Battery
2 Foam Wheels
Spacers, screws, velcro
Two HS-225MG Servos


it is built out of hdpe and runs on servos, it should end up weighing about 175g, iv been toying with the idea of fitting weapons on to them (axe, flipper etc) but that can be added (and heres the big moment :P ) buyers will

yes i said buyer, once iv got them working i plan to sell a few, hopefully this will get people more interested in stuff like this :)

the robot should be sold at around ?130 so still cheap for beginners :)

il post some pics later :)

jack[/img]
"if it wasn't for Edison we'd be watching TV by candlelight"
Jack Orr
Team Orr Robotics

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Post by Andrew_Hibberd » Fri Jan 15, 2010 6:49 pm

I do like the idea of a scanning sensor, maybe its time to rebuild artifical stupidity into something that could work...
TEAM GEEK!

thebeardedone
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Post by thebeardedone » Fri Jan 15, 2010 8:21 pm

Team Orr wrote:
the robot should be sold at around ?130 so still cheap for beginners :)
Are you selling these assembled?

My sumo design cost just under ?30. I think that is a really reasonable cost to a beginner. You can get other kits such as the sumovore and others in the region of ?100.

I'm not saying that yours is over-priced (far from it ... you are using some pricey parts) but a lot of beginners would not want to invest ?130 into a bot design when others are available on the market for a lot less.

I hope you don't take this post in the wrong light, I'm just trying to spark new ideas 8)

Regards,
Sam

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Team Orr
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Post by Team Orr » Fri Jan 15, 2010 9:18 pm

yes they come fully asembled

you also have to take into consideration the price of postage from america and other far off contries, then the addition of weapons and the such, and my precious time rofl :lol:

having said that i could knock the price down i guess, im looking at it again and thinking that i could get it to about ?90+p&p, thats a bit better i think :)

by all means feel free to poke around a bit :P just helps make them better

oh, and this is starting to go completly off topic :P so il start a new thread :)

jack
"if it wasn't for Edison we'd be watching TV by candlelight"
Jack Orr
Team Orr Robotics

thebeardedone
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Post by thebeardedone » Fri Jan 15, 2010 10:08 pm

Team Orr wrote:yes they come fully asembled

you also have to take into consideration the price of postage from america and other far off contries, then the addition of weapons and the such, and my precious time rofl :lol:

having said that i could knock the price down i guess, im looking at it again and thinking that i could get it to about ?90+p&p, thats a bit better i think :)

by all means feel free to poke around a bit :P just helps make them better

oh, and this is starting to go completly off topic :P so il start a new thread :)

jack
Off Topic: Yeah, all of those factors you mention should contribute to the overall cost. Don't knock your price down for the sake of beating competition though. If you think your robot is worth ?130 then sell it for that :wink:

On Topic: Is anyone attending the RobotChallenge in Vienna this year? I will be there with Brains.

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Post by slurp » Mon Jan 18, 2010 12:50 pm

thebeardedone wrote:Off Topic: Yeah, all of those factors you mention should contribute to the overall cost. Don't knock your price down for the sake of beating competition though. If you think your robot is worth ?130 then sell it for that :wink:
I guess it takes time to design down to a cost, personally I've started using some low cost motor gearboxes from MUTR even with a controller and motor driver such as the L293 it chops a big cost out when compaired to Servos for drive.... they might not suit every one, just my choice ;)
On Topic: Is anyone attending the RobotChallenge in Vienna this year? I will be there with Brains.
I don't think I'll make it but in the past there's been a couple of users on the minisumo forum attend - RiO and sap1975

Best regards,
Colin

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Post by slurp » Mon Jan 18, 2010 1:09 pm

Just looking back at the initial thread....
thebeardedone wrote:Hmm, I have heard of LowBlow before ... can I ask what competitions have you entered in the past (if at all)?
There's been some discussion on the minisumo forum (here & here) as well as appearing at a number of Midlands Micromouse & Robotics Club events and Rise of the Robots at the National Space Centre in Leicester.

I'd be interested in links to Kristina Miles minisumo Black Widow.

Best regards,
Colin

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Post by thebeardedone » Mon Jan 18, 2010 1:30 pm

slurp wrote: I guess it takes time to design down to a cost, personally I've started using some low cost motor gearboxes from MUTR ... [snip]
I have looked at those motors in the past but settled on the Solarbotics GM3 for the time being, but they are so cheap I may as well get a couple to test.

I saw Kristina Miles' sumbot in the 'Robot Sumo: The Official Guide' book by Pete Miles. The emphasis in that book is on MCUs but that's why Black Widow instantly stood out at me. It was different to all the others.

Regards,
Sam

EDIT: The only links I can find are results from past competitions. The robot does consistently well considering it has no* object detection.

* NEW, NEW EDIT
Last edited by thebeardedone on Mon Jan 18, 2010 5:47 pm, edited 1 time in total.

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Post by slurp » Mon Jan 18, 2010 3:59 pm

thebeardedone wrote:I saw Kristina Miles' sumbot in the 'Robot Sumo: The Official Guide' book by Pete Miles.
I'd best blow the dust that book and have a look! :wink:

regards,
colin
Last edited by slurp on Sun Apr 04, 2010 12:50 pm, edited 1 time in total.

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Post by thebeardedone » Mon Jan 18, 2010 5:48 pm

slurp wrote:
I'd best blow the dust that book and have a look! :wink:

regards,
colin
I would. It's worth it :wink:

Regards,
Sam

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Post by slurp » Sun Apr 04, 2010 1:08 pm

I'm not sure about AWS32 but I'm certainly able to get toMillennium Point on 26th June.

I see Peter's talking about being there, I've been whipping AFM into shape. I need to give Peter a challenge for his title of UK Champion! It's mechanically sound now, just need some software tuning.

Then I'll be back to the Tamiya for circuit and mechanical mods... almost 3 months to go.

Who else is dusting down their Minisumo?

regards,
Colin

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