Just thinking about the tug of war ideas that have been floating around in the competitive but not primarily destructive fringe of out sport.
The thing I think needs decided is the height above the arena surface for the attaching point for the towing cable.
Does anyone know if such a rule already exists?
Would need a bit of tolerance, min and max. _________________ Satisfaction is proportional to effort and results.
Sun Aug 16, 2009 12:03 pm
Nick Experienced Roboteer
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
Not having seen any rules for this, I'd say either leave it up to each competitor or make it the axle hight on each bot. If there was a rule about an exact hight for the hitch, it would limit builder's creativity for new designs.
Sun Aug 16, 2009 3:00 pm
chrisjon65 Experienced Roboteer
Joined: 15 Jun 2004
Posts: 754
Location: blaxland
Ahh see the issue here.
A robot that has the rope hitched higher up has a diagonal lift advantage.
The robot with the higher hitch point would in jerking movements possibly lift the opponent in some way
if a steel plate with a pulley welded to it is placed in the middle with the rope going through it this should stop any lift advantage.If thats what it was regarding.Therefore the hitching height isnt an issue _________________ Photos - http://community.webshots.com/album/154092733uokpXC
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Wed Aug 19, 2009 7:59 am
Rotwang Experienced Roboteer
Joined: 15 Jun 2004
Posts: 1589
Location: Vic
Exactly.
If your opponent has really sticky tires, vacuum ground effects, nib magnets, huge power etc that’s all fair and part of the fun.
Just worried that if someone turns up with a 6 ft dragster with all the weight in the nose and a 3 ft high hitch people might start thinking unfair.
The size of the arena means the rope cant be too long, whoever has the highest hitch gets an advantage if they set their weight up right so it could quickly turn into a highest hitch rather than a lowest wedge contest. _________________ Satisfaction is proportional to effort and results.
Wed Aug 19, 2009 7:23 pm
shreddy
Joined: 09 Jan 2009
Posts: 518
Location: Wantirna, Melbourne
i always thought it would be best to have the mount as low as possible right in the middle, pulling all 4(or possibly more) wheels down.
wouldnt high mounts just pull the bot over? _________________ http://au.youtube.com/user/crustydemonsully
The day I stop giving 100%, is the day I stop competing
Wed Aug 19, 2009 7:26 pm
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
Instead of Tug-O-War, why not make it a pushing contest instead (like the sumos). Just make each robot have a flat vertical pushing panel on the front. Saves all the dramas of specifying hitch heights and rope lengths.
Wack some NIB magnets between them and you've got a setup that holds both bots together for an all out pushing match. _________________ https://www.halfdonethings.com/
Wed Aug 19, 2009 7:40 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Sounds like a boring way to explode escs... _________________ ( •_•)
A pulley in the center would stop the low bot getting lifted but the high bot might still get an advantage getting weight from the pulley.
As in the pulley will won’t to come up, it can’t so the high bot gets more weight to plant the tires. _________________ Satisfaction is proportional to effort and results.
Thu Aug 20, 2009 7:21 am
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