How to balance single tooth drum ?

                                                 How to balance single tooth drum ?
The single most problem faced by  Drum bot builders is BALANCING the drum as the geometry is asymmetric.
The only thing you have to keep in mind is that centre of mass should not be displaced from geometric COM. So that imbalance will not rise.
So here are few easy ways you can balance your drum :)
       * First Way:
            1. Make a CAD model of the part
            2. Then simply click "Find Centre of Mass" button in order to find geometric centre of mass of the drum.

not my design...but like this

MIT portfolio

       * Second Way :
           1. Generally the shapes are such that you can easily find the centre of mass just by using pen and paper.  

Weapon in Combat Robot

Weaponry

The best weapon is identified mainly by amount of energy it can store and impart it to the opponent!

If you look at that way, then best weapon would be the bot itself !!!

So mostly high velocity bots have advantage over low velocity bots but the disadvantage is that "With Great velocity comes great instability! " :P
 Here are few Weapon Design which you might want to choose for your bot.
Remember to choose wisely and keep in mind the surface of arena :)
1. Wedge :
The simplest design :)
This type of bot uses a wedge surface around it's bot in order to avoid head on attacks and at the same time it works as attacking weapon and shield for the bot.Generally preferred for high velocity bots.

Don't use this design if the surface of arena is n't flat.
Works best against lifters

2.Lifters

BioHazard

3.Spinner bots

4.Drum bots

Drum Weapon..not my design some cool dude made this ;)

5.Saw bots

Vertical Saw

Horizontal Saw

6.Flame Thrower bots

Sewer Snake 

7.Thwack bots
8.Spear bots
9.Hammer bots
10.Crusher bots

12.Launcher Bots


Update soon...

Here is a book you should check out :)

                                                            Combat Robot Weapons