Alcoholic Stepfather uses its strafing ability
to keep both the flamethrower and thick
steel wedge pointed at its opponents.
for cam walkers.
True walking robots are not
allowed to have a part in continuous
rotation resulting in the movement
of the robot. With the way the rules
are written, walking robots need to
have the components starting and
stopping during movement to be
given the weight bonus.
The high complexity of a system
like this at the scale of most fighting
robots makes them very difficult to
build, let alone win with.
You should choose a true
Mechadon was more a piece of art than a walker if you care more about
fighting robot, but still was able to use its
massive weight and sharp feet to crash making something cool than you
down on opponents back in the arly days of BattleBots. do about making something
Kung Fu Cow took advantage of the cam
walker bonus weight at some events to put a
much heavier and more powerful weapon into
the arena than would otherwise be possible.
at 45 degrees. The pushing power
losses are similar, and the system
works best with four wheels.
Beyond the wheels — which are
often custom made — this system is
a very simple way to take a normal
four wheel drive robot and give it
the ability to strafe.
Strafing with mecanum wheels
can either be done on the
transmitter or with a custom
mixing circuit which will need at
least three channels to function.
You should choose mecanum drive
if you want strafing ability while still
having your wheels mounted inline.
Cam walkers have their contact
surfaces mounted to cams, which
result in the contact surfaces rising
and falling as the shaft rotates.
Early in the history of robot
combat, this system was allowed to
have the full weight bonus given to
walking robots, but after a few
robots exploited the low weight
and high efficiency possible in a
system like this, they were ruled to
be essentially wheels making them
an unpopular choice for drive
systems as they are heavier and
less efficient than wheels in most
You should choose a cam
walker if you want form over
function, or if the event you are
attending gives a weight bonus
Driving the Points
Each drive system has a good
and bad side. In the end, you’re
best off choosing the drive system
you want and working to minimize
the negatives that come with it.
Efficiency and power are
wonderful things, but the best
drive system always has been and
always will be the one you want
to build. SV
Photos courtesy of BuildersDB
www.buildersdb.com) and the Robot
Results and Upcoming Events
Results Jul 13 –
Aug 11, 2008
on July 18th
and 19th at
Reading and Farnborough, UK.
House of Benson – Barnyard
Brawl was held by North
East Robotics Club on July 26th.
Twenty-eight bots were registered.
Blast 2008 was
held by D.W. Robots on July 12th.
Thirty-six bots were registered.
Upcoming: Oct-Nov 2008
Roaming Robots will hold events at
Portsmouth on October 4th, and
26 SERVO 10.2008