has taken about 3 attempts to get right.
The first one "KatRip" was made out of
Polycarbonate using standard drill
motors. Then KR2 came along with full
metal chassis and 4 standard drill
motors. The more I upgraded, got better
batteries ,then speed controllers, the
motors started to burn out. So it was
time to get some real motors and also to
try something new in the UK, so I
ordered some Dewalt Power Drives from
USA which are 1.5HP at 18v, but I'm
running them at 24v like other Robots in
the USA do, and the results have been
great so far.
The only reason why I got hold of the
Dewalt Power Drives was because we
managed to speak to
RobotPower.com and get them to
sponsor us one of their brand new speed
controllers called the Sidewinder.
KR3-SP2 was the first robot in the UK to
use one of them, and since then, many
other teams use them not only for their
feather weights, but also in their heavy
weights as they have great current
limiting and specs.
the main parts of the robot being made
out of 10mm Aircraft grade 2014
Aluminium, then 4mm Hardox bolted to the
outside with an invertible scoop so
either way, we can get under people and
push them to where I want them to go.
With in theory 3HP and grippy vulkerlon
wheels, we can get most of the power to
the floor, but not all of it with just a
top weight of 12kg sadly, but we give it
a good go.
Hardox outer shell is bolted to the
robot using 4 shock mounted bolts which
in theory stop most of the shock
transferring to the robots insides when
hit by a nasty spinning weapon, and so
far it has worked leaving the other
nasty spinner in a bit of trouble, with
only a scratch on us.
2 x 1.5HP
Dewalt Power Drives
2 x 12v
2400mAh NiCad's in series for
one - 20mph head on is enough!