| From: | "Carioti, John" <john.carioti-at-sensis.com> |
| Subject: | RE: New video of my Centaur [TANKS] |
| Date: | Thu, 24 Aug 2006 08:30:14 -0400 |
| Reply-To: | tanks-at-rctankcombat.com |
|
The drive motors are NPC 64038. These
are 2 hp wheel chair motors that I had previously used in my 220 lb
Battlebot. They have the gearbox built in.
I'm running them at 24 volts. And I am
actually gearing them up a little to get more speed. The motor has a
voltage constant of 10 RPM/volt, so with my gearing the drive sprocket is
turning at about 325 RPM.
The chain is #40, and the drive axle is 1"
steel. All of this stuff was scavenged from my Battlebot
material.
I used EV warriors on a 120
lb Battlebot that I built last year. They worked OK and gave pretty
good speed, but they really aren't robust enough in the Battlebot world for a
speedy 120 lb bot. Especially if you use 4 wheel drive skid (or tank)
style steering. The motors are working really hard when you have to
drag one side through a turn. After a 3 minute match, the things
were red hot!
It seems like the EV warrior would work OK
for a 100 lb Tank, with the right gearing and with a little less duty
cycle. In the Battlebot world we are
shooting for at least 10 MPH, I think in the tank world 5 MPH is
pretty fast. So maybe that's why the EV warriors seem to be so
popular for the tank guys.
What kind of motors do you have in your
tank? 139 lbs seems very heavy!
|