Inferno was a last-minute substitution entry for The
Robotica TV show, when I decided that Towering
Inferno wouldn't be ready in time. He shares a few components
with some previous bots, but Mini Inferno's got his own personality
& style. My great pit crew members Christian Carlberg &
Lauren Herold helped tons during the short 45-minute allowed
repair periods and also helped me plan my strategies for the different
svelte 37lb of pure drivetrain (for fun, I weighed Mini Inferno
and me on the scale at Robotica and I still came
in well under the 210lb weight limit!). A simple 4-wheel drive
box with lots of battery power and some new overtaxed drill motors,
all packed in a 4" tall carbon fiber/aluminum body with various
spike & scoop attachment configurations. For the gauntlet
event, we taped down 40lb of steel weights that we "borrowed"
from a camera boom.
DETAILS : Mini
Inferno runs off of 4 drill motors and gearboxes. 2 Power-Sonic
12V 7Ah batteries in series provide 24V, 6V above the drills'
original 18V battery packs. Two Vantec RDFR23 speed controllers
run the motors--one runs the front pair, the other the back pair.
This redundancy is not only less stressful on my electronics,
but a single speed controller failure will not kill the robot
altogether, only slow it down. To help bust through the various
materials in the gauntlet, I machined a pair of spikes from 3/4"
drill rod and case-hardened their tips for durability. To provide
maximum scooping power for the sumo, maze, and gauntlet events,
I used some incredibly hard spring steel attachments to the carbon
fiber flaps. Between the spikes & the various flap options,
I was able to tailor Mini Inferno toward each opponent and each
Tool provided a few odds & ends needed to finalize
the bot. Shop facilities made available by UCSB
Mechanical & Environmental Engineering.