BATTLEBOTS
SEASON 5.0 SAN FRANCISCO [MAY 02]
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After losing to powerful horizontal spinner Ripkin in the prelims,
Towering Inferno looks to be in pretty good shape
[image: Team
Poison Fists]
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But if you look closely, you notice that the titanium yellow arm
got so bent that it couldn't rotate anymore [image:
Team
Poison Fists]
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UPGRADES
[AUG 01-PRESENT]
New
flames & double the fenders
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The
only place in a 2-bedroom apartment to store a 220lb robot...
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New
cart for easier maintenance, transport, & safety, thanks to
pit crew boys Nick & Dave
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New
chain guards & sprocket setup--more speed reduction for this
build
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Pods
are skinnier & can be adjusted to a wide or narrow stance
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Laptop
computer with Pro/Engineer software from PTC!
Preview of version 2 of the bot
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STEVE
JACOB PHOTO SHOOT [MAY 01]
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Far
more menacing in Steve's shots than in mine--these are just the
quickie polaroids to check the lighting, not the real prints
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Without
a light in the middle, the lexan's nearly invisible--really highlights
the wheel fender contours
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Steve
also did the shots for the 4/2001 Independent
article. Contact me
if you are interested in purchasing prints or having Steve take
pictures of your work
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TBS
SUPERSTATION
MOVIES
FOR GUYS WHO LIKE MOVIES JUDGE DREDD HOSTING [APR 01]
Towering
Inferno after a feisty, messy demonstration outside of Paradise
Machining. Owner Warren Johnson didn't mind adding a
bunch of holes to his driveway
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It
took a couple of crew guys almost all day to clean the bot &
the driveway, and I'm still finding little bits of relish
here & there...
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Unfortunately,
I got the best hit on the mayonnaise & not something less gross--ruined
my whole outfit on that one shot--we were directly in the line of
fire
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I was
disappointed to find that the pinata had no candy in it and that
stuffed animals just squish & bounce back when whacked with
hammers
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DESIGN
NEWS
MAGAZINE COVER PHOTO SHOOT [MAR
01]

INITIAL
BUILD [FEB 01]
Towering
Inferno during his first assembly--wow, he's big!
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Takes
up most of a project table in the UCSB Mechanical Engineering
machine shop
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I
painted the hammers different colors so I could distinguish right
from left while driving
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The
wheel sections will be reinforced by sheet metal cone sections
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Seen
from end on, it's a triangle in a circle, plus a couple of enormous
hammers
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Hammerheads
are easily removed for swapping if necessary
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The
business end of the former bricklayer hammer
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Closeup
of drive sprocket, shoulder assembly, and clamp to attach arm
to shoulder
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Shoulder
with clamp removed, showing 10 boltholes--that oughtta keep
the arm in place
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The
triangle really doesn't extend beyond the circle--this is just
a funny perspective
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Wheel
sections with serious lightening holes are bolted to polycarbonate
rectangular panels
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A
dozen prism-shaped clamps hold the big prism panels together
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Both
prism pods rotate independently on the main tube shaft
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Initial
polyurethane tread bonded and screwed on, courtesy of sponsor
Urethane Rubber Systems
in Santa Ana--nice guys!
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All
electronics (battery, radio, speed control, motor) are shock-mounted
to outer triangle panels and spaced around to (mostly) balance
the wheel
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The
triangle panels of the prisms rotate on hefty bearings that we
machined down to save a few pounds--I wish the flanges were red
instead of blue...
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PARTS
[EARLY 01]
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Red
anodization gives it that patented Inferno look!
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One
of Bell-Everman's CNC mills, caked with aluminum chips from making
Towering Inferno's wheel sections
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Near-finished
part--next step is removing, doing rough bandsaw cut of arc, then
re-milling arc completely
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These
are already bandsawed & awaiting the final finishing pass
on the arc portion
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Next
steps: anodizing, then bonding on a polyurethane coating for
traction
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The
whacking hammers: bricklayer hammerheads on chromoly rectangular
tubing arms, reinforced with tool steel inserts
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Lots
of grinding & power sanding turned the blunt claw nice &
pointy
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The
panels that will bolt onto the "shoulders" to clamp
the arms to the bot. They'll look even nicer once they're anodized
red...
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Countersunk
on both sides for weight savings & for reversability, should
they get tweaked
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I
put the large sprockets on a diet
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Some
aluminum braces to provide an internal truss-style structure to
the prism sections (I never used these--the structure was already
hella strong & stiff as it was)
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Planned
it out on PAD (paper-aided design) with some scissors &
tape before cutting the aluminum angles
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Closeup
of how I snipped the aluminum & then bent & had it welded
to get the right shape
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Initial
test piece of the sheet metal cone section to attach to the wheels,
courtesy of new sponsor Begneaud
Manufacturing. The final ones will have more bends &
be smoother. Alan Breaux did the drafting after I described
the parts I wanted
[photo: Russ Green]
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The
real sheet metal cone pieces, fresh off of the laser cutter at
Begneaud, ready for bending and then welding short tube segments
on for bolt mounts. Brent "Bubba" Reinhardt did
the laser posting & cutting
[photo: Russ Green]
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One
of the final pieces right after bending, ready for tubes to be
welded on by Don Monac
[photo: Russ Green]
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Depending
on the chosen configuration (and weight constraints), Towering
Inferno will run with 6 or 12 cone segments. Thanks to Don
Begneaud for letting Russ Greene mastermind this project
at his shop!
[photo: Russ Green]
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PRO/ENGINEER
DRAWINGS [EARLY 01]
Working
on Towering Inferno in Pro/Engineer Computer Aided Design software
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Hey,
I learned how to do some basic rendering in Pro/Engineer!
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All
of the major components except the hammerheads are now added
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Comparison
of wheel segment locations: centered or near ends of bot, with different
sheet metal cone configurations
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The
final bot will of course have cone sheet metal sections on all parts
of the wheels
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2 pods:
hidden lines view
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2 pods:
dimmed hidden lines view
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2 pods:
hidden lines removed from view
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2 pods:
simple rendering
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Another
view of the pair of pods
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Note
the sheet metal cone sections added to 1 wheel section
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Hidden
line view of assembly of 1 pod
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Shaded
view of pod
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Bracket
part--12 of these hold the pods' panels together
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Early
version of the wheel section--3 of these turn each of the structurally
strong triangular prisms into circles
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Motor
mount concept that I never ended up needing
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