now uses closed loop servo digital
sync lock servo technology. There is
a lower grade “CNC converted”
version at about half the price of the
advanced CNC version.)
Chris Baron of Robot Power
went into more detail:
hard to find in small bottles
and/or locally.
Servo mill.
I’ve had one of these for years.
Got mine from Super Tech using
their conversion and controller box. I
cut mostly Al but I cut a saw blade
to make a replacement firing pin for
an old . 22 once. Tried to cut Ti once
but it was a disaster. Couldn’t get
the heavy feed needed to cut. I was
probably doing it wrong but it is
much more difficult to cut than Al,
plastic, or steel where you just set
the feed speed.
Works well overall as long as
you remember it is a light duty
machine for small parts. I find the
Y axis travel to be frustratingly small.
Z and X are fine (I have the 18”
table).
They are a pain to keep lubed. I
use an old-time oil can with a
squeeze handle and a flex tube to
reach the ways and screws. I use
ATF fluid for the lube. Way oil is way
nice toolmaker’s 3” vise from Enco
that is more solid and easier to
clamp stuff with.
Like all product reviews, your
mileage may vary. I look forward to
further input from users of this
product. SV
MAN UFACTUR IN G:
RioBotz Comb t Tutorial
Summarized – Tooth Design
● Original Text by Professor Marco Antonio Meggiolaro; Summarized by Kevin M. Berry
Editors Note: Professor Marco
Antonio Meggiolaro, of the
Pontifical Catholic University of Rio
de Janeiro, Brazil, has translated his
popular book, the RioBotz Combot
Tutorial, into English. As in previous
editions of the Combat Zone, portions
of the tutorial are summarized. In
this article, we present a much
simplified version of the “Tooth
Design” section of Chapter 6 — a
major treatise on combot weapons.
Marco’s book is available free for
download at www.riobotz.com.
br/en/ tutorial.html. For a hard
copy purchase (at no profit to
Marco) go to Amazon. All
information here is provided
courtesy of Professor Meggiolaro
and RioBotz.
Tooth Design
One important issue when
designing spinning weapons such as
disks, bars, drums, and shells is
regarding the number of teeth and
their height. Too many teeth on a
spinning disk, for instance, will make
the spinner chew out the opponent
instead of grabbing it to deliver a full
blow. Everyone who’s used a circular
saw knows that fewer teeth means
a higher chance of the saw binding
to the piece being cut — which is
exactly what we want in combat.
SERVO 11.2010 29
