|
[DPRG] Re: DPRGlist Digest, Vol 44, Issue 14 BristleBot again
Subject: [DPRG] Re: DPRGlist Digest, Vol 44, Issue 14 BristleBot again
From: Randy M. Dumse
rmd at newmicros.com
Date: Wed Jan 9 15:15:08 CST 2008
I was going to mention since I saw the video Jeff, I think the
combination of some vertical and some diagonal bristles is what
gave my Cross Action B BristleBot such speed.
I see yours used nearly vertical bristles only.
My childhood electric football players used two bits of clear
plastic sheet strips. Forward, it had one strip, running from
side to side (e.g. left to right of the player) set at an angle
so the top of the strip was forward placed and the bottom of the
strip was aft relative to it. The other strip in the back, also
ran horizontally across the players bottom pad, but it was set
in vertically, without a cant or direction to it. I was pretty
sure this arrangement was what made the players always go
(roughly) forward when the floor vibrated. (Man that thing was
loud! Like a 60-Hz transformer hum feed into a megaphone.)
Ascii art attempt follows:
|| \\
|| \\ player legs
|| \\
+-------------+
| player base |
+-------------+
\ |
\ | <- strips of flexible plastic sheeting
^ ^
fwd strip, aft strip
angled vertical
Anybody got ideas how we're going to put directional controls on
these bristle bots yet? So far, there are varied reports on
making catamarans turn by using only one motor, mostly not
successful. To throw a mechanical weight, or bristle direction
control seems problematic. Even micro servos seem too large, as
big as the rest of the robot. We need smaller actuators than
even that.
Randy
www.newmicros.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://list.dprg.org/pipermail/dprglist/attachments/20080109/5bd632d5/attachment.html
More information about the DPRG mailing list
|
