Prebuilt bot

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  • 1. Mtir Conac System
    Hello! I have heard about a positioning system with a rotating device called CONAC from MTIR. Their website seems to be down though and I have only found the google cache site. Does anyone have further information about this system & does anyone know where to get such a system? Many thanks in advance Ingo
  • 2. Robotix
    I am in the market for Robotix kits/spares/loose parts. I use Robotix in educational presentations, and I particularly want to find the handheld computer which was discontinued in 1998. I am also looking for working motors [both types], red swivels etc. Please contact if you have any you wish to dispose of. Reasonable prices only please.
  • 3. IR Module signal detect
    My robot is using a radio shack 38khz IR module and IR leds driven by a 555 timer circuit. It's probably not actually 40khz, but it's close enough that I can see the signal from the module when pointed at a nearby object. The problem I'm having is that the pulses comming from the the detector are getting missed as I poll port E. Is there some way I can use an interrupt to detect a change on the pin instead of polling? Should I try to correct the transmit frequency instead? Right now, I see a signal from the detector when my robot comes within 2 feet of a wall, but the signal is pulsed, and the pulses are falling in between my polls of the port value. Tom

Prebuilt bot

Postby fr335tyl3roptusnet dot au dot » Fri, 14 Nov 2003 19:57:18 GMT

I am looking for a robot similar to the garcia from acroname which is
prebuilt allowing me to focus upon the programming side of robotics more so
than the hardware construction problems. Anyone have any references besides
the garcia?

TIA

Jeff



Re: Prebuilt bot

Postby Dennis Clark » Sat, 15 Nov 2003 08:55:15 GMT


: I am looking for a robot similar to the garcia from acroname which is
: prebuilt allowing me to focus upon the programming side of robotics more so
: than the hardware construction problems. Anyone have any references besides
: the garcia?

The Garcia is a pretty "top shelf" robot, I've seen it in operation and it
is pretty darn cool - Wireless network, yaddayadda...  Provided that money
is of little consideration, you can also check out 
 http://www.**--****.com/  and the trilobyte robot and 
 http://www.**--****.com/  and the Khepera and Koala, or heck, the little 
Hemmison which is very cool, very small and very expandable.

Since you were looking at Garcia, I'm assuming that you are interested in 
bots in the $1000+ range.  The Hemmison isn't that much though.  The 
Arrick robots are in the USA, the K-Team robots are Swiss.

There are no doubt others, these are just the ones that I know about.  You
can Google for "educational robot" to find more I'll bet.

DLC
-- 
============================================================================
* Dennis Clark          XXXX@XXXXX.COM                 www.techtoystoday.com   * 
* "Programming and Customizing the OOPic Microcontroller" Mcgraw-Hill 2003 *    
============================================================================

Re: Prebuilt bot

Postby D. Jay Newman » Sat, 15 Nov 2003 10:21:43 GMT

fr335tyl3r


You might consider one of the robot bases from Budget Robotics
( http://www.**--****.com/ )

I have one of their Scooter Bots and it worked like a charm. It is
*extremely* easy to build.

Polydroids ( http://www.**--****.com/ ) also has bases for sale.

You can get one of the many controller boards available. I like
the JStik from Systronix ( http://www.**--****.com/ ) because I can
program it directly in Java. I did have to create an I/O board
for it, but as soon as it's tested, I will post the schematic
and board files (Eagle). Olimex shipped it earlier this week,
so I probabably won't get it for another several days.

Re: Prebuilt bot

Postby Kaido Kert » Sun, 16 Nov 2003 00:29:13 GMT





so
besides

 http://www.**--****.com/  makes quite a variety of cool prebuilt kits too.
For a little extra, send them your blueprints and they manufacture the
parts/frame for you. I bought their Carpet Rover and am quite happy with
that.  But, i initially made a poor choice on controller type. Although BS2
is cool and easy, its very limiting. For total freedom PC platform in form
of Mini-ITX would be the best, perhaps assisted by couple of peripheral PICs
or AVRs.

-kert



Re: Prebuilt bot

Postby Gordon McComb » Sun, 16 Nov 2003 05:11:03 GMT

For pre-built I second the K-Team Hemmison. I have been looking at one
for the past two months, and it's very well put together. The body is
made of multiple levels of thick foam.

Another pre-built worthy of attention is the X-Bot from Netmedia/BasicX.
Cost is $250, and comes with a BX-24 chip.

-- Gordon
Author: Constructing Robot Bases (Forthcoming)
Robot Builder's Sourcebook, Robot Builder's Bonanza






Re: Prebuilt bot

Postby Alex Gibson » Mon, 17 Nov 2003 11:16:11 GMT






prebuilt. I thought prebuilt means assembled ?

mini itx. whats the power use like ?
especially running on batteries ?

Th budgetrobotics rigel kit is also really really easy to get going.
Got the base completely built in under an hour.

For controllers 

avr mavaric or mavaric 2 or m128 from www.bdmicro.com
are really nice. easy to use. Great off batteries.


For when you need lots of pwm
have a look at the servopod from www.newmicros.com
 http://www.**--****.com/ 


That centipede (remote controlled bot) in october  nuts and volts mag
uses a minipod in each segment.minipod  http://www.**--****.com/ 
Some movies of it here.  http://www.**--****.com/ 

Just subscribed to
their new Servo magazine which was their robotics supplements.
 http://www.**--****.com/ 

Alex

Re: Prebuilt bot

Postby D. Jay Newman » Mon, 17 Nov 2003 13:41:54 GMT






True, but I find a kit that is trivial to build pretty close. And
generally *much* cheaper.


Generally the Mini-ITX boards are low-powered. However, I'm trying to
wait for the next generation (the nano-itx boards) to come out. They
will use less power and and be generally smaller.


Yes. I find almost any of the Budget Robotics bases nice.

However, I just ordered the treaded base from PolyDroids because the
base is biggen than any of Gorden's offerings. And for experimental
robots I prefer a base which is bigger than necessary.

I like the Systronix products for robotic controllers. The JStik running
all out (100 MHz) uses about 1/2 A at 3.3V. And they run Java natively.

Re: Prebuilt bot

Postby Gordon McComb » Mon, 17 Nov 2003 14:13:27 GMT



That's nice to hear. 


The Polydroid tank indeed looks nice.

As an FYI, a "secret" new kit that I am readying is Carina*, a larger
treaded base that measures 11.5" long, 7" wide, and 6.75" high. It's an
"invertible" tank base, which means if it comes up to a wall, it will
roll up it, inverts, and travels back the other way.  It's powered by
two Hitec HS-700 servos (modified) so there's no need for an H-bridge.
The endless {*filter*} tracks are 1/8" thick and 1-1/4" wide.

I am still running the base through its paces, but I can share an image
of the prototype:

 http://www.**--****.com/ 

(*It's named Carina, after the star, which itself means the keel of the
ship Argo. The keel is the essential structure of the ship that keep
everything else together, and is generally the first thing made when
building a new vessel.)

-- Gordon
Author: Constructing Robot Bases (Forthcoming)
Robot Builder's Sourcebook, Robot Builder's Bonanza

Re: Prebuilt bot

Postby Gordon McComb » Mon, 17 Nov 2003 14:25:24 GMT



Forgot to mention these are the big quarter scale servos.

-- Gordon
Author: Constructing Robot Bases (Forthcoming)
Robot Builder's Sourcebook, Robot Builder's Bonanza

Re: Prebuilt bot

Postby Brian Dean » Mon, 17 Nov 2003 15:20:35 GMT




Looks great!

And based on my previous experience with your kits, I know it will be
superb.

Cheers,
-Brian
-- 
Brian Dean,  XXXX@XXXXX.COM 
BDMICRO - Maker of the MAVRIC ATmega128 Dev Board
 http://www.**--****.com/ 

Re: Prebuilt bot

Postby Randy M. Dumse » Mon, 17 Nov 2003 22:51:22 GMT

"Alex Gibson" <alxx/*nospam*/@@/*nospam*/ihug./*nospam*/com./remove/au>



We will have a board supporting one early next year.

-- 
Randy M. Dumse
www.newmicros.com
Caution: Objects in mirror are more confused than they appear.



Re: Prebuilt bot

Postby D. Jay Newman » Wed, 19 Nov 2003 08:43:13 GMT




Too bad I hadn't heard about it last week. I may just take a look at
it when you get it done.

Incidentally, what are you using for treads, if you don't mind me
asking?


And this too I am eagerly awaiting.


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