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no it took less than a day i kind of was busy
and im still looking for parts

I changed the robot design deciding on servose

im almost finished with it

heres some pics on what it looks like

im going to atach some ir sensors and a few others

so keep in mind it isnt finished

thats what I'm talking about!!!!!!

Looks great!!

You said you went with servos... how do you plan to hook them up... straight to the shaft?? or have a gear tran..

heres a robot that I made a while ago..
http://www.sambuchi.net/Projects/MSP430/Robot/IEEE.htm


but here is a good picture how I hooked up my servos
http://www.sambuchi.net/Projects/MSP430 ... /pic13.JPG

you can always do the gears later If you need more speed or torque.

You may find that the back wheel my change your direction when making turns or even going straight. You might want to sub out the back wheel for a slidder.. also used to slid heavy TV's or furniture around in a house. I put one on my robot if you dont know what I'm talking about...

Looks great! Save room for that power supply!!

directly to the shaft

in the pics you can kinda see if you look hard that there already conected

im using ir sensors and im thinking of using bumper sensors for what they miss

the robots great it can already turn corners and navigate around big obstacles

it navigated succefully between my cocktale table and couch

PS: the power suply is a 4 pack of AA's its now stuck to the first level

ok.. i see the servo mounts that you are using.. I used the same on my robot.. think mine were blue.

there's a lot you can try now.. line following is easy to do.. or put some shaft encoders on it and do some dead reckoning.. Keep a history of this robot and the robots to come... you will be surprised how much you will use it as a reference.

Use an L293D H-bridge IC and u can always use a simple transistor in the switch mode configuration coupled with a diode to be able to connect it to a micro-controller...

and plus i have not read the replies above so ..pardon me if im out of context

and u can get rid of a microcontroller and use a simple remote controller to control the H-Bridge ciruit ...

Ahh!!!! 18v should not have problems but if ur wheels start slippin u can always use shaft hooked rubberbands to act like pulleys worked for me

u can use regulator 7805 to drop the voltage from 18V to 5V....also from 9V TO 5 V .... the regulator ic 7805 has 3 pins>> link first pin to +18V OR +9V then link second pin to ground(-) last pin gives +5V u want