This is my first LMR construction, it is also my first "pro" linefollower and it was prepared for SumoChallenge2009 in Poland. My girlfriend called him "Nippon" - don't ask me why :)
Engines' nominal voltage is 3V - I switched them directly to 6V, used PWM=254 but they were still too slow... So changing engines is my priority at the next update.
I made PCBs by myself - standard technique using iron, "smooth" paper and B327. I used special paint for soldermask, dedicated for glass (known in Poland as EnSold).
Top side:
Bottom side:
An idea for chasis was born, when I was cleaning my room - it's not a toy-car or other space ship; I used... an old CD-rack :)
LCD is mounted only for sensors' calibration - Nippon is too heavy with it.
Here are some photos - enjoy :)
Old, boring CD-rack:
Whoah! All parts fit perfectly!
Sensors' PCB and batteries mounted:
Mainboard and LCD mounted:
Radiator for L298 added (engines use about 0,8A each)
I love it Looks awesome - very clean and aesthetic project - from the PCB to chassis, everything looks great. Did you have any luck with the competition?
Take a look at the motors at Take a look at the motors at www.mobot.pl - they are relatively inexpensive and quite speedy with proper gear ratio (no, I am not their representative ;P)
Coolest CD rack… That is one mean looking CD rack-bot conversion! I have a CD rack sort of like yours, but it is simply collecting dust on my file cabinet. Never occurred to me I should maybe make a robot out of it! Very inspiring - remidns me that one should look around at ones discards and idle devices as robot materials sources. Nice work on the PC board too. Anyway, thanks for posting Niippon for us all to see. Nippon ROCKS!
