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This project has evolved some , the basic rundown is I'm modding two Omnibots , one a regular the other a larger 2000 model. I will have two ezb kits , rad base idea was thrown out because of so much noise but could go back on the table if the omnibot drivetrain is too weak to pull it.
By jstarne1
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Ok phase 2 planning , a second smaller , simple robot will vacuum kitchen and living room..@ww321 lol I promise I didn't plan it that way , but I wanted my build to be educational and informative , lots of "how toos" and illustrations , and before after pictures are priceless in value to someone who is learning or.trying to.repeat any aspect of my project.
Here is a Isometric sketch I.did.on my.last break.at work.... Forgive its simple look lol , also a topview of possible sensor.locations.
A side note I descided for airflow reasons I perferate 4 spots on the omni 2000 base , two areas for intake , two exhuast as I believe one 80mm fan will realistically not be enough...
what did you do about the cliff detection ,did you use my idea on using IR SENSOR instead of SONAR
I don't have either.mounted at.the moment , I've had really mixed thoughts , dj thought a sonic sensor would be great so honestly I'm a bit confused , I bought 4 sharp ir sensors to use instead but I have not mounted them. For anyone interested I.have a roll of rubber sound deadening mat and fans to cool ezb and motor controllers I'm.hooking my friends up with.
if you read the specs on sonars it wont work well on material like carpets,cloth,sofa's,foam
also look at NEATO XV11 VACUUM robot they use IR and does the ROOMBA on the bottom for edge detection
another sensor i have since you are making a vacuum robot is a dirt sensor,do you need it
Josh, I absolutely love the omnivacubot design! He looks soooo cool! I actually have a roomba board if you want it. I know that DJ has controls for the roomba, maybe you could combine the two to control your vacubot? I may even have a few of the sensors off the roomba, I'll check and see. If you want it you got it. Just let me know your shipping address.
bret i not sure it will work,because DJ hasent add on the roomba to read the sensors,only control the the roomba,but it might be able to use it to control the motors
JOSH here is more info on using sonars facing carpet The front-facing sonar sensor detects obstacles straight ahead. Since sonar sensors tend to have a wider beam and range than infrared sensors, it makes a good general purpose obstacle detector. However, there is one "gotcha" about sonar sensors that had me puzzled for days before I figured it out. If you mount such a sensor too close to the ground, it will detect small irregularities in the floor surface that you wouldn't consider obstacles. For example, my dining room carpet is barely an inch above the tile kitchen floor. Nonetheless, if the front facing sonar sensor is mounted less than about 4" off the floor, its beam bounces back off this rise and the poor robot can't get out of the kitchen. IR sensors can be mounted much closer to the floor without suffering from the same problem.
look on the internet there is more info on sonars not able to detect anything cloth,sofa's,carpet,foam the sound absorbs and blocks it,same with speakers using foam or acoustic material