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Bearings have many benefits and can bring your project up a notch in efficiency, longevity and precision.  Below are a few helpful tech tips to remember when working with ball bearings on your next project




2
Mechanics and Construction / newbie to robotics
« Last post by sundarms74 on May 21, 2017, 03:53:29 AM »
i have a farm.100 sqm.i want to develop a robot for spraying pesticides and nutrients,watering plants,harvesting fruits,anybody can guide me where to start.
3
Misc / What are the applications of robots?
« Last post by Deepakcandyman on May 18, 2017, 03:26:04 AM »
What are the applications of robots?
4
Mechanics and Construction / Dagu Wild Thumper 6wd Project
« Last post by qqwea1223 on May 17, 2017, 06:11:42 PM »
Hello everybody,

I'm the new member in this forum. I join here to look for a help in my project. My professor gave me a project that using flysky transmitter to control Dagu Wild Thumper 6WD (specific detail here www.pololu.com/product/1560). Honestly, I have no experience in this field and do not know what I have to do. I already have a flysky transmitter, a Dagu wild thumper 6WD, a arduino uno, a raspberry Pi. I would be glad if you can mentor me step by step in this project. If you don't have much time, please at least give me a list what I have to do and what addition devices I have to have?

I'm just a newbie here. Therefore, If my post has any mistake, please let me know.

Thank you so much. I'm looking forward to hearing from you.
5
Misc / zero moment point
« Last post by ketanco on May 16, 2017, 10:02:51 AM »
Hello,
Can someone explain what is zero moment point?
I checked google but all i read confuses me
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Hey Macdad, exactly the same situation here with the MB7092; silicone works in air, but no dice underwater.  I know it has been a while, but have you overcome this challenge?  How did you do it?  I think there is a lot of people interested in underwater ranging who would benefit.

[update 5/16/17]

MB7092 contains active filtering and will show last position if it cannot get 3 consecutive readings within 1 cm.  I think it may be tossing out the requested readings.  Ordered an MB7060 compact and will let everyone know how that works.

[update 5/18/17]
MB7067 (compact version with no horn) works with my test water column. 
7
Electronics / T-Shirt Robot Communication Question
« Last post by Colbyk1 on May 10, 2017, 04:35:35 PM »
Hey Everyone,
My name is Colby and my FRC team is working on building aT-Shirt cannon (We understand that PVC isn't rated for pressure) and we want to control it with something like an RC car/ airplane remote as the controller because we want to have a long range, So I guess my question is does anyone know of a way to have the signals from an RC remote be interpreted by a computer? We would like to do this because this would allow us to still fully program the robot, I know I could possible look for a motor controller that outputs PWM and I'm not totally aginst that but we would still like to be able to program our robot!
I don't know if this is the place to post this but I don't really have any other ideas!!
If anyone can help at all it would mean the world to me and my FRC team 353!!
Thanks in advance,
Colby Kusinitz
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Electronics / Bomb Disposal Robot Secrets
« Last post by EMCosta on May 07, 2017, 09:07:32 PM »
Hello everyone.
I was watching an episode of Conan where he visits the explosion ordnance disposal division. When Conan asks to a soldier what is the barrel on the bomb disposal robot for the man answers purposely in a vague way, telling nothing about it's usage. So i decided to ask you guys.

My guesses are that it's used for some kind of radiation measurement like a geiger counter, a EMP gun to disable electronic bombs or even a simple air gun to get rid of dust.
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Electronics / hall effect sensors
« Last post by ketanco on May 05, 2017, 03:32:07 AM »
what is the difference between a hall effect sensor and a magnetometer?
how are each used in hobby robotics, i mean what are the example uses?
10
For Sale / Selling Apple IPhone 7 ,IPhone 7 plus 6S and Samsung Galaxy S8 Plus
« Last post by Jonas222 on May 04, 2017, 04:18:42 AM »
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