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Mechanics and Construction / Re: 120w e scooter motor powered robot
« Last post by Albert.Adderley on Yesterday at 09:00:24 AM »
I know the motors will be dropped from 3200rpm to around 320rpm using a timing belt and pulleys
Mechanics and Construction / 120w e scooter motor powered robot
« Last post by Albert.Adderley on Yesterday at 08:51:04 AM »
Hi I am building a 4 wheel drive tank steer robot with 120w e scooter motors but am stuck on a few design questions.
If I use 2 motors each driving 2 wheels what is the max wheel size I can use.
Also if I use 4 motors what size wheel can I use.
And has this been done before
Electronics / OV7670 on Arduino
« Last post by Taerzik on November 15, 2018, 10:02:35 PM »
Anyone have any experience on using the OV7670?
I have one hooked up to an Arduino and although I've tried using several sets of instructions, nothing seems to work.
I'd go into more detail but right now I'm too tired to think that hard.
I suspect that something in my circuit isn't hooked up quite right, then again, it could be something else.
One thing I've noticed is that none of the instructions I looked at seemed to address the communication speed, so I'm not sure what to set that at.
Any words of wisdom?
Mechanics and Construction / Peano Hassel Actuators
« Last post by Taerzik on November 15, 2018, 09:36:41 PM »
A while back Peano/Hassel soft actuators got a little attention but I haven't heard anythign since then.
I'm VERY insterested in making a few but haven't taken the time to place that poker in my fire yet.
Has anyone else taken an interest in the actuators?

So far HASSEL actuators are the closest things I've seen to artificial muscles.
I don't really care about the high speed of actuation so much as the fact that they are soft, cheap, and it seems to be rather simple to do position sensing with them.

If you haven't heard about these before, check them out.
Misc / Looking for cheap servo source suggestions
« Last post by Taerzik on November 15, 2018, 09:29:51 PM »
Any recommendations on where to find the cheapest servos? Especially very small servos like 9g 'size'.
I don't mind these being low quality servos - I already buy cheap analogs from china via ebay or amazon but I'm interested in figuring out where to find them even cheaper. I'm imagining that the answer might be something like a bulk order of some kind but I don't know where to look or ask for such a thing.
The Chinese wholesaler sites don't seem to offer substantially better prices than ebay dealers.
Misc / Cyber Monday - Save BIG at ServoCity!
« Last post by ServoCity on November 15, 2018, 01:30:43 PM »
This Cyber Monday the deals are endless!

  • We're BLOWING OUT Futaba servos & Accesories
  • 25% OFF ALL Hitec Servos
  • 35% OFF Actobotics
  • FREE Standard Shipping orders $100+
  • Up to 65% OFF countless other ServoCity Products
Misc / NEW Hitec Servo! HS-488HB
« Last post by ServoCity on November 08, 2018, 09:46:00 AM »
We're excited about the NEW HS-488 servo! It's based around the ever popular HS-485HB, but with some noteworthy updates!

Electronics / Autonomous RC Car
« Last post by Erbab on October 24, 2018, 04:12:32 AM »

I am trying to build an autonomous rc car. Here is what kind of thing I intend to build;

As shown in the link, I would like to make it follow roads perfectly and understand the traffic lights. These are my first purposes.

I am taking a course on edx on vision intelligence of robotics to build a theoretical and practical background. However, I need some help of experienced people to understand steps of the process and materials I need.

I am an electronic engineering student.

Thank you very much for your help!

Mechanics and Construction / dynamic modelling of a 6 DOF wheeled robot
« Last post by Gil on October 14, 2018, 03:25:54 AM »
Hello All,

I need to build a dynamic simulator of a wheeled robot.
Where Do I start? most of the material on the internet is for 3 DOF model.
Any help in finding a reference will be mostly appreciated.


« Last post by Salman22 on October 03, 2018, 02:11:46 AM »
i'm making a quadcopter, can i get help in here ?!
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