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Master-Slave Control System

Posted: January 10th, 2016, 11:18 pm
by Chris_L
Where would be a good place to look for resources as to how to start building one of these?

Re: Master-Slave Control System

Posted: January 11th, 2016, 4:23 am
by windu34
Chris_L wrote:Where would be a good place to look for resources as to how to start building one of these?
YouTube and google

Re: Master-Slave Control System

Posted: January 11th, 2016, 5:42 am
by samlan16
windu34 wrote:
Chris_L wrote:Where would be a good place to look for resources as to how to start building one of these?
YouTube and google
Best answer ever.

Re: Master-Slave Control System

Posted: January 11th, 2016, 6:06 am
by windu34
samlan16 wrote:
windu34 wrote:
Chris_L wrote:Where would be a good place to look for resources as to how to start building one of these?
YouTube and google
Best answer ever.
I honestly believe the best way to learn builds is to look at other people's builds and examples on images gallery and YouTube

Re: Master-Slave Control System

Posted: February 23rd, 2016, 8:13 am
by watermydoing14
I feel like I'm probably missing something really simple here... but how exactly would you put potentiometers into the joints of a master control arm? Our robot arm has 6 joints, so 6 potentiometers, and I'm hoping it will be easier/faster to put them in a master arm rather than just turning them individually by hand

Re: Master-Slave Control System

Posted: February 23rd, 2016, 9:47 am
by windu34
watermydoing14 wrote:I feel like I'm probably missing something really simple here... but how exactly would you put potentiometers into the joints of a master control arm? Our robot arm has 6 joints, so 6 potentiometers, and I'm hoping it will be easier/faster to put them in a master arm rather than just turning them individually by hand
Look for examples online and in the image gallery.
If you go on youtube and search "West Ottawa Science Olmypiad Robot Arm", you will see a great example of the implementation of this device

Re: Master-Slave Control System

Posted: February 23rd, 2016, 10:34 am
by laidlawe18
windu34 wrote:
watermydoing14 wrote:I feel like I'm probably missing something really simple here... but how exactly would you put potentiometers into the joints of a master control arm? Our robot arm has 6 joints, so 6 potentiometers, and I'm hoping it will be easier/faster to put them in a master arm rather than just turning them individually by hand
Look for examples online and in the image gallery.
If you go on youtube and search "West Ottawa Science Olmypiad Robot Arm", you will see a great example of the implementation of this device
The instructable for the West Ottawa arm is also quite good.

Re: Master-Slave Control System

Posted: February 23rd, 2016, 1:49 pm
by Bazinga+
watermydoing14 wrote:I feel like I'm probably missing something really simple here... but how exactly would you put potentiometers into the joints of a master control arm? Our robot arm has 6 joints, so 6 potentiometers, and I'm hoping it will be easier/faster to put them in a master arm rather than just turning them individually by hand
Try modding the 'ARM UNO' or 'Me Arm' if you don't have the resources to make a master arm. Its relatively cheap and perfect for the purpose. Just don't put potentiometers on it, but rather modify the servos by taking our the motor and reconnecting the signal wire so it gives you the potentiometer readout.

Re: Master-Slave Control System

Posted: February 23rd, 2016, 8:10 pm
by Chris_L
What were some examples of potentiometers people bought? or did most people cannibalize servos for their potentiometers?

Re: Master-Slave Control System

Posted: February 23rd, 2016, 8:49 pm
by watermydoing14
Chris_L wrote:What were some examples of potentiometers people bought? or did most people cannibalize servos for their potentiometers?

It seems to me that it would be easier and cheaper to just buy potentiometers
Ours look like this:
[img]https://images.campyent.com/sites/default/files/uc_products/r-v1ma-m_0.png[/img]
And they came with a little cap that turns the knob more easily and has a little notch on it that shows you how far you've rotated the knob.
They're about 75 cents each, so it shouldn't be out of any teams budget to buy