Comments on: New in the Maker Shed: Robotic arm kit http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/ DIY projects, how-tos, and inspiration from geeks, makers, and hackers Thu, 23 May 2013 19:11:52 +0000 hourly 1 http://wordpress.com/ By: Jimi Rienks http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285566 Sat, 12 Mar 2011 18:37:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285566 It is not Arduino but I hacked this robot View video here:

]]> By: Chek http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285559 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285559 I figure they’re probably normal brushed DC motors, but the plastic housing seems really handy for any setup. Switch it out with some stepper motors, put some sensor to determine grip pressure, maybe mount it on some rails… You could have a very cool, very functional arm pretty easily.

I think I need to raid the piggy bank for one of these.

]]> By: Marc de Vinck http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285560 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285560 I was thinking of using the motors, and just interfacing the remote.

]]> By: Nate http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285561 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285561 I thought the same. 5 analog controls (or so they appear), and 6 PWM outputs on the Ardy…sounds like it might be a quick and easy hack.

]]> By: Jan-Jaap Schuurman http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285562 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285562 This robotic arm also has an USB interface that is just released. I have one but there is no feedback to to the computer on wich you can program and move the robotic arm. One problem of the software is that it doesn’t knows where it is, so if you make it turn the opposite direction of wich you where moving, it loses some of the position because of the gears. So an other, perhaps an arduino interface would be a great idea in stead of the original computer program and USB interface.

]]> By: LHimesJr http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285563 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285563 I have built a custom controller based on the PIC16F887. The controller drives the five axises and light of the OWI 535. As well as outputs to control four drive motors such as the Tamiya 70167. There is a serial port on the custom controller for sensor or other control inputs. The INA126PA Instrumentation amplifier is being used to amplify the voltage drop across a 0.03 ohm current sense resistor. There is one current sense resistor in series with each motor. That allows the commutator / brush interruptions to be monitored as well as the current draw of the motor to be monitored. The current interruptions can be counted similarly to encoder pulses from other DC / AC motors equipped with them. That same voltage drop indicates the motor normal or over current draw. Allowing the microcontroller to stop the axis which is stalled for some reason. I have just received the circuit board (which I drafted) and the components for the current monitoring. It appears that one pulse from the commutator will equal 0.015 degrees of movement noticed at the robot axis. Due to the gear box and its ratio.

]]> By: Zach http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285564 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285564 One neat hack would be to replace the command token (control box) with a waldo. Though with no positional feedback, this could be a challenge. If you replace the standard DC motors with steppers, though, and arrange some contacts (or maybe bend sensors) to signal certain positions, I could see it being very workable.

]]> By: arnoldlawrence http://blog.makezine.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285565 Wed, 30 Nov -0001 00:00:00 +0000 http://makezineblog.wordpress.com/2009/11/17/new-in-the-maker-shed-robotic-arm-k/#comment-285565 Who is going to be the first to hack this? [URL="http://www.cypresss.com"]arnold[/URL]

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