Not All Ideas Work (For Me)

As part of the conversion of my CD’s to FLAC files (see other blog), I was thinking of getting a raspberry pi to both control a robotic arm to pick up the cd’s, drop them into a CD reader/writer and then after the raspberry PI read them, to lift the CD out and deposit in a “ripped” pile.

and so I bought an OWI 535 robotic arm.

owi535

Build Your Own Robot Arm

Lessons learned:

(a) This robot can be controlled by a raspberry pi. I used this guide

http://www.wikihow.com/Use-a-USB-Robotic-Arm-with-a-Raspberry-Pi-(Maplin)

(b) As the robot as no opto-coupler feedback, its almost impossible to repeat a sequence of operations with any accuracy as there is no “go home” method to reset the arm to a precise position.

(c) Opto feedback capability can be added but I suspect its too much for my limited electro-mechanical capabilities ๐Ÿ™‚

http://www.zen21667.zen.co.uk/

So for the moment it sits on a shelf, quietly mocking me.

If you want to have a go, you will need:

Raspberry Pi 3 Model B 1.2 GHz Quad-Core ARM Cortex-A53 Motherboard – Green

SanDisk Ultra Imaging 8 GB microSDHC Memory Card plus SD Adapter up to 48 MB/s, Class 10

Raspberry Pi Official Universal Power Supply Unit

raspberrypi38gbmicrosdraspberrypi psuraspberrypi case

WhereThingsAreBorn ๐Ÿ™‚

 

 

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