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user:zimmer62:autodvdloaderrobot:start [2013/09/30 13:47]
zimmer62
user:zimmer62:autodvdloaderrobot:start [2017/04/05 00:38]
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-This started out as an iRippit X-50 50 Disc CD/DVD Duplicator. ​ I saw it on a deal site and figured I could hack it to get it to read CD's / DVD's instead of burn them.  I'm not interested in copying disc's I just want an easy way to auto load them for ripping to my NAS. 
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-At one point, I had a majority of my DVD's ripped to my Windows Home Server. ​ The hard drives in that ended up failing without much warning, and I lost a good chunk of that collection. ​ I still own the optical disc's and would like to re-rip them, but in an automatic way. 
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-Drivers for newer operating systems are not there, and the software this works with is really only designed to copy a bunch of the same disc over and over.  A band interesting in burning their own discs might like this. 
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-The first step was to remove all of the housing and electronics,​ and identify what things I can use and what each part is. 
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-I documented what I could figure out from each connecting wire: 
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-  * Bad Disk Full (Orange, Yellow, Green, Blue) [[https://​www.sparkfun.com/​datasheets/​Sensors/​QRB1114.pdf|QRB1114]] 
-  * Bin Full (Red, Orange, Yellow, Green) [[https://​www.sparkfun.com/​datasheets/​Sensors/​QRB1114.pdf|QRB1114]] 
-  * Drive Door (Blue, Black, Purple, Yellow) [[https://​www.sparkfun.com/​datasheets/​Sensors/​QRB1114.pdf|QRB1114]] 
-  * Home Sensor (Red, Orange, Yellow) [[http://​www.sharpsma.com/​webfm_send/​637|Sharp GP1A75E3J00F]] (Yellow = E) 
-  * Disk Present (Red, Black, Blue) [[http://​www.sharpsma.com/​webfm_send/​637|Sharp GP1A75E3J00F]] (Blue = E) 
-  * Safety Int (Black, Read, Green) [[http://​www.sharpsma.com/​webfm_send/​637|Sharp GP1A75E3J00F]] (Green = E) 
-  * JP13 Greyish White Wires go to the Disc Release Solenoid. 
-  * Stepper Motor [[http://​jnker.com/​equipment/​step_pdf/​Seriya-GD42STH_1.8.pdf|FL42STH47-1206AC]] 
-     * 1.8 degrees 1.2A 
-  * Power Supply 12V @ 2.5A 
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-This should be enough information to get going. 
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-I don't need the safety interrupt, so that leaves me with 5 sensors, 1 stepper and 1 solenoid that I need to interface with. 
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-That still left me with trying to identify that Sharp optical sensor since there are 2 of them I will need. 
-I can see that the blue wire here is the Emitter, I'd really like to find the specs on this to make sure I drive it correctly. 
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-My search let me [[http://​memakingthings.blogspot.com/​2012/​12/​optical-interrupters.html|here]],​ not identical, but very close. ​ The 361 chip on my board is a current limiting resistor. 
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-A little experimenting with the lid sensor that I'm not going to need should help me figure out how to interface with this. 
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-Ohhh I found it [[http://​www.digikey.com/​product-detail/​en/​GP1A75E3J00F/​425-2565-ND/​857214|@ DigiKey 425-2565-ND]] 
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-[[http://​www.sharpsma.com/​webfm_send/​637|Sharp GP1A75E3J00F]] I'm still not sure from this how to identify the other two leads. 
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-I had a heck of a time getting the .net gadgeteer board and the L6470 stepper controller to talk to any stepper motor. 
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-I was finally able to get this turning a stepper motor over the weekend. ​ It seems it's very sensitive to it's register settings. 
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-I had to use some software and a stepper motor datasheet to get some values to feed into their software. 
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-According to this: 
-https://​www.ghielectronics.com/​community/​forum/​topic?​id=8081&​page=2 
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-Those values only get you close and you need to use an o-scope to tune it further. 
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-TODO: 
-  * Find datasheet for stepper motor in machine 
-  * Hookup and test stepper motor to L6470 module 
-  * Interface both types of optical sensors to gadgeteer board 
-  * Write some rough code to exercise the machine using the optical sensors to prevent damage 
-    * A loop that grabs CD's from source stack, drops them every other into the bins until bins are full. 
-  * Write code to interface machine to PC to take simple commands and report back 
-  * Write code on PC side to control machine and rip discs 
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