Instructables

Open Agitator- Your Personal Chemistry Lab Shaker

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Picture of Open Agitator- Your Personal Chemistry Lab Shaker
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Agitators are those shakers in labs ( chemistry/biology)  that prevent sedimentation . They can be highly useful in your 'own' personal lab as well.I made one from easily available parts and that provide considerable control of agitation in order to be used with liquids of varying viscosity and various containers.


This is a hacked out CDROM from an old computer i had lying around. 

Before i reached to this approach i made( well in 3D )  something like a 1 axis CNC for agitation which was a complete overkill.
Here are some Pics of the Sketchup model that i planned to build..

The possible uses of this project are:
1. Etching a board without getting your hands dirty and spending time fruitfully
2. Testing the solvent and solute properties
3.Cooling some hot milk/coffee
4.Dissolving some sugar in a lemonade.

Hope you like the instructable and vote for it!
So, lets get started .
Click the next step button down here to know what all is needed!
 
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Step 1: Supplies

Picture of Supplies
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You will need the following:
1. Old CD ROM with a working tray motor. (Free)
2.Perfboard/Copper Cald board (Cheap)
3.MSP430 Valueline launchpad (for the electronics) (Borrow or Buy)
4.L293D H bridge Driver (Free-Sample from TI)
5.LP2950- Low dropout voltage regulator 3.3V( Free-Sample from TI)
6.7805 (Free/Lying around)
7.0.1uF Decoupling caps 
8.10K ressistors
9.LED`s
10.100OHM resistors -Current limiting
11.Tactile Switch
12.Wood Pieces
13.Some screws
14. Wires
15.DC Jack 
16. Old Mouse

Tools Needed:
1.Saw
2.Soldering Iron
3.Screw Driver
4. Dedication to build this project! :D

Now lets start start building it up!

Step 2: Hardware-I

Picture of Hardware-I
The first thing that is required is to take apart the CD-ROM and unscrew each and every screw you see until you get only the moving tray and a small Green PCB underneath the front side of the CDROM. You can easily find a small motor there with connections on the PCB. Solder two wires from there ( 7-8 inches long) and screw the remaining part on a plank of wood. You will soon get this (ignoring the board at the back!)!

 
kapounorg1 year ago
Its works. Thanks to Indiantinker!

MY VIDEO:
http://youtu.be/zX0pGGTKSB0
kapun.org-agitator.JPG
indiantinker (author)  kapounorg1 year ago
Awesome! Great job! Glad you enjoyed making it ! :D
kaleš11 year ago
How to upload the source to MSP430G2231 vith Energia? I get 7 errors.
indiantinker (author)  kaleš11 year ago
Ok! I can understand! What errors did u get?
Please post them here. We can work them around!

As mentioned, the code will compile flawlessly in CCS! Energia compiles using msp430-gcc which might have some declaration/assignment issues..
:D
rimar20001 year ago
Clever idea!
indiantinker (author)  rimar20001 year ago
Thanks Sir!