User:Pranav Rathi/Notebook/OT/2012/05/21/pH-rocker for DNA-sequencing experiments

Design and Construction

Design and construction of the rocker is easy. It is one of the easiest things I made. I have completed all the work within 5 hours.

Components

Most of the components were available in my lab. Some i bought. The slide show has all the parts with part number and company.

pH-rocker stand

• 1 X MB6 thorlabs brad board
• 2 X TR12-thorlabs posts
• 1 X PH4 post holder
• 1 X CL6-thorlabs clamp
• Some 1/4 inch screws

Motor arm

• 1 X PK22G21-Hennkwell 12V high-torque planetary gear motor
• 1 X CP0@T-thorlabs cage plate
• 1 X TR6-thorlabs post
• 1 X RA90-thorlabs post clamp
• 1 X black disk (salvaged from a radio)
• 1 X ER1-thorlabs 1 inch cage rod
• 2 plastic wire holders and 2 rubber cushions
• some 8/32 and 4/40 screws

Power supply

• Powerline variable DC-power supply from amazon.com

pH sensor

• PH37-SS Hach company pH sensor

Well plate

• 96 Well plate for DNA-sequencing