Team:Cooper Union/OpenRoller

From 2014.igem.org

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The test tube roller is an open source lab equipment design. This design was created by Karlin Yeh and Wilfrido Castillo and a version of it is in the Cooper Union. This design is made from cardboard, &#188;" acrylic, a few electronic components and a DC motor.  
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This test tube roller is a simple and cost-effective test tube roller. It is made from 6mm acrylic, cardboard, a DC motor, a potentiometer, and one custom 3D printed hub. The potentiometer allows for variable speeds by limiting current to the motor.
<h2>Build</h2><Br>
<h2>Build</h2><Br>
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The following are needed to build the roller:
The following are needed to build the roller:
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<li>&#188;" acrylic sheet</li>
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<li>6mm Acrylic sheet</li>
<li>DC Motor</li>
<li>DC Motor</li>
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<li>Power adapter<br>
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<li>Power supply with matching voltage to motor</li>
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<li>Power switch</li>
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<li>Potentiometer</li>
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<li>Transistor<br>
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<li>Power Switch</li>
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<li>#8-32 screws, jam nuts, and locknuts</li>
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<li>#8-32 screws, nuts, and locknuts</li>
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<h3>Assembly</h3>
<h3>Assembly</h3>
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The acrylic pieces are assembled to make the frame with screws.
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<li>Download the original CAD files for the “motor_front” and “hub” and adjust the motor mount pattern and motor hub diameter to match the dimensions of your motor </li>
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(pictures of the pieces)
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<li>Laser cut dxf files and your modified “motor_front” plate</li>
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<li>3D print the motor hub</li>
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The motor is mounted to the front piece using screws.
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<li>Screw together frame and motor. Use lock nuts on pivot joints</li>
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<li>Solder the power supply to the motor with the power switch and potentiometer in series</li>
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(pictures of the motor mounted to the front piece)
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<li>Wrap rubber bands around test tubes before inserting into hub. This is to prevent slipping as the cardboard friction fit can sometimes slip over time</li>
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A transistor can be soldered on the wall wart to control the speed.
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(picture of the wall wart)
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The hub and spinner plate are screwed on to the motor.
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(picture of the spinner plate on the motor)
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The test tubes slip fit onto the spinner plate.
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<h3>Final Assembly</h3>
<h3>Final Assembly</h3>

Revision as of 18:05, 14 October 2014

Cooper Union 2014 iGEM


Hardware



OpenGelbox

OpenRoller

OpenFuge

Microfluidics


Open Source Test Tube Roller




This test tube roller is a simple and cost-effective test tube roller. It is made from 6mm acrylic, cardboard, a DC motor, a potentiometer, and one custom 3D printed hub. The potentiometer allows for variable speeds by limiting current to the motor.

Build


Parts


The following are needed to build the roller:
  • 6mm Acrylic sheet
  • DC Motor
  • Power supply with matching voltage to motor
  • Potentiometer
  • Power Switch
  • #8-32 screws, nuts, and locknuts

Notes
A 12V wall wart was used for this but most appropriate power sources can be used.
Both a power switch and transistor are optional and can be used to regulate the power and speed of the motor.


Plans


(Need to post the dxf files and sldprt) The mounting holes and 3-d printed hub may need to be modified based on the DC motor being used.

Assembly


  1. Download the original CAD files for the “motor_front” and “hub” and adjust the motor mount pattern and motor hub diameter to match the dimensions of your motor
  2. Laser cut dxf files and your modified “motor_front” plate
  3. 3D print the motor hub
  4. Screw together frame and motor. Use lock nuts on pivot joints
  5. Solder the power supply to the motor with the power switch and potentiometer in series
  6. Wrap rubber bands around test tubes before inserting into hub. This is to prevent slipping as the cardboard friction fit can sometimes slip over time

Final Assembly


(pictures of the roller with test tubes)

The design was mainly based around the DC motor since it was the only one that could be used at the moment. Future designs can be modified to fit other DC motor's.









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