Loading

StrawPipette

by cpendlebury, published

StrawPipette by cpendlebury Jun 23, 2012

Description

This is a improvised pipette for DIY biology using a drinking straw. Use this to pipette small volumes until you get a real micropipette!

See it in action here: youtu.be/Q6cFps88G9M


Recent Comments

view all
so this is just a grip for a straw?

More from Biology

view more

Makes

Liked By

view all

License

StrawPipette by cpendlebury is licensed under the Creative Commons - Attribution license.

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

Instructions

1. Print StrawPipette.stl
2. If necessary, clean up hole so straw slides in easily. The straw should stay in snugly, but shouldn't crush the straw.
3. If required, sterilise some drinking straws.
4. Insert straw and use pipette:
i. Insert into liquid, cover top of straw with thumb.
ii. hold thumb on straw while transferring liquid.
iii. release thumb to dispense liquid.
5. Change straw when you would change a micropipette tip.

+-+

It operates in the range 200μL to 1000μL, and with practice you should be able to reliably dispense liquid in 100μL increments.

Volume dispensed = π * radius of straw^2 * depth into liquid
so this is just a grip for a straw?
Top