We're using this linear stepper motor: http://www.mpja.com/Stepper-Motor-Linear-5V/productinfo/17284%20MS/
It's quite low power, which may wind up being a problem if we want to squeeze fairly viscous gels through a tiny nozzle. But so far that's not been a problem.
The syringe we're using is a very thin 1ml disposable Eppendorf, which gives us a resolution of 0.5 ul per full step on the stepper motor. That kind of resolution is probably overkill, compared to the limitations imposed by surface tension on what kind of volumes you can realistically work with.
Patrik
On Sunday, August 4, 2013 7:27:12 AM UTC-7, DrBrian wrote:
--Patrik,
Any model number?On 4 Aug 2013 10:05, "Patrik D'haeseleer" <pat...@gmail.com> wrote:Nice! Our DIY syringe pump for the bioprinter is even simpler, using a $10 linear stepper motor. Got to do some more testing on it though.
Patrik
On Saturday, August 3, 2013 6:18:42 AM UTC-7, Jordan Miller wrote:--Check out Ravi Sheth's CellStruder. it works great (he uses it on an ordbot)!Ravi is cc'ed above in case you have any questions.
cheers,jordanhttp://2009.igem.org/Team:Washington-Software closest I could find--
On Thursday, August 1, 2013 5:44:33 PM UTC-7, Sebastian wrote:Does anyone know if one of these exist :D?Steppers with micro stepping drivers. Peristaltic pumps. And some misc hardware. Seems simple in essence, just a robotic arm. Keeping things sterile would be interesting. Seems doable. The pipetting accuracy may be a real issue. What if you just strap a 8ch pipette to an arm and add a linear actuator. It can just take from a reservoir. Again, fairly doable but never heard of one actually being made...just a whole lot of talk.
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