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Testing the pump, ordering parts.

by Douglas


Posted 4/16/2016 12:00:28 AM



I've spent the last few days testing out the syringe pump. After a few more changes it's running pretty darn good. I ran four tests, each one twice, at various times and rates, and they all came out right spot on to the best of my testing abilities. Mostly I'm down to weighing the output on gram scales and they all come out right. At least it proves my math hasn't suffered badly with old age. Lol.

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And We Have A Pump!

by Douglas


Posted 4/29/2016 5:45:25 PM



Step one is done. The syringe pump has been completed and is running pretty well. I took a look around to see what open source pumps are out there, and in the end decided to just make my own. Each of the others had some things I liked and some I didn't, so a custom made one seemed to make sense. I'm pretty much settled on using 20ml syringes as my standard size, so I ordered some of those, and they came this week. I got 40 of them for $14.50, so make it about 36 cents each. Not to bad, I think.

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Starting point: Syringe Pump.

by Douglas


Posted 3/29/2016 1:29:19 PM



At it's most basic level electrospinning is not all that complicated. But the devils in the details. The basic idea is we set up a chamber with a nozzle at the top that emits a controlled amount of material. An electrical field of up to 30kV is established between that nozzle and a ground plate. The material being extruded is pulled and stretched by the electrical field, eventually breaking loose and flying toward the ground plate. During it's flight the solvent evaporates, leaving a mat of the material on the grounding plate. Under the right conditions, the length of the fibers that are deposited can range down into the nano scale in length. We want a machine that can produce fibers in that range. All good so far, right?

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