Quote:
Originally Posted by Al Skierkiewicz
Ether,
The stated use requires some form of feedback. The user intends to control a flow of 1-1000ml +/- 2 ml.
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Al, I have to side with Ether here. I can command a stepper motor to move my PC Board drill machine's table 0.00025" at a time, repeatably and reliably, over about 10 inches - open loop. I'd have to think I could move a syringe plunger equally as precisely and accurately.
Rich, you might consider Gdeaver's response more carefully, as a peristaltic pump can do that easily with at least an order of magnitude greater precision.