I ordered my Piezo actuator today. My Piezo actuators came from http://www.piezodrive.com/ I got a -30>>150V actuator type SA050520. Have been learning about making small features, including EDM
The block that houses the delivery chamber will be temperature controlled I’ve done alot of reading, including this short gem http://doc.utwente.nl/58366/1/thesis_Wijshoff.pdf
drawing below from the above thesis :
Other required reading..
http://web.tuke.sk/scyr/data/upload/1268901041.pdf
Particularly figures 6,7 and 8 showing the Thixotropy
glenenglish 