In case you wonder why air is superior, it boils down to the fact that the force of an electric solenoid is inversely proportional to stroke length, while a pneumatic cylinder has constant force regardless of stroke length. Air also produces essentially no heat at the point of use. Unfortunately, compressing air is extremely inefficient, so it takes a lot of electricity to run a pneumatic system. You also have to deal with the noise of the compressor (unless you get piped air from the power house like I do :-).
-- Ralph ________________________________________ From: Dave [e...@dc9.tzo.com] Sent: Wednesday, October 10, 2012 10:32 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Gluing little balls Solenoids generally stink when it comes to motion control. Air cylinders are much better especially with flow controls attached. Just control a solenoid valve instead of a solenoid actuator. You need a 4 way valve to effectively control a small air cylinder. It would be worth the addition of a compressor. Small air lines - like 6mm or 1/4" are easy to route. Find a large hydraulic/pneumatic supplier and they will hook you up. There are scads of Bimba type air cylinders on Ebay. Common industrial names are Festo, SMC, Bimba, etc Dave ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
