Le 22.02.2012 21:48, Kirk Wallace a écrit : > I want to mount an outrunner (or other) to a NMTB40 tool holder to try > some circuit board routing. I like the outrunner form because it looks > like the motors seem shorter for the same power. I haven't flown model > planes for over twenty years so I've lost my feel for sizes and > capacities. Does anyone have any experience with outrunners for milling > applications? I'm looking at getting a cheap motor to experiment with > then build on the experience, so the motor will need to be in the > disposable price range.
for PCB routing, inrunner will be better, as you need as much speed as possible (40k to 100k rpm). I do some trials by the past with a cheap inrunner, abd even without load the temperature rise was too quick to allow any real use. I was strongly suspecting the VFD, as cheap as the motor... but I never spend more time on it, I got a 24'000 rpm spindle that is OK (but way too slow to make fast routing) I'm right now waiting for a chinese spindle than must reach 60'000 rpm, will see, this shall give a big up to ma PCB routing speed. ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
