I had my machine running and fiddled with speeds and feeds. Made about 200 parts half way and the spindle died. It is the original motor on an Emco old thing that i had converted to mill wooden parts. Spindle motor died before but it just seemed to only need brushes. This time it burned the wires to the brushes. I "fixed" the wires and then broke a carbide bit because it does not seem to have full power and i had maxed the feed speeds right before it died. It did not seem to be overloaded or i would have lowered the feed speeds.
I now need to install something reliable. I think i can limp through the parts i need immediately because the second phase is lighter cutting and i have not increased the feeds in the gcode beyond the original slow settings. Hope i don't break any more bits. The problem is that the hole into which i need to fit a spindle motor is only 68 mm in diameter and can not be made bigger.
I need to cut with a 1/4" upspiral router bit and really want some decent feed speeds. Cutting maple which is pretty tough. I would like a motor that shuts down or complains instead of burning up. Currently using the DC brush type servo motor that is original to the machine and using a DC variable speed controller.
Any ideas on what might fit the hole i have in this machine? The automation tech stuff is either too wimpy or too big to fit the hole and i am not thrilled with their stuff so anyway. The original motor is connected with a belt which is the reason for the diameter limit, it is a hole for the original spindle bearings that i need to fit the spindle in. could stay belt driven but i am not at my machine shop now and for a while so i need to get something together that does not require a lot of machining.
the machine was working so well just before it died :)
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Best regards, Spencer Chase
67550-Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
(425) 791-0309
