1.5kw? as in 2 hp? Seems excessive for drilling .020 inch diameter
holes in pcb's. Milling .001 inch copper sheet isn't a major job either.
Maybe 1/4 hp would be adequate, surely 1/2 hp?
If you run across a spindle in that range (30000, 40000, 50000 rpm),
let it be known. I looking for such a beast for milling stencils in 3 mil
& 5 mil brass.

Hul


Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
I need to equip my R2E4 with an add-on high-speed spindle for drilling
and milling PCB prototypes.

The little 1.5KW water-cooled spindles from China look attractive. With
one of those, a matching 400Hz inverter, and a little cobbling, it looks
like I can get into service for under $500.

Does anyone have any experience with those, any brand recommendations,
life-expectancy, etc??

Thanks,
Lloyd