Sterling Dump

[ihbuilder]

Joe , I got better results slowing the spindle down and a light spray of wd-40 . I know your doing it by way of cnc and I'm in the cave yet by hand but I think the principle would be the same . no ? my issue is getting my big mill going so I can play with it and see how it works with my amateur programing skills BTW , from where I'm sitting , the grill look great

IHSteve

[will916691]

running at 10,500 rpm that endmill is going to heat up fast you really need some coolant the math for speeds and feeds is tricky it may look good on paper but not work so well in the real world I would try and cut your spindle down and your feed down as well and see what that does for you also some oil to keep your work cool would sure help also how well is you part clamped down? if you tap on it in the center does it sound hollow? did the sound of the cutting change before it snaped? just want to make sure its not a issue with chatter

Will