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Mich1969

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  1. Aluminium and other soft metals have had some success with some coolants and the correct cutting tool. I will followup once I check with my brothers (both are General Machinists and work with these soft metals day in and day out making spot welding equipment for the automotive sector). I don't think that an 1/8 inch depth of cut is that bad, even though it is a slut cut. As was said there are calculations based on the material for every part from machine power (HP/Watts) needed, rpm to run the cutter, the feed rate and depth of cut. And each piece of the puzzle affects the next. I have all those formulas in a box from my college days. I haven't used them personally because I don't work in that field but will see what I can find.
  2. I would LOVE to get my hands on the machine and try to fix it. I have absolutely not papers that say I know anything about computer repair; however over the years of building and fixing I have fixed 2 computers that several stores had given up on. The 1st was back in the day of jumpers on the boards and 2 of the add-on cards turned out to be hard-wired to the same DMA channel. The second was a more recent computer running Windows 10. It ended up having 9 partitions on the HD formatted to FAT32 instead of NTSF like the rest of the hard drive. I've also replace cell phone and tablet internal components.
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