I am trying to put a table together with some general feed and speed data for the Cobra 42. it is a fairly light machine and i have been having trouble getting the results i need when using standard insert/tool data recommendations. likely because the machine isn't a traditional big powered heavy turning center. it has 7.5hp spindle (which is probably a bit generous). I found a chart online that looked fairly well laid out and decided to use it as a template, but the SFM recommendations seem a bit aggressive. can someone who uses the cobra regularly perhaps help me better fill in the SFM Roughing and SFM Finishing data maybe, I would be grateful for any assistance!

Thanks,

Chris

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