The chips flow out of pockets really well and the tools stay sharp forever. Better have flood coolant or a good mister, but the 4FL doubles your effective RPM over a 2FL and the chips are very fine - no clogging or nesting. 4 flue HSS fine-tooth roughing end mills for aluminum. Getting to the point, here's what I'm doing to maximize MRR without chatterġ. I've got the same floppy colum problem, but I'm working on a column reinforcement (big A-frame column back plate). Specifically for roughing, what strategy would you recommend to take advantage of the remaining spindle power? Would you increase radial engagement for a wider chip or rather increase the chip thickness? Would plunge roughing be worth looking into? I've always wanted to experiment with high feed milling as you can get high material removal with smaller tools at lower spindle speeds.
ROUTER TABLE TOOL STEPOVER FULL
I have found that trochoidal toolpaths with full depth of cut engagement seem to work well, but I have always stuck to 15% of cutter diameter stepover in aluminum and roughly. The sky is the limit when it comes to feedrate and accelerations for me. My machine (G0704) does not have the column stiffness to handle tools much larger than 3/8" nor does the 5000rpm max spindle speed allow me to run small tools really fast like a router table would. I have a 2.5 HP spindle that I would like to take full advantage of. Just wanted to open a discussion on what people find works well for benchtop class machines for CNC strategies.
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