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| Most ambitious milling project so far... |
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| metalmad:
Hi John that mill looks the part Mate :thumbup: but why are u only using a 6 mm bit? |
| kvom:
using the G-Wizard calculator, the recommended DOC for slotting is .73mm at 1734RPM for a 6mm HSS endmill. The criterion used by the calculator is to limit the deflection to less than .02mm (any more there is risk of breakage with more chatter). The deflection depends on how far the tool extends from the collet. I set it to 25mm. Reducing the "stickout" to 20mm allows a 1.45mm DOC, as the endmill is thus stiffer. While a power feed is great, you lose the feel. It helps if your DRO will indicate feedrate. Else, you'd want to calibrate to the feed knob. Being able to calculate feedrate for a given tool is then very useful. I'd recommend you try G-Wizard. |
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