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| RadRod67:
Thanks Dave very helpful :D |
| hopefuldave:
Thanks Dave, useful reminder! I'll add a useful sanity clause - a Horsepower at the spindle can in ideal conditions[1]; remove one cubic inch of steel or up to three of aluminium per minute, so one can multiply out width and depth of cut and feed rate to get a HP requirement and compare it to motor power, determining whether you have enough oomph for the cut - if you find the cut would take 2HP and you have a 1/2 HP motor power reaching the spindle after losses in belt/gears reduce the depth of cut to suit, not the feed rate, too slow a feed will cause the cutter to rub, overheating the cutting edges - the tool won't break but it will blunt pretty quickly! I'm not sure you gave enough emphasis to rigidity... Dave H. (the other one) [1] Ideal Conditions: Sharp cutter, Rigidity, flood coolant, Rigidty |
| DaveH:
Dave, Good point: reduce the depth of cut - not the feed rate. :thumbup: :beer: DaveH |
| piper1:
Great information thank you. |
| kayz1:
Another thank you from me to..saved on hdd and also printed for workshop draw. Lyn. |
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