Improving cutting speeds

[gmack (Gerald Mackelburg)]

@LiamN

For the 1/4" cutters; 15k RPM, 300metres / min.
In the heavy birch ply I’m currently going 6mm deep with 2mm Optimal Load in adaptive clear but the spindle sounds like it could do more than that, still working up from the little AMB Kress.
In lighter material (with less epoxy) you can push harder.

At 1524 mm/min (60 in/min) feed rate, that’s 0.047 mm (0.002") thick chips with likely 80 Watts (0.1 HP) of cutting power and 1.7 kg (3.7 lbf) cutting force.

@LiamN

If I’m cutting a contour without an adaptive or pocket clearing first there’s a lot more engagement so I run less depth, 4mm or so in the birch ply and cut a slot

At 1524 mm/min (60 in/min) feed rate, that’s 0.0508 mm (0.002") thick chips with likely 200 Watts (0.2 HP) of cutting power and 3.6 kg (7.9 lbf) cutting force.

@LiamN

For the smaller 1/8 inch cutters which are generally doing wall finishing or detail it’s 15k RPM, 150 metres / min and then 5mm stepdown with 1mm stepover

At 1524 mm/min (60 in/min) feed rate, that’s 0.0472 mm (0.0019") thick chips with likely 30 Watts (0.05 HP) of cutting power and 1.4 kg (3.1 lbf) cutting force.