Hi All,

I want to cut a 50mm diameter cylinder out of a block of 6061 aluminium that is 40mm thick. I have downloaded GWizard to determine the correct feed and speed. My CNC machine is a 6040.

The figures entered into GWizard are:

Material - 6061 aluminium
Tool - Carbide Endmill
Tool Dia - 6mm, 3 flutes and a 'stickout' of 40mm
Cut depth - 4mm
Cut width - 4.6608mm (I don't understand this bit)
KW limit - 0.8kW
RPM Limit - 24000
Min RPM - 1200
Feed Limit - 10160 (2%) (I don't understand this bit either)

The RPM comes out at 14031 RPM and Feedrate 205.3 mm/min

All the reading are now in black but a warning re "Chipload is low, may cause rubbing!" is displayed.

Please can someone check my figutes and what will be the best way to mill this cylinder from the block?

Regards

Gary