Questions on using a moving gantry style mini-mill...

[Davek0974]

Thanks JAZZ,

I was unsure if the onion skin would be enough to hold the part for the finish op's, have been messing in sheet cam and running simulations etc, seem to have it sorted i think but i can now re-order the processes to do all the roughing first.

What sort (if any) lube/coolant do you use on aluminium? I have enough parts in now to build a pressurised fog-less system but just wondering what people put in them :)

Back to the CAM, shapes like the odd shaped internal part on my drawing, I have roughed out the bulk with a 5mm tool, that leaves of course 2.5mm rads in all the corners, are you saying to finish cut that with the 2mm tool in one pass?

Do lead-ins and outs feature or forget them for the minute?