Aluminum/Brass/Copper and Fusion 360

[trinculo54]

Hi all;

I am working on cutting thin metals (less than 1mm) with my Mega V with Fusion 360 using the 2D contour method of cutting with fairly good success. 


The biggest question I have is what I think would be a setup issue...

I can typically cut with a single pass with a 1mm - 1.5mm end mill; however when first "piercing" the metal it sometimes does not go all the way through the material before it starts moving in X and Y.  This can be flexion in the Z and or metal... but I am wondering if there was a setup method that I could try.  I know when doing clearing Fusion sets up a spiral entry into the material.  I think this would help, or even a ramp with X and Y movement; though it would then have to overshoot the entry point to clear.  Anyway... does anyone know of a setting that I can try?  I haven't been able to find anything.

Another thought would be to go from an end mill to a ball or bull nose. Or even since it's pretty thin material a taper.  

Again any thoughts or ideas would be appreciated :-)

James

[oldtech]

I'd go with a ball nose to avoid the shock that occurs with a flat end mill.