What strategy should be used for a part with grooves 45deg from square?

[kalmdown]

Am using a SnapMaker 2.0 to CNC this part out of plexiglass. This is my 1st Z-axis curved project. I was thinking of using its Ball bit using the Contour strategy but other strategies seem to have differing benefits and it is unclear what would be most appropriate. Changing bits on the SnapMaker is a manual process and feels like it could introduce errors. 

Plexiglass Soap Shelf

[a.laasW8M6T]

Parallel with perpendicular passes is probably going to give the best results here,

If you upload your .f3d (File>Export> save as .f3d in fusion)file here I could make some suggested toolpaths for you to look at.

[kalmdown]

Thanks! Here is the file. 

[a.laasW8M6T · Accepted solution]

I've uploaded a file with some toolpaths.

I have a 2Dcontour going around the outside 1st, if you want to fully clean up the material with the ball nose you will need to drop the cutter below the part like in the second setup, which will mill into your spoilboard if your ok with that?

for the 3d milling it turns out that just a plain parallel toolpath should yield pretty good results without the perpendicular passes, it will be fairly slow though, over 4 hours.

[kalmdown]

My last project ran 48hrs. Setting this one up...see how it goes.