I need a little help with sorting out if it’s something I am doing or a setting or process in fusion 360 I am missing.
I mainly cut out aluminum sheet for aircraft panels and it seems that I always have to set the offset in the stock bottom well below the bottom of the stock for the cut to go through on my 1/4 end mill. We are talking atleast .05 -.08 inches and then it barely gets into the waste board.
Using the tool setter at the start, I get the same results if I select the top line or the bottom line for the contour I am I doing. I don’t mind cutting the waste board, but I feel like I am missing something.
Is it worth double checking the thickness of your aluminum stock, and making sure it matches your F360 settings. I use F360 - still learning - and prefer to put in exact stock measures in the setup (I too have been milling mostly aluminum). Perhaps also check what you are using in your heights tab - stock, model, etc… - to see if there is anything that could be causing the issue.
@Spectre6573 , are you using a downcut or a standard upcut bit when cutting? .05-.08 is pretty substantial. I could see deflection being a definite issue if you were using a downcut bit. You might also try a 1/8" bit to minimize cutting forces and material removal, depending on the gage aluminum you are cutting.