Mill plunges into work piece at start

Total newbie trying to get started with a desktop mill. I set the spindle safely above the table for testing so it doesn't actually crash into the work or table but if would otherwise. File from Fusion 360 is below. LinuxCNC asks for tool 1, then plunges into what would be the table. When it gets to the first location it raises to 0.6 then pecks the holes as expected. At the end it plunges into the work again.

I set home for x and y as the center of the piece and home for Z above the part. Then touch off X and Y as the same and Z as slightly lower (to simulate the top of the part). What am I doing wrong?

%
(DIESETMILLING1)
(T1 D=0.125 CR=0. TAPER=45DEG - ZMIN=0. - CHAMFER MILL)
N10 G90 G94 G17 G91.1
N15 G20
N20 G53 G0 Z0.
(DRILL3)
N25 M9
N30 T1 M6
N35 S5000 M3
N40 G54
N45 M8
N55 G0 X-2.5 Y-1.5
N60 G43 Z0.6 H1
N70 G0 Z0.2
N75 G98 G81 X-2.5 Y-1.5 Z0. R0.2 F13.123
N80 Y1.5
N85 X2.5
N90 Y-1.5
N95 G80
N100 G0 Z0.6
N110 M9
N115 G53 Z0.
N120 M30
%

I used the linuxCNC post processor within Fusion 360 so I am a bit confused on why or how I make those changes in the output other than manually editing the file for each project... I haven't edited the output in any way and didn't think I needed to.

It's an AutoCad product. Free for companies under $100k. The link is:
www.autodesk.com/Fusion360
You start with the trial and at the end of trial period (a month as I recall) they ask you to register.

Forum is here:
forums.autodesk.com/t5/fusion-360/ct-p/1234

I will post my question there also and see what their users say...

Thanks!

There was a existing tool offset for tool 1 that apparently is an example from the initial install of LinuxCNC. I made it zero. But the main issue was my setup of the axis in stepconf. Not knowing any better I setup all axis with plus and minus travel with zero in the center. I just changed Z so zero is at the uppermost travel (farthest from table). It now operates as expected. Thanks for the help!