Am I crazy to wonder why Fusion creates a deep drilling tool path that BEGINS with a X/Y move INSTEAD of raising the Z to clearance height? Is there a setting that I am missing to tell fusion that it’s not supposed to crash into the part before it begins to drill?
Thanks in advance for any wisdom you can offer!
I never have an issue. Are you telling Fusion the correct length of the drill bit?
Thanks for the quick reply!!!
So I double checked and you are correct Sir, the length of my Bit was not accurate. I happily edited the tool and re-posted the file. Only to find the same behavior. Here’s a snippet of the Code:
(v1.6-af)
(OP 18 MR FRONT-DRILL)
(#9 DRILL BIT)
(T9 D=0.1961 CR=0 TAPER=135deg - ZMIN=-0.6906 - drill)
G90 G94
G17
G20
(Drill16)
T9
S8000 M3
G54
G0 X1.1333 Y-0.7462
Z1.0468
Z1.0368
G1 Z0.9378 F7.5
As you can see- Fusion wants to direct X & Y before it addresses the Z. I don’t believe this has anything to do with the Tool specs. This is an issue with default Fusion behavior. As posted the bit will crash into the part before it attempts to drill. This results in me having to manually move the machine to a safe Z height (if this senile ol brain can remember to do that LOL) OR manually edit the code- neither of which are convenient. Any other ideas? Thanks!
Glad it worked out. Happy drilling…
Huh? I think you misunderstood- nothing worked out. I still have the same issue
When you set your drill program height settings, are you adjusting the retract height to a safe setting? Fusion may be assuming that the height hasn’t changed from the end mill. I will take a look at my machine for you in the morning. I definitely think we are missing a setting .
I haven’t seen it leave off the G28 Z0 line before.
I’m not at my pc where I can toy with settings in fusion, but I see what you’re missing. My first guess would be maybe a setting in the post processing window in fusion. If I get by the shop this evening I will take a peek and see what I can find.
Edit: I think it’s called retracts or safe retract. Something along those lines. May or may not be the problem.
DUUUUUDE!! That was it! In the Post Safe Retract settings- gotta set to G28! FOOKING BRILLIANT!! THANK YA THANK YA THANK YA!!! Very Grateful!!! 
FOLLOW UP (in case anyone GAF)…. I had turned off the G28 setting in Fusion because my work flow is (I guess…. weird/unconventional).
Setting the G28 in Fusion/post /safe retracts section ALSO makes the gantry return to home after the program has been run. This is annoying AF because I have found it to be more convenient for my Vise to be set-up at the front of the machine (closer to the doors). Most of my parts require multiple tool changes. If the gantry is always returning to home after each run, I am jogging and jogging and jogging to the front to make tool changes (which are already a time suck). Hence safe retracts was set to Clearance height (leaving the gantry near the front).
There are not a lot of choices in the safe retract drop down but I think I will explore using the G53 command to see if that will resolve the Go to a safe Z height prior to drilling issue. It seems really lame of fusion to tie together a Z0 command at the beginning of the code to a Home command at the end but that’s Autodesk for ya- it’s THEIR world and I’m just living in it I guess.
In any case Thanks for putting me in the right direction!