4th axis and fusion 360 problem

[Neale]

What speeds and feeds have you selected in the F360 CAM settings tab? In your screen shot, the machine speed drops right down at the line marked, where there is a significant move in A.

[amxen]

[amxen]

iv changed nothing from this

[Doddy]

I'm probably talking the proverbial... but 490?, your Mach3 installation is licensed?

[amxen]

Yes it's I'm running some more code and it's still doing the same thing but at line 234

[amxen]

been trying to get this working for over a week now . almost giving up on it

[Doddy]

Both examples that you show freeze with very slow feed rates (F554/F373) compared to the preceeding gcode - can you confirm that these lines do indeed have the lowest feed rates upto that point in the gcode?

If so, add a zero (x10) and try an air-cut, see if the behaviour is the same

[amxen]

this is some more code im running and it is doing the same thing what do you think

X-16.223 A24.234 F8759.5091
X-16.233 A23.903 F20792.2569
X-16.242 A23.465 F17076.7648
X-16.247 A23.027 F18351.0809
X-16.248 A-2.375 F346.9053 <------- stops at this line every time and runs really really slow
X-16.24 A-3.806 F5889.3929
X-16.22 A-5.243 F5463.8838
X-16.187 A-6.724 F4964.8767
X-16.139 A-8.234 F4565.2459
X-16.077 A-9.76 F4244.1414