Hi guys,

I have a problem with Fusion 360. I use this postprocessor: https://github.com/guffy1234/mpcnc_posts_processor. Whenever I generate the gcode from fusion the x and y axis have negative values.

Before I start the gcode, I position the tool head manually and home all axes with G92. Then I start the gcode and the machine instantly stops with the error "outside machine limits".

Here's an example of the gcode:

;Fusion 360 CAM 2.0.8407
; Posts processor: DIYCNC_RepRapFW.cps
; Gcode generated: Sonntag, 31. Mai 2020 17:23:07 GMT
; Document: Unbenannt
; Setup: Setup1
; 
; Ranges table:
; X: Min=-372.45 Max=375.4 Size=747.85
; Y: Min=-357.948 Max=357.248 Size=715.196
; Z: Min=-2 Max=15 Size=17
; 
; Tools table:
; T1 D=16 CR=0 - ZMIN=-2 - Schaftfraser 

; *** START begin ***
G90
G21
M84 S0
G92 X0 Y0 Z0
; *** START end ***

; *** SECTION begin ***
;Planen1 - Milling - Tool: 1 -  Schaftfraser
; X Min: -372.45 - X Max: 375.4
; Y Min: -357.948 - Y Max: 357.248
; Z Min: -2 - Z Max: 15
M453 P2 I0 R30000 F200
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
M291  P"Turn ON 5000RPM" R"Spindle" S3
; COMMAND_COOLANT_ON
M117  Planen1
G0 Z15 F300
G0 X375.4 Y-357.948 F2500
G0 Z5 F300
; MOVEMENT_LEAD_IN
G1 Z-0.4 F1000
G1 X375.396 Z-0.509 F1000
G1 X375.385 Z-0.618 F1000
G1 X375.367 Z-0.726 F1000
G1 X375.341 Z-0.832 F1000
G1 X375.308 Z-0.936 F1000
G1 X375.268 Z-1.037 F1000
G1 X375.221 Z-1.136 F1000
G1 X375.167 Z-1.231 F1000
G1 X375.107 Z-1.323 F1000
G1 X375.041 Z-1.41 F1000
G1 X374.969 Z-1.492 F1000
G1 X374.892 Z-1.569 F1000
G1 X374.81 Z-1.641 F1000
G1 X374.723 Z-1.707 F1000
G1 X374.631 Z-1.767 F1000
G1 X374.536 Z-1.821 F1000
G1 X374.437 Z-1.868 F1000
G1 X374.336 Z-1.908 F1000
G1 X374.232 Z-1.941 F1000
G1 X374.126 Z-1.967 F1000
G1 X374.018 Z-1.985 F1000
G1 X373.909 Z-1.996 F1000
G1 X373.8 Z-2 F1000
G1 X365 F1000