Dear all, I have an issue with my CNC with BlackBox controller. CNC is quenbe ULTRA 1000 x 1000 with 2,2 kW spindle. In Fusion I created 25 x 25mm calibration part with 2x 4mm holes. I calibrated X, Y with help of caliper. When I send G90 X150, machines goes to X 150,0xmm. Same for Y axis. Problem starts when I cut this square. X axis on the spot 25mm, Y axis is 25,2mm. For 2 holes there that I am using Bore function. Holes are oval and have 4mm only when I am measuring distance between 7 o'clock & 1 o'clock. The rest of inner diameter varies from 3,6mm in X and 3.8mm in Y. As tool I am using 2mm single flute, I measured it and actual diameter of flute it is 2.25mm. So this I also updated in Fusion. In Fusion I imported new OpenBuild post process v1.0.36. I have checked all screws on the machine. Now I am clue less what to do next. Do you have any idea what can cause this issue? Thank you for any suggestion. Both GCodes are in attachment. GCode for square: (Made in : Autodesk CAM Post Processor) (G-Code optimized for default controller) (OpenBuilds CNC : GRBL/BlackBox) (Post-Processor : OpenbuildsFusion360PostGrbl.cps V1.0.36) (Units = mm) (Arcs are limited to the XY plane: if you want vertical arcs then) (edit allowedCircularPlanes in the CPS file) (Drawing name : cutting v30) (Program Name : 1_calib_square_25mm) (1 Operation (1 : 2D Contour15) ( Tool 1: Flat End Mill 1 Flutes, Diam = 2.25mm, Len = 6.00mm) ( Spindle : RPM = 12000) ( Machining time : 22 sec) G90 G94 G17 G21 (When using Fusion 360 for Personal Use, the feedrate of) (rapid moves is reduced to match the feedrate of cutting) (moves, which can increase machining time. Unrestricted rapid) (moves are available with a Fusion 360 Subscription.) (Operation 1 of 1 : 2D Contour15) G54 (This relies on homing, see Search Results for Query: G53 fusion | OpenBuilds ) G53 G0 Z-10 G0 X42.725 Y28.2 M3 S12000 G4 P1.8 G0 X42.725 Y28.2 Z15 F1000 Z5 G1 Z-1.575 F120 Y28.208 Z-1.633 F1000 Y28.23 Z-1.688 Y28.266 Z-1.734 Y28.312 Z-1.77 Y28.367 Z-1.792 Y28.425 Z-1.8 Y28.65 X42.717 Y28.708 X42.695 Y28.763 X42.659 Y28.809 X42.613 Y28.845 X42.558 Y28.867 X42.5 Y28.875 X28.875 Y56.125 X56.125 Y28.875 X42.5 X42.442 Y28.867 X42.388 Y28.845 X42.341 Y28.809 X42.305 Y28.762 X42.283 Y28.708 X42.275 Y28.65 Y28.425 Y28.367 Z-1.792 Y28.312 Z-1.77 Y28.266 Z-1.734 Y28.23 Z-1.688 Y28.208 Z-1.633 Y28.2 Z-1.575 G0 Z5 G1 X42.725 Z-3.075 F120 Y28.208 Z-3.133 F1000 Y28.23 Z-3.188 Y28.266 Z-3.234 Y28.312 Z-3.27 Y28.367 Z-3.292 Y28.425 Z-3.3 Y28.65 X42.717 Y28.708 X42.695 Y28.763 X42.659 Y28.809 X42.613 Y28.845 X42.558 Y28.867 X42.5 Y28.875 X28.875 Y56.125 X56.125 Y28.875 X42.5 X42.442 Y28.867 X42.388 Y28.845 X42.341 Y28.809 X42.305 Y28.762 X42.283 Y28.708 X42.275 Y28.65 Y28.425 Y28.367 Z-3.292 Y28.312 Z-3.27 Y28.266 Z-3.234 Y28.23 Z-3.188 Y28.208 Z-3.133 Y28.2 Z-3.075 G0 Z15 (This relies on homing, see Search Results for Query: G53 fusion | OpenBuilds ) G53 G0 Z-10 M5 G0 X-10 Y-10 M30
