Greetings everybody; >From the blog of a canary in a coal mine: A bug report.
I am running the latest 2.8.0pre1 on all my live machines as I had some probs with the early 2.6.x versions crashing so I switched to the latest, which was stable at the time, and never switched back, and in all this time I think this is my first real, I think I have found a bug, observation. In the gcode I am working on ATM, the extant display of the X axis is way off, high, the only X motion in this code is the width of the chord of a curve less than 180 degrees of arc. Perhaps 1/2 to 3/4" depending on how much past the edges of the workpiece the Y swing is. The arc stands on end when the left Z axis is displayed, and does not appreciably change if I change the R in the g3 line. Nor does it change when I change the displayed view. There is some variation of course, but I haven't tried to quantify it. I just checked this same code in the 2.7.4 sim-axis, and the x extant displayed by that version is correct at nominally .65 inches, the height of the chord + the x axis motion as it creeps up on the wanted result. 2.8.0-pre1-1514-ge8151f0 displays this measurement as at least 2" more, and has for the last 2 or more updates. Can a bug be raised on this? The code is pretty simple: ( roundover-strap.ngc - to do the compound curve smoothing on the top ) ( outer edge of the "leather straps". The cutter is close to 4" OD ) ( with a single tooth. The point to trim is where two curves meet on ) ( the end of this part, and the vise is tipped to make that curved but ) ( sharp edge junction into a straight horizontal line, nominally 45 ) ( degrees that a std g3 motion about the Z axis can follow. ) G20G17 #<_r_factor> = 0.730000 #<_y_in> = [#<_r_factor> *.950000] #<_x_tmp> = 0.000000 #<_z_tmp> = 0.000000 G64 p.005 S2250 m3 o100 WHILE [#<_x_tmp> lt 0.150] #<_x_tmp> = [#<_x_tmp> +.002] g1 F40 y-#<_y_in> g1 f1 x#<_x_tmp> g3 f10 y#<_y_in> r#<_r_factor> o100 ENDWHILE M5 M2 Thanks guys. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
