I started to use straight flute bit, and the technician at the CMT center said that those bit are 6mm, but of course cost me nothing to check.
By they way, I don’t talk of little gap, I talk about a couple of mm on a pocket! Is like the machine cut 2 different drawing
Is pretty much .7mm (that is absurd for my needing), but how can be possible that the bit is .35mm smaller and the channel is 6mm? The bit is new, bought on Monday and cutted one time
And the cut?
Mmm 99.9% impossible, I never use on path cut, unless I have to make centerline but I use a 0.48mm bit and the command is ‘engraving’ on RhinoCAM
Can i ask what is your belt tension?
2.1kg pretty much? I have them at the double…? Or little less below 4kg, for sure! Maybe is too much?
V-Wheels is for sure ok, I check them after every cut, is something that I enjoy to do.
Used the same procedure to do my currect calibration and on every kind of distance (short or long) the machine is accurate. Maybe the vibrations have moved the tiny pot for the current setting?
The very last thing that come in mind is that there’s something wrong with the post, but I have downloaded it from Rhinoceros website
Can you post the gcode for a pocket or even the test you did with the square and circle? Take point A and point B and see how much the Gcode says to move. Add in the bit and you’ll get what it should be cutting.
I’m currently not in the lab, 20:39PM here 
But I can post the gcode from the RhinoCAM that I have here (which is the 2016 version, and 2014 in the lab, but same post).
500x500 profiling and 250x250 pocketing
Anyway, this is for profiling:
G20
G90
(2 1/2 Axis Profiling)
M3 S20000
G0 Z0.2362
G0 X-0.6454 Y0.1509
G1 Z-0.0394 F63.0
G1 X-0.3984 Y0.1900 F35.4
G1 X-0.3684 Y0.1929 F31.5
G1 X-0.3382 Y0.1922
G1 X-0.3083 Y0.1878
G1 X-0.2792 Y0.1799
G1 X-0.2513 Y0.1685
G1 X-0.2249 Y0.1538
G1 X-0.2005 Y0.1361
G1 X-0.1783 Y0.1155
G1 X-0.1589 Y0.0925
G1 X-0.1423 Y0.0672
G1 X-0.1290 Y0.0402
G1 X-0.1189 Y0.0117
G1 X-0.1124 Y-0.0178
G1 X-0.1076 Y-0.0373 F35.4
G1 X-0.0994 Y-0.0557
G1 X-0.0881 Y-0.0723
G1 X-0.0740 Y-0.0867
G1 X-0.0576 Y-0.0984
G1 X-0.0394 Y-0.1070
G1 X-0.0200 Y-0.1122
G1 X0.0000 Y-0.1140
G1 X19.6850
G1 X19.7048 Y-0.1122
G1 X19.7240 Y-0.1071
G1 X19.7420 Y-0.0987
G1 X19.7583 Y-0.0873
G1 X19.7724 Y-0.0733
G1 X19.7837 Y-0.0570
G1 X19.7921 Y-0.0390
G1 X19.7973 Y-0.0198
G1 X19.7990 Y0.0000
G1 Y19.6850
G1 X19.7973 Y19.7048
G1 X19.7921 Y19.7240
G1 X19.7837 Y19.7420
G1 X19.7724 Y19.7583
G1 X19.7583 Y19.7724
G1 X19.7420 Y19.7837
G1 X19.7240 Y19.7921
G1 X19.7048 Y19.7973
G1 X19.6850 Y19.7990
G1 X0.0000
G1 X-0.0198 Y19.7973
G1 X-0.0390 Y19.7921
G1 X-0.0570 Y19.7837
G1 X-0.0733 Y19.7724
G1 X-0.0873 Y19.7583
G1 X-0.0987 Y19.7420
G1 X-0.1071 Y19.7240
G1 X-0.1122 Y19.7048
G1 X-0.1140 Y19.6850
G1 Y0.0000
G1 X-0.1134 Y-0.0119
G1 X-0.1124 Y-0.0178
G0 Z0.2362
G0 X-0.1124 Y-0.0178
G0 X0.0000 Y0.0000
M30
And this is for pocketing:
G20
G90
(2 1/2 Axis Pocketing)
M3 S20000
G0 Z0.2362
G0 X9.8628 Y9.8302
G1 Z0.0079 F63.0
G1 Z-0.0157 F35.4
G1 Y9.8628 Z-0.0215 F31.5
G1 X9.8222 Z-0.0286
G1 Y9.8222 Z-0.0358
G1 X9.8425 Z-0.0394
G1 X9.8628 F35.4
G1 Y9.8628
G1 X9.8222
G1 Y9.8222
G1 X9.8425
G1 Y9.7653
G1 X9.7653
G1 Y9.9198
G1 X9.9198
G1 Y9.7653
G1 X9.8425
G1 Y9.7083
G1 X9.9768
G1 Y9.9768
G1 X9.7083
G1 Y9.7083
G1 X9.8425
G1 Y9.6513
G1 X9.6513
G1 Y10.0338
G1 X10.0338
G1 Y9.6513
G1 X9.8425
G1 Y9.5943
G1 X10.0907
G1 Y10.0907
G1 X9.5943
G1 Y9.5943
G1 X9.8425
G1 Y9.5373
G1 X9.5373
G1 Y10.1477
G1 X10.1477
G1 Y9.5373
G1 X9.8425
G1 Y9.4803
G1 X10.2047
G1 Y10.2047
G1 X9.4803
G1 Y9.4803
G1 X9.8425
G1 Y9.4233
G1 X9.4233
G1 Y10.2617
G1 X10.2617
G1 Y9.4233
G1 X9.8425
G1 Y9.3663
G1 X10.3187
G1 Y10.3187
G1 X9.3663
G1 Y9.3663
G1 X9.8425
G1 Y9.3094
G1 X9.3094
G1 Y10.3757
G1 X10.3757
G1 Y9.3094
G1 X9.8425
G1 Y9.2524
G1 X10.4327
G1 Y10.4327
G1 X9.2524
G1 Y9.2524
G1 X9.8425
G1 Y9.1954
G1 X9.1954
G1 Y10.4897
G1 X10.4897
G1 Y9.1954
G1 X9.8425
G1 Y9.1384
G1 X10.5467
G1 Y10.5467
G1 X9.1384
G1 Y9.1384
G1 X9.8425
G1 Y9.0814
G1 X9.0814
G1 Y10.6036
G1 X10.6036
G1 Y9.0814
G1 X9.8425
G1 Y9.0244
G1 X10.6606
G1 Y10.6606
G1 X9.0244
G1 Y9.0244
G1 X9.8425
G1 Y8.9674
G1 X8.9674
G1 Y10.7176
G1 X10.7176
G1 Y8.9674
G1 X9.8425
G1 Y8.9104
G1 X10.7746
G1 Y10.7746
G1 X8.9104
G1 Y8.9104
G1 X9.8425
G1 Y8.8534
G1 X8.8534
G1 Y10.8316
G1 X10.8316
G1 Y8.8534
G1 X9.8425
G1 Y8.7965
G1 X10.8886
G1 Y10.8886
G1 X8.7965
G1 Y8.7965
G1 X9.8425
G1 Y8.7395
G1 X8.7395
G1 Y10.9456
G1 X10.9456
G1 Y8.7395
G1 X9.8425
G1 Y8.6825
G1 X11.0026
G1 Y11.0026
G1 X8.6825
G1 Y8.6825
G1 X9.8425
G1 Y8.6255
G1 X8.6255
G1 Y11.0595
G1 X11.0595
G1 Y8.6255
G1 X9.8425
G1 Y8.5685
G1 X11.1165
G1 Y11.1165
G1 X8.5685
G1 Y8.5685
G1 X9.8425
G1 Y8.5115
G1 X8.5115
G1 Y11.1735
G1 X11.1735
G1 Y8.5115
G1 X9.8425
G1 Y8.4545
G1 X11.2305
G1 Y11.2305
G1 X8.4545
G1 Y8.4545
G1 X9.8425
G1 Y8.3975
G1 X8.3975
G1 Y11.2875
G1 X11.2875
G1 Y8.3975
G1 X9.8425
G1 Y8.3406
G1 X11.3445
G1 Y11.3445
G1 X8.3406
G1 Y8.3406
G1 X9.8425
G1 Y8.2836
G1 X8.2836
G1 Y11.4015
G1 X11.4015
G1 Y8.2836
G1 X9.8425
G1 Y8.2266
G1 X11.4585
G1 Y11.4585
G1 X8.2266
G1 Y8.2266
G1 X9.8425
G1 Y8.1696
G1 X8.1696
G1 Y11.5155
G1 X11.5155
G1 Y8.1696
G1 X9.8425
G1 Y8.1126
G1 X11.5724
G1 Y11.5724
G1 X8.1126
G1 Y8.1126
G1 X9.8425
G1 Y8.0556
G1 X8.0556
G1 Y11.6294
G1 X11.6294
G1 Y8.0556
G1 X9.8425
G1 Y7.9986
G1 X11.6864
G1 Y11.6864
G1 X7.9986
G1 Y7.9986
G1 X9.8425
G1 Y7.9416
G1 X7.9416
G1 Y11.7434
G1 X11.7434
G1 Y7.9416
G1 X9.8425
G1 Y7.8846
G1 X11.8004
G1 Y11.8004
G1 X7.8846
G1 Y7.8846
G1 X9.8425
G1 Y7.8277
G1 X7.8277
G1 Y11.8574
G1 X11.8574
G1 Y7.8277
G1 X9.8425
G1 Y7.7707
G1 X11.9144
G1 Y11.9144
G1 X7.7707
G1 Y7.7707
G1 X9.8425
G1 Y7.7137
G1 X7.7137
G1 Y11.9714
G1 X11.9714
G1 Y7.7137
G1 X9.8425
G1 Y7.6567
G1 X12.0283
G1 Y12.0283
G1 X7.6567
G1 Y7.6567
G1 X9.8425
G1 Y7.5997
G1 X7.5997
G1 Y12.0853
G1 X12.0853
G1 Y7.5997
G1 X9.8425
G1 Y7.5427
G1 X12.1423
G1 Y12.1423
G1 X7.5427
G1 Y7.5427
G1 X9.8425
G1 Y7.4857
G1 X7.4857
G1 Y12.1993
G1 X12.1993
G1 Y7.4857
G1 X9.8425
G1 Y7.4287
G1 X12.2563
G1 Y12.2563
G1 X7.4287
G1 Y7.4287
G1 X9.8425
G1 Y7.3718
G1 X7.3718
G1 Y12.3133
G1 X12.3133
G1 Y7.3718
G1 X9.8425
G1 Y7.3148
G1 X12.3703
G1 Y12.3703
G1 X7.3148
G1 Y7.3148
G1 X9.8425
G1 Y7.2578
G1 X7.2578
G1 Y12.4273
G1 X12.4273
G1 Y7.2578
G1 X9.8425
G1 Y7.2008
G1 X12.4843
G1 Y12.4843
G1 X7.2008
G1 Y7.2008
G1 X9.8425
G1 Y7.1438
G1 X7.1438
G1 Y12.5412
G1 X12.5412
G1 Y7.1438
G1 X9.8425
G1 Y7.0868
G1 X12.5982
G1 Y12.5982
G1 X7.0868
G1 Y7.0868
G1 X9.8425
G1 Y7.0298
G1 X7.0298
G1 Y12.6552
G1 X12.6552
G1 Y7.0298
G1 X9.8425
G1 Y6.9728
G1 X12.7122
G1 Y12.7122
G1 X6.9728
G1 Y6.9728
G1 X9.8425
G1 Y6.9158
G1 X6.9158
G1 Y12.7692
G1 X12.7692
G1 Y6.9158
G1 X9.8425
G1 Y6.8589
G1 X12.8262
G1 Y12.8262
G1 X6.8589
G1 Y6.8589
G1 X9.8425
G1 Y6.8019
G1 X6.8019
G1 Y12.8832
G1 X12.8832
G1 Y6.8019
G1 X9.8425
G1 Y6.7449
G1 X12.9402
G1 Y12.9402
G1 X6.7449
G1 Y6.7449
G1 X9.8425
G1 Y6.6879
G1 X6.6879
G1 Y12.9971
G1 X12.9971
G1 Y6.6879
G1 X9.8425
G1 Y6.6309
G1 X13.0541
G1 Y13.0541
G1 X6.6309
G1 Y6.6309
G1 X9.8425
G1 Y6.5739
G1 X6.5739
G1 Y13.1111
G1 X13.1111
G1 Y6.5739
G1 X9.8425
G1 Y6.5169
G1 X13.1681
G1 Y13.1681
G1 X6.5169
G1 Y6.5169
G1 X9.8425
G1 Y6.4599
G1 X6.4599
G1 Y13.2251
G1 X13.2251
G1 Y6.4599
G1 X9.8425
G1 Y6.4030
G1 X13.2821
G1 Y13.2821
G1 X6.4030
G1 Y6.4030
G1 X9.8425
G1 Y6.3460
G1 X6.3460
G1 Y13.3391
G1 X13.3391
G1 Y6.3460
G1 X9.8425
G1 Y6.2890
G1 X13.3961
G1 Y13.3961
G1 X6.2890
G1 Y6.2890
G1 X9.8425
G1 Y6.2320
G1 X6.2320
G1 Y13.4531
G1 X13.4531
G1 Y6.2320
G1 X9.8425
G1 Y6.1750
G1 X13.5100
G1 Y13.5100
G1 X6.1750
G1 Y6.1750
G1 X9.8425
G1 Y6.1180
G1 X6.1180
G1 Y13.5670
G1 X13.5670
G1 Y6.1180
G1 X9.8425
G1 Y6.0610
G1 X13.6240
G1 Y13.6240
G1 X6.0610
G1 Y6.0610
G1 X9.8425
G1 Y6.0040
G1 X6.0040
G1 Y13.6810
G1 X13.6810
G1 Y6.0040
G1 X9.8425
G1 Y5.9470
G1 X13.7380
G1 Y13.7380
G1 X5.9470
G1 Y5.9470
G1 X9.8425
G1 Y5.8901
G1 X5.8901
G1 Y13.7950
G1 X13.7950
G1 Y5.8901
G1 X9.8425
G1 Y5.8331
G1 X13.8520
G1 Y13.8520
G1 X5.8331
G1 Y5.8331
G1 X9.8425
G1 Y5.7761
G1 X5.7761
G1 Y13.9090
G1 X13.9090
G1 Y5.7761
G1 X9.8425
G1 Y5.7191
G1 X13.9659
G1 Y13.9659
G1 X5.7191
G1 Y5.7191
G1 X9.8425
G1 Y5.6621
G1 X5.6621
G1 Y14.0229
G1 X14.0229
G1 Y5.6621
G1 X9.8425
G1 Y5.6051
G1 X14.0799
G1 Y14.0799
G1 X5.6051
G1 Y5.6051
G1 X9.8425
G1 Y5.5481
G1 X5.5481
G1 Y14.1369
G1 X14.1369
G1 Y5.5481
G1 X9.8425
G1 Y5.4911
G1 X14.1939
G1 Y14.1939
G1 X5.4911
G1 Y5.4911
G1 X9.8425
G1 Y5.4342
G1 X5.4342
G1 Y14.2509
G1 X14.2509
G1 Y5.4342
G1 X9.8425
G1 Y5.3772
G1 X14.3079
G1 Y14.3079
G1 X5.3772
G1 Y5.3772
G1 X9.8425
G1 Y5.3202
G1 X5.3202
G1 Y14.3649
G1 X14.3649
G1 Y5.3202
G1 X9.8425
G1 Y5.2632
G1 X14.4219
G1 Y14.4219
G1 X5.2632
G1 Y5.2632
G1 X9.8425
G1 Y5.2062
G1 X5.2062
G1 Y14.4788
G1 X14.4788
G1 Y5.2062
G1 X9.8425
G1 Y5.1492
G1 X14.5358
G1 Y14.5358
G1 X5.1492
G1 Y5.1492
G1 X9.8425
G1 Y5.0922
G1 X5.0922
G1 Y14.5928
G1 X14.5928
G1 Y5.0922
G1 X9.8425
G1 Y5.0352
G1 X14.6498
G1 Y14.6498
G1 X5.0352
G1 Y5.0352
G1 X9.8425
G1 Y5.0770 Z0.0024
G1 Z0.0260 F39.4
G0 Z0.2362
G0 X9.8425 Y5.0770
G0 X0.0000 Y0.0000
M30
I think I need new belt for this
I just drawed a square into a square, profilng for the big and pocketing for the small one. The bit I selected is a 6mm one, setted at 6mm as the CMT technician suggested me (I’ll try tomorrow to measure a channel, too late now)
Design are in mm, post processor is the only one currently available from MecSoft site for the XCARVE
X-Carve GRBL.spm (19,7 KB)
I can also run Mach3mm but then the machine does not return to zero
Have ‘tried’ it just one time when I forgot to switch the post, but as the machine hasn’t returned to zero I have redone the work.
Where I have to add the command?
This is the actual cut I tried today. Below is the post with the 6mm bit setted as 6mm. Same post as above.
Senzatitolo_2 1_2 Axis Profiling.nc (4,3 KB)I see, very little differences. What do you suggest me? Apart to lower the tension of the belt and import the measurement from the channel cut.
Ok. No post swapping then?
Got it. Tomorrow I’ll lower the belt tension if I can then re-calibrate and make some test in both programs
Maybe a big guess but…could be UGCS the problem? I’m having some small trouble with it in the last month
I am reading the Gcode wrong.
