my cnc

[SPIKE]

hi guys i really hope you can help me with this one.
i keep on trying to mill a sign or an 3d object but i keep having the same issue when ever i select my home position on my material this being wood when i load the file in to universal gcode sender pus run or send my machine starts running and mooving to its first position as it should but every time it plunges deep as far as it can go in to the wood it cant moove because of how deep its gone and burns the wood , no matter what i do it happens all the time so HEELLLLP! please

[Maurizio]

Sounds like you need to take multiple passes. This will be dependant on your CAM software. Also CAM software often has a simulated preview that is worth watching before hitting the send as it can show these things up.

[Clive S]

hi guys i really hope you can help me with this one.
i keep on trying to mill a sign or an 3d object but i keep having the same issue when ever i select my home position on my material this being wood when i load the file in to universal gcode sender pus run or send my machine starts running and mooving to its first position as it should but every time it plunges deep as far as it can go in to the wood it cant moove because of how deep its gone and burns the wood , no matter what i do it happens all the time so HEELLLLP! please

Due to covid19 the crystal ball has lost it sheen.

So how about giving some specs about the machine, what controller and the top few lines of the gcode.

It would also help with a couple of pics would be nice as well

[SPIKE]

Thank you for your reply the cam software im using is fusion 360 and when i run a sim it runs normallyi dont get no errors and it starts of as it should do.
Best regards Colin

[Clive S]

Thank you for your reply the cam software im using is fusion 360 and when i run a sim it runs normallyi dont get no errors and it starts of as it should do.
Best regards Colin

Fusion 360 is your CAD and cam software the controller could be mach3 or something else and what does your machine look like and how about posting your g code.

[SPIKE]

Thanks for your reply.
i use fusion 360 cam software then i send the g-code to universal g-code sender i also have candle controller which cam with my grbl cnc diy 3018 pro router laser machine.
Here are 2 images of my setup you can clearly see the plunge and burn mark from where it tries to travel along the x axis. i seem to have some issues let me know what you need and i will try to end it anoother way
All the best Colin
Hereis part of the gcode

(1001)
(T3 D=3. CR=2.5 - ZMIN=-15.249 - BULLNOSE END MILL)
G21
G40
G49
G80
G90
(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.)

(POCKET1)
M5
T3 M6
S10000 M3
G54
G0 B0. C0.
G17
G0 X46.236 Y22.824 Z12.
G94 G1 Z3.289 F250.
S750
G2 X45.08 Y23.508 Z3.039 R0.95
X45.764 Y24.664 Z2.789 R0.95
X46.92 Y23.981 Z2.539 R0.95
X46.236 Y22.824 Z2.289 R0.95
X45.08 Y23.508 Z2.039 R0.95
X45.764 Y24.664 Z1.789 R0.95
X46.92 Y23.981 Z1.539 R0.95
X46.236 Y22.824 Z1.289 R0.95
X45.08 Y23.508 Z1.039 R0.95
X45.764 Y24.664 Z0.789 R0.95
X46.92 Y23.981 Z0.539 R0.95
X46.236 Y22.824 Z0.289 R0.95
X45.08 Y23.508 Z0.039 R0.95
X45.764 Y24.664 Z-0.211 R0.95
X46.92 Y23.981 Z-0.461 R0.95
X46.236 Y22.824 Z-0.711 R0.95
X46. Y22.794 Z-0.751 R0.95
S10000
G1 X2.023 F500.
X2.022
X1.981 Y22.795
X1.98
X1.939 Y22.797
X1.937 Y22.798
X1.896 Y22.801
X1.895
X1.853 Y22.805
X1.852 Y22.806
X1.811 Y22.811
X1.81
X1.768 Y22.818
X1.767
X1.726 Y22.826
X1.724 Y22.827
X1.683 Y22.836
X1.682
X1.641 Y22.847
X1.639
X1.598 Y22.859
X1.597 Y22.86
X1.556 Y22.873
X1.555
X1.537 Y22.879
X1.536 Y22.88
X1.513 Y22.888
X1.512
X1.471 Y22.904
X1.469 Y22.905
X1.43 Y22.922
X1.428
X1.386 Y22.942
X1.384 Y22.943
X1.343 Y22.963
X1.342 Y22.964
X1.301 Y22.986
X1.299 Y22.987
X1.265 Y23.007
X1.264
X1.258 Y23.011
X1.257 Y23.012
X1.215 Y23.038
X1.214
X1.198 Y23.049
X1.197 Y23.05
X1.173 Y23.066
X1.172 Y23.067
X1.138 Y23.092
X1.137
X1.13 Y23.098
X1.129
X1.088 Y23.131
X1.087 Y23.132
X1.083 Y23.134
Y23.135
X1.045 Y23.167
X1.044 Y23.168
X1.034 Y23.177
X1.033 Y23.178
X1.003 Y23.206
X1.002
X0.988 Y23.219
X0.987 Y23.22
X0.96 Y23.248
X0.959
X0.946 Y23.262
X0.945 Y23.263
X0.917 Y23.293
Y23.294
X0.907 Y23.304
Y23.305
X0.875 Y23.343
X0.874
X0.871 Y23.347
Y23.348
X0.838 Y23.39
X0.837
X0.832 Y23.397
Y23.398
X0.807 Y23.432
X0.806 Y23.433
X0.79 Y23.457
X0.789 Y23.458
X0.778 Y23.475
Y23.476
X0.751 Y23.517
Y23.518
X0.747 Y23.524
Y23.525
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X0.726 Y23.561
X0.705 Y23.6
X0.704 Y23.601
X0.682 Y23.645
Y23.646
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Y23.773
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Y23.797
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Y23.816
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Y23.859
X0.587 Y23.9
Y23.901
X0.577 Y23.939
Y23.94
X0.567 Y23.985
X0.566 Y23.986
X0.558 Y24.027
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X0.551 Y24.07
Y24.071
X0.545 Y24.112
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Y24.156
X0.537 Y24.198
Y24.199
X0.535 Y24.24
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Y24.284
Y154.716
Y154.717
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Y154.802
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Y154.845
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Y154.973
X0.566 Y155.014
X0.567 Y155.015
X0.576 Y155.056
Y155.058
X0.587 Y155.099
Y155.1
X0.599 Y155.141
Y155.143
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Y155.185
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X0.628 Y155.227
Y155.228
X0.644 Y155.269
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X0.662 Y155.31
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Y155.355
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X0.726 Y155.439
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Y155.476
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Y155.483
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Y155.525
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X0.832 Y155.602
Y155.603
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X0.838
X0.871 Y155.652
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X0.875
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Y155.696
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Y155.707
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X0.988 Y155.781
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X1.045 Y155.833
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Y155.866
X1.087 Y155.868
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X1.129 Y155.902
X1.13
X1.137 Y155.908
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X1.172 Y155.933
X1.173 Y155.934
X1.197 Y155.95
X1.198 Y155.951
X1.214 Y155.962
X1.215
X1.257 Y155.988
X1.258 Y155.989
X1.264 Y155.993
X1.265
X1.299 Y156.013
X1.301 Y156.014
X1.34 Y156.035
X1.341 Y156.036
X1.384 Y156.057
X1.386 Y156.058
X1.427 Y156.077
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X1.469 Y156.095
X1.471 Y156.096
X1.512 Y156.112
X1.513
X1.536 Y156.12
X1.537 Y156.121
X1.555 Y156.127
X1.556
X1.597 Y156.14
X1.598 Y156.141
X1.639 Y156.153
X1.641
X1.679 Y156.163
X1.68
X1.724 Y156.173
X1.726 Y156.174
X1.767 Y156.182
X1.768
X1.81 Y156.189
X1.811
X1.852 Y156.194
X1.853 Y156.195
X1.895 Y156.199
X1.896
X1.937 Y156.202
X1.939 Y156.203
X1.98 Y156.205
X1.981
X2.022 Y156.206
X2.023
X89.977
X89.978
X90.019 Y156.205
X90.02
X90.061 Y156.203
X90.063 Y156.202
X90.104 Y156.199
X90.105
X90.147 Y156.195
X90.148 Y156.194
X90.189 Y156.189
X90.19
X90.232 Y156.182
X90.233
X90.274 Y156.174
X90.276 Y156.173
X90.317 Y156.164
X90.318
X90.359 Y156.153
X90.361
X90.402 Y156.141
X90.403 Y156.14
X90.444 Y156.127
X90.445
X90.463 Y156.121
X90.464 Y156.12
X90.487 Y156.112
X90.488
X90.529 Y156.096
X90.531 Y156.095
X90.57 Y156.078
X90.572
X90.614 Y156.058
X90.616 Y156.057
X90.657 Y156.037
X90.658 Y156.036
X90.699 Y156.014
X90.701 Y156.013
X90.735 Y155.993
X90.736
X90.742 Y155.989

[SPIKE]

Thanks for your reply.
i use fusion 360 cam software then i send the g-code to universal g-code sender i also have candle controller which cam with my grbl cnc diy 3018 pro router laser machine.
Here are 2 images of my setup you can clearly see the plunge and burn mark from where it tries to travel along the x axis. Click image for larger version. Name: My CNC 2.jpg Views: 2 Size: 165.7 KB ID: 29466 i seem to have some issues let me know what you need and i will try to end it anoother way
All the best Colin
Hereis part of the gcode

(1001)
(T3 D=3. CR=2.5 - ZMIN=-15.249 - BULLNOSE END MILL)
G21
G40
G49
G80
G90
(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.)

(POCKET1)
M5
T3 M6
S10000 M3
G54
G0 B0. C0.
G17
G0 X46.236 Y22.824 Z12.
G94 G1 Z3.289 F250.
S750
G2 X45.08 Y23.508 Z3.039 R0.95
X45.764 Y24.664 Z2.789 R0.95
X46.92 Y23.981 Z2.539 R0.95
X46.236 Y22.824 Z2.289 R0.95
X45.08 Y23.508 Z2.039 R0.95
X45.764 Y24.664 Z1.789 R0.95
X46.92 Y23.981 Z1.539 R0.95
X46.236 Y22.824 Z1.289 R0.95
X45.08 Y23.508 Z1.039 R0.95
X45.764 Y24.664 Z0.789 R0.95
X46.92 Y23.981 Z0.539 R0.95
X46.236 Y22.824 Z0.289 R0.95
X45.08 Y23.508 Z0.039 R0.95
X45.764 Y24.664 Z-0.211 R0.95
X46.92 Y23.981 Z-0.461 R0.95
X46.236 Y22.824 Z-0.711 R0.95
X46. Y22.794 Z-0.751 R0.95
S10000
G1 X2.023 F500.
X2.022
X1.981 Y22.795
X1.98
X1.939 Y22.797
X1.937 Y22.798
X1.896 Y22.801
X1.895
X1.853 Y22.805
X1.852 Y22.806
X1.811 Y22.811
X1.81
X1.768 Y22.818
X1.767
X1.726 Y22.826
X1.724 Y22.827
X1.683 Y22.836
X1.682
X1.641 Y22.847
X1.639
X1.598 Y22.859
X1.597 Y22.86
X1.556 Y22.873
X1.555
X1.537 Y22.879
X1.536 Y22.88
X1.513 Y22.888
X1.512
X1.471 Y22.904
X1.469 Y22.905
X1.43 Y22.922
X1.428
X1.386 Y22.942
X1.384 Y22.943
X1.343 Y22.963
X1.342 Y22.964
X1.301 Y22.986
X1.299 Y22.987
X1.265 Y23.007
X1.264
X1.258 Y23.011
X1.257 Y23.012
X1.215 Y23.038
X1.214
X1.198 Y23.049
X1.197 Y23.05
X1.173 Y23.066
X1.172 Y23.067
X1.138 Y23.092
X1.137
X1.13 Y23.098
X1.129
X1.088 Y23.131
X1.087 Y23.132
X1.083 Y23.134
Y23.135
X1.045 Y23.167
X1.044 Y23.168
X1.034 Y23.177
X1.033 Y23.178
X1.003 Y23.206
X1.002
X0.988 Y23.219
X0.987 Y23.22
X0.96 Y23.248
X0.959
X0.946 Y23.262
X0.945 Y23.263
X0.917 Y23.293
Y23.294
X0.907 Y23.304
Y23.305
X0.875 Y23.343
X0.874
X0.871 Y23.347
Y23.348
X0.838 Y23.39
X0.837
X0.832 Y23.397
Y23.398
X0.807 Y23.432
X0.806 Y23.433
X0.79 Y23.457
X0.789 Y23.458
X0.778 Y23.475
Y23.476
X0.751 Y23.517
Y23.518
X0.747 Y23.524
Y23.525
X0.727 Y23.56
X0.726 Y23.561
X0.705 Y23.6
X0.704 Y23.601
X0.682 Y23.645
Y23.646
X0.663 Y23.687
X0.662 Y23.688
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X0.644 Y23.731
X0.628 Y23.772
Y23.773
X0.619 Y23.796
Y23.797
X0.613 Y23.815
Y23.816
X0.599 Y23.857
Y23.859
X0.587 Y23.9
Y23.901
X0.577 Y23.939
Y23.94
X0.567 Y23.985
X0.566 Y23.986
X0.558 Y24.027
Y24.029
X0.551 Y24.07
Y24.071
X0.545 Y24.112
Y24.114
X0.541 Y24.155
Y24.156
X0.537 Y24.198
Y24.199
X0.535 Y24.24
Y24.242
X0.534 Y24.283
Y24.284
Y154.716
Y154.717
X0.535 Y154.758
Y154.76
X0.537 Y154.801
Y154.802
X0.541 Y154.844
Y154.845
X0.545 Y154.886
Y154.888
X0.551 Y154.929
Y154.93
X0.558 Y154.971
Y154.973
X0.566 Y155.014
X0.567 Y155.015
X0.576 Y155.056
Y155.058
X0.587 Y155.099
Y155.1
X0.599 Y155.141
Y155.143
X0.613 Y155.184
Y155.185
X0.619 Y155.203
Y155.204
X0.628 Y155.227
Y155.228
X0.644 Y155.269
X0.645 Y155.27
X0.662 Y155.31
Y155.312
X0.682 Y155.354
Y155.355
X0.703 Y155.397
X0.704 Y155.398
X0.726 Y155.439
X0.727 Y155.441
X0.747 Y155.475
Y155.476
X0.751 Y155.482
Y155.483
X0.778 Y155.524

[Clive S]

Ok
Where and how do you touch off the part ie. at the bottom or the top and are you doing the same in fusion360 you generally touch off at the top off the part and that should be Z0.

Also when you jog the Z axis down dose the DRO go more -ve or +ve ie. generally the Z should go -ve when going down.

I have never used grbl.

Also in the code you are using a ball nose cutter for a pocket you should be using an endmill . This is nothing to do with your problem though

[SPIKE]

T thanks again Clive I hope i dont get to be a pain with this. where you see thhe burn mark on the wood im bringing z to within a paper thickness for my zero i dont quite understand about touch off and the -ve when going down sorry i am disabled on alot of meds which causes me very bad memory so i have to wright alot down, my x is along the length of the material and y is the width, sometimes though it seems as if the z axis travels too far because when it lifts out of the wood it trvels almost to the top of its wall.
Kind regards. Colin

[Clive S]

T thanks again Clive I hope i dont get to be a pain with this. where you see thhe burn mark on the wood im bringing z to within a paper thickness for my zero i dont quite understand about touch off and the -ve when going down sorry i am disabled on alot of meds which causes me very bad memory so i have to wright alot down, my x is along the length of the material and y is the width, sometimes though it seems as if the z axis travels too far because when it lifts out of the wood it trvels almost to the top of its wall.
Kind regards. Colin

Colin
I am not familiar with your controller. Touch off means that you jog down to the top of the part and then press the touch off button this should then set the DRO (readout) to zero.

Does the controller have a DRO . Can you post a picture of the controller?

Perhaps somebody can chime in to help