It looks like the G code is OK, at least nothing jumps out at me. Could the tool bit have pulled out of the collet? Or maybe the Z axis drifted down?
New boy alert! Got a weird issue I wanted to run past folk please.
Just ran a prototype part, first op (adaptive clearing went well), 2nd op was a 0.1mm face op... which actually came in an hammered a approx 3mm depth of cut, scrapping the part and nearly giving me a heart attack.
I think the G code is ok which means fusion and the post processor was fine, but as I am rubbish at reading g code I wanted to get advice from more experienced heads so I can rule out Fusion an dthe post processor
z0 was stock top, which was 0.1 from model top. I'm running a 10mm endmill into alu. This is the exerpt of the face op
(FACE2)
N2559 G0 X86.5 Y3.675
N2560 Z15
N2561 Z5
N2562 G1 Z0.9 F400
N2563 G18 G3 X85.5 Z-0.1 I-1
N2564 G1 X80
N2565 X0
N2566 G3 X-1 Z0.9 K1
N2567 G0 Z5
N2568 G1 X86.5 Y12.255 F4000
N2569 Z0.9 F400
N2570 G3 X85.5 Z-0.1 I-1
N2571 G1 X80
N2572 X0
N2573 G3 X-1 Z0.9 K1
N2574 G0 Z5
N2575 G1 X86.5 Y20.835 F4000
N2576 Z0.9 F400
N2577 G3 X85.5 Z-0.1 I-1
N2578 G1 X80
N2579 X0
N2580 G3 X-1 Z0.9 K1
N2581 G0 Z5
N2582 G1 X86.5 Y29.415 F4000
N2583 Z0.9 F400
N2584 G3 X85.5 Z-0.1 I-1
N2585 G1 X80
N2586 X0
N2587 G3 X-1 Z0.9 K1
N2588 G0 Z5
N2589 G1 X86.5 Y37.995 F4000
N2590 Z0.9 F400
N2591 G3 X85.5 Z-0.1 I-1
N2592 G1 X80
N2593 X0
N2594 G3 X-1 Z0.9 K1
N2595 G0 Z5
N2596 G1 X86.5 Y46.575 F4000
N2597 Z0.9 F400
N2598 G3 X85.5 Z-0.1 I-1
N2599 G1 X80
N2600 X0
N2601 G3 X-1 Z0.9 K1
N2602 G0 Z5
N2603 G1 X86.5 Y55.155 F4000
N2604 Z0.9 F400
N2605 G3 X85.5 Z-0.1 I-1
N2606 G1 X80
N2607 X0
N2608 G3 X-1 Z0.9 K1
N2609 G0 Z15
N2610 G17
I'll add a photo of the physical part.
Would welcome your diagnosis as my suspicion is currently on the controller/machine.
Thanks folks!
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Last edited by Dangle_kt; 02-26-2017 at 04:40 PM.
It looks like the G code is OK, at least nothing jumps out at me. Could the tool bit have pulled out of the collet? Or maybe the Z axis drifted down?
Thanks Jim - I will check the tool pullout, that sounds very likely as the adaptive it was doing before hand was pretty heavy for my little mill, and the floor of it was progressivly getting deeper on every pass which you can just make out on the photo.
I'll check tonight.
Cheers!
You were right - the tool had been pulled out a little. I will clean them up, and torque properly in future.
Mactec54
That is the lead in lead out defaulted in HSMworks (Fusion 360's integrated CAM program). Works just fine.
"""""""The G code does not look good at all, the Z axes moves should be on there own line, why is he using a G18
For what he milling it is a G17 plane
The program is incorrect for what he was wanting to cut
G18 G3X86.5Z-0.1I-1""""""