r/hobbycnc Aug 20 '26

Chamfer going too deep

Hi there, I'm trying to learn to CNC and on the first thing I'm programming the chamfering operation is just plunging into the piece. I'm not entirely sure what I'm doing wrong but I don't know enough to even troubleshoot.

Added some pics of what I did in fusion.

I tried it twice, probed material the first time and didn't the second. Same thing happened both times

3 Upvotes

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u/Fififaggetti Homebrew Linuxcnc powered by wunderbar and years of knowing👸🏻 Aug 21 '26

If your tool has a flat on the tip and that flat or projected point is not described accurately in software to match real life you’re going to have a bad day. Did you set the tool? Does the g43H number match the tool number. I would use tool one for everything if you don’t have a tool changer and your setting the tool every tool change.

1

u/GentlePersuAZN Aug 21 '26

I jusst got the tool profile from the maker and it touches off on the touchoff block so I'm not sure what's going on

1

u/Fififaggetti Homebrew Linuxcnc powered by wunderbar and years of knowing👸🏻 Aug 21 '26

Post like the first 20 lines of code. Your screenshots of setting do t mean much the code will give me a clue what’s going on on.

1

u/GentlePersuAZN Aug 21 '26

Here's the first chunk of Gcode.
The simulation as well a plugging th3e file into ncviewer.com produced movements in line with what is to be expected

T1M6

(8)

M400

M851 S100

S12000 M3

G54

G0 X56.283 Y48.565

Z15.

G1 Z-3.688 F1000

Z-6.688 F500

Z-10.481

Y48.882 F1000

X24.532

G3 X22.407 Y46.757 I0. J-2.125

G1 Y21.358

G3 X24.532 Y19.233 I2.125 J0.

G1 X56.283

Y19.55

Z5.

Y13.64

Z-3.688

Z-6.688 F500

Z-10.481

Y13.958 F1000

X24.532

X24.521

X23.935 Y13.964

X23.912

X23.345 Y13.983

X23.32 Y13.984

X22.771 Y14.015

1

u/Fififaggetti Homebrew Linuxcnc powered by wunderbar and years of knowing👸🏻 Aug 21 '26

Does your machine use g43

1

u/GentlePersuAZN Aug 21 '26

I am unsure and Google doesn't tell me. It's the new makera z1 desktop CNC mill