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Themenstarter
Hello,
I'm quite frustrated... I try to "simulate" the carving of a simple 20mmx20mmx10mm (with 5mm rounded corners) pocket with LinuxCNC. I've produced the gcode by using g-simple:
Below what I see in the "Backplot" windiw when I run the gcode in LinuxCNC:
As you can see, at the end of every straight path the router produces a curve (!). It doesn't stop and then goes up like it should do.
:ohmy:
I'm not actually milling, I'm just observing the Stepcraft router going around with no piece on the worktable before going with the real milling.
I've double checked my Stepcraft configuration:
max axis velocity = 30 mm/s
max acceleration = 40 m/s^2
The tool has
Feed rate = 600 mm/minute (F600 instruction in the gcode)
Plunge rate = 100 mm/minute (F100 instruction in the gcode)
Homing and positioning (manually or via gcode) are perfect, the machine seems working like a charm. So... what's going on?
Obviously I could use a lower feed rate (let's say F300 or 300 mm/min), but even so I can note little curves and no straight lines in the Backplot window. With lower values I will go in pension before the milling ends...
🙁
Any clue?
I'm missing something?
SC300 + Spindle HF500 + Portalerhöhung + LinuxCNC + gsimple
Veröffentlicht : 20/03/2015 9:00 pm
Themenstarter
Gefunden! :woohoo:
It's 'cause no G64 command was included in my gcode!
G64 states the maximum tolerance allowed in respect of the theoretic path. For example:
G64 P0.01 = The max allowed distance from the ideal path is 0.01 millimeters.
It's a good practice to add the command in the preamble of every gcode program (I was not aware of that, and G-simple doesn't put it as defaul behaviour).
Here below, the same pocket by including "G64 P0.01":
:woohoo: :woohoo: :woohoo:
SC300 + Spindle HF500 + Portalerhöhung + LinuxCNC + gsimple
Veröffentlicht : 20/03/2015 9:59 pm
