hello friends, glad to be part of this.
i´d like to ask for your help, i have a few problems and questions that i like to ask.
first, when im cutting a circle or half of a circle, in some part of the circunference, the machine cuttin in straight line.
second, how can i set the rpm of my spindle to max? the chilipeppr command allow me just to use 8000, my spindle can handle 12000.
when i use skectucam and i set de rpm in 10000 or more, i have to correct the gcode because doesnt start when i load into the chilipeppr, only if i correct to 8000, works.
cheers guys
You need to set you config file for tiny G to change your rpm max
Also look at your gcode file make sure it’s not Calling for G50 8000 toward the start of the file… this can be checked with notepad or any other text editor
@Felipe_de_la_jara if you could copy all your tinyG config file settings and put them on a cloud service like Google drive/onedrive/ect… I would be glad to take a look at it and compare it to my settings for the Pwm of the ESC that controls the spindle
Hello Alex. Thanks a lot. As as i can ill send it to you. Cheers
Straight lines in circle can be one of two things. When the Gcode was generated it used line segments to approximate a circle and it had a low quality setting. This would make the whole circle appear choppy but more-so in the quadrants. Some G-code generators will actually use G2/G3 commands for arcs and the interpreter then converts these commands into movement sections, usually with a higher and more consistent quality. Solution to this problem is to ensure your code generator has appropriate values for path deviation.
The other option is backlash. backlash in your X, Y, or both will cause “flats” on circles due to the change in direction when moving from one quadrant to the next. The solution is then to find a way to remove the backlash mechanically or measure your backlash and its repeatability and hope your software or controller has setting for backlash compensation. 