Machine Slow on Curves

[swisscheese]

You can make CamBam curve fit a polyline using the "edit/polyline/arc fit" menu option.

E.g.



You are prompted for the tolerance so you can choose the tradeoff between accuracy and minimising the number of curves.

CamBam has a very good forum for asking these sort of questions. It is also deceptively simple and it's worth (never thought I'd say this) reading the manual to find out all the things it can do.

Hi,

Its not that i don't have an arc in cambam that is the problem. I do. The problem is when cambam creates the gcode it turns the arc into a series of lots of small straight lines. Im then having a problem with linuxCNC not giving a smooth output to the machine.

What i find weird in cambam is, you go to the postprocessor for linuxcnc, you then go down to 'Arc Output' and there are three options to choose from
normal
convert to lines
Helix convert to lines

So i assume normal would mean it makes a curve using lots of small radius. This isnt the case though