Code originally by jepler, converted to gcode by KennethLerman (lerman), fixed by jepler.

This code will machine an approximation to a ellipse.

(#1=xc #2=yc #3=xr #4=yr #5=subdiv #5=depth #7=rapid ht) o1000 sub (#10 = theta) (#11 = i) (#12 = x) (#13 = y) #14 = 360 #11 = 1 g0 x[#1+#3] y#2 g0 z#6 o1001 while [#11 LE #5] #10 = [#14 * #11 / #5] #12 = [#1 + [#3 * cos[#10]]] #13 = [#2 + [#4 * sin[#10]]] g1 x#12 y#13 #11 = [#11 + 1] o1001 endwhile g0 z#7 o1000 endsub (call it like this) f10 o1000 call [0] [0] [1] [2] [200] [-1] [2] m2