Fadal 60/30 w/large Arc

[dcalp]

Has anyone had a problem getting a large arc ,653", to run properly? All I get is a samll 1/2" arc then a straight line pass to the other end of the 30" long cut and then the same small arc on the other end. The code is correct and I can't figure out what is going on. Thanks in advance for any help!!

[David Ferguson]

I don't know the solution, but I'm sure folks will want to know what version of software your 88HS control has? Also, you might post a snippet of your code so we can see what format G2/G3 you are using and what parameters you are supplying (I'll be glad to try and duplicate this on my 3016 just to see what happens).

Assuming it's a bug in the control that you can't upgrade -- can you use a CAM program to generate the necessary G-code as line segments or large radius arc's that the machine will do?

[Neal]

dcalp--
The arc limits for the Fadal control when using the G2/G3 codes are 399.99" without cutter compensation and 99.99" when using cutter compensation. To cut any larger arc you must use the spline point approach.

[dcalp]

Neal, thanks for that. I only program (CAM) and the "operators" didn't know!! So, if I make a segmented spline curve it should work??

[Neal]

dcalp--
Yes, the G1 segmented coding will work. Tell your programmers to keep the resolution very tight or you may see some faceting. Also make so the G8 is in effect.

Neal