Machsupport Forum

G-Code, CAD, and CAM => G-Code, CAD, and CAM discussions => Topic started by: Nbzinhoxxd on September 16, 2021, 07:56:40 AM

Title: Circles
Post by: Nbzinhoxxd on September 16, 2021, 07:56:40 AM
Hello! I'm having a problem that i don't know where it comes from, i using partmaster cad and cam to do my g code and used many post processor to see if the problem is the ppr but after 5 tests and test my program manually writed i just don't know what is the problem, can anyone help me?

The problem is i want to do some radius but my program keeps making circles... sorry for my english, it's not my motherlang
Title: Re: Circles
Post by: Tweakie.CNC on September 16, 2021, 08:03:06 AM
In Config. / General Config.  change the IJ Mode then regen. the toolpath window.

Tweakie.
Title: Re: Circles
Post by: Nbzinhoxxd on September 16, 2021, 08:14:17 AM
I do that, changed from absolute and incremental but nothing changes, i upload what i want to do with that program
Title: Re: Circles
Post by: Graham Waterworth on September 16, 2021, 05:50:00 PM
Check this setting in Ports & Pins
Title: Re: Circles
Post by: Nbzinhoxxd on September 17, 2021, 07:01:28 AM
Ok, i changed the setting to diameter and get no differences but if i turn off reverse arc option, i'm getting this in my program:

But i want to do the arc to the other side but idk how to setup this to get what i want.
Title: Re: Circles
Post by: Graham Waterworth on September 17, 2021, 04:16:38 PM
I don't think its a Mach3/4 fault.

My Fanuc 18i controlled lathe shows the same problem.

What did you use to create the code.  A Fanuc 6 post processor will get you runnable code on most CAM systems.

Standard 2 axis lathes should work in diameter mode and use incremental I and K or R in G02 and G03 commands.

Title: Re: Circles
Post by: stevehuck on September 17, 2021, 07:25:41 PM
Try swapping out your g02's and g03's. I edited my post processor to swap the two commands and everything is working for me now. It started for me when I upgraded from mach3 to mach4.