Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: kencor1 on May 01, 2009, 10:55:26 PM
-
I am just starting out with lathe. I have bobcad 23 lathe cam. Is there is anyone out there that could post a bobcad lathe file, for output to mach so I can learn from it. I have created a test file in bobcad and posted it in a mach post but when I load into machturn I can see some of the tool path but where ever there are arcs the screen has a bunch of circles. I am not sure of what I have setup wrong. My code is outputting I,K for arcs, I also tried with r arcs, same thing. Can anyone please point me in the right direction to get this figured out. I have in closed a copy of the g-code.
Thanks
Tom
-
Torn,
Your getting I & K instead of I & J ( mill x & y ) because "k" is associated with the z axis of the lathe in the code. For those goffy, we call them crop circles, go to config>ports & pins>turn options and check or uncheck
"Reversed Arc's in Front Post".
RICH
I looked at you file in Turn and i had to change in config>general logic> check IJ MODE to INC and Distance Mode to Absolute.
Additionaly when you load the file there are some G97 codes which do not have a S500 value ( or whatever - so i just added it ) for the spindle speed. One last thing are a few moves which i point to in the attached pic of the profile. I don't know if that is what you actualy
wanted to do but the moves look a little out of place.
I am not familar or use bobcad so can't be of any help there. There others in here who do use it though and may remark.
Hope this helps,
RICH
-
I was wondering if someone can explain what changing the IJ Mode from Inc. to Absolute does in comparision to unchecking the "Reverse Arc's In Front Post".
I was getting the crop circles too and swithced from Inc. to Absolute, but being anal I want to know what the difference is? Basically I don't know what "reversed arc's in front post" is? Thanks.
-
Cartierusm,
In a few days there will be a tutorial on Arc Programing for the Lathe posted in the Member's Doc's section which will answer your question's.
RICH
-
Cartierusm,;
Have a look at this tutorial. Here is the link:
http://www.machsupport.com/forum/index.php/topic,11932.msg76353.html#msg76353
Let me know if it does any good for you.
RICH
-
I solved the problem buy changing the setting but thanks, I'll read to get a better understanding.