editing post to output R instead of I and J

[RashestHippo]

I'd like to have my post for my techno cnc router output as R instead of I and J. I have looked but i am uncertain about what exactly to change. could someone please help me, it would be appreciated. 

[Steinwerks]

In your post processing dialogue is there an option called useRadius? Set that to Yes and you're set.

[RashestHippo]

sorry, but I do not see "useRadius" 

[Steinwerks]

Alright, which post processor are you using? I searched the post library (found here: http://cam.autodesk.com/posts/ ) but did not come up with a techno cnc specific post. If you are using a custom post could you attach it here?

[RashestHippo]

I got the post from http://cam.autodesk.com/partners/#shop-maker > Techno CNC.  I have attached it for your convenience. I appreciate the help 

[Anonymous]

Hello,

I have seen something goofy many years ago with posting with R instead IJ codes.  The arc was not correct and when I change the post back to I and Js the arc was correct.  I was not using Fusion and it was a 1994 Haas.  Just my experience so I don't use Rs for cutting radii anymore.

My 2 cents  🙂

[daniel_lyall]

@RashestHippo your post does not have Radius in it at all, you will need it added 

if you do a search here you may find what you need http://forums.autodesk.com/t5/inventor-hsm-hsmworks-cam/ct-p/213 

[RashestHippo]

"The core node you are trying to access was not found, it may have been deleted"

[Steinwerks]

@RashestHippo

I have been tinkering with this for the past 20 minutes and as best I can tell the useRadius feature is built on a lot of other sections in the post processor that are missing from the official release provided for the Techno CNC control.

My question then becomes this: why do you want the radius output instead of IJK? If the machine isn't running as well as you'd expect or desire, perhaps it is another issue that can be addressed. If it's a code-readability issue or just a formatting preference, perhaps bringing it to the attention of the developers would be a better solution so they can change the post properly and support it in the future. I can't be sure of why it's not included but there may be a reason.

[Steinwerks]

@RashestHippo

I believe I have a working post with R values. I have added the useRadius selection, off by default, to the Techno post processor and backplotting shows the same toolpaths when enabled as disabled (and against the original post).

As usual, test with extreme caution!

[daniel_lyall]

sorted 

[daniel_lyall]

what ???

[Steinwerks]

@daniel_lyall

Considering the post he provided is not set up for tool orientation then there would be no I or J values to replace with regard to a rotary axis. The post simply errors out.

NVM looks like you saw that.

@RashestHippo's reply was based on the fact that your link to the post processor subforum does not work for some reason:

Going to test this one: http://forums.autodesk.com/t5/hsm-post-processor-forum/bd-p/218

[daniel_lyall]

I realized after I posted I had a look for that and it was missing

[RashestHippo]

i really really appreciate the help, I am attempting to match what is already working from our other software on our machine. Mozaik and mastercam are outputting radius. 

[daniel_lyall]

If you change the use radius as it is in the pick it puts out R not I and J set it to no it should put out a i and J

[Steinwerks]

@RashestHippo

Did the modified post work for you?

[RashestHippo]

I am hoping to try on Monday. I've been so busy that I have no time to tinker. I posted the exact same program for a 12" square one with the original post and one with the radius option on. once again, I appreciate the help and I will keep you posted 

[RashestHippo]

I didn't actually cut anything but here is what the machines previewer showed. 

I J 

and this is the new post that outputs R