Sign in to follow this  
Adam prog

Force head and table rotation

Recommended Posts

I'm working on a part that's a bit bigger than machine's travels so I must do one side in half and then turn the table by 180deg to finish the other half. I'd like to try some more efficient way especially for face roughing, something what looks like if you turn on Force head and table rotation in Simulation post settings. I presume if the part were in the right position it could stay within the travel limits. 

However I have no idea how to do it. Is it possible to do it only  with CAM or is it necessary to turn on some parameter in the control system (iTNC)?

I'll be glad for any advice

Share this post


Link to post
Share on other sites
1 hour ago, Adam prog said:

I'm working on a part that's a bit bigger than machine's travels so I must do one side in half and then turn the table by 180deg to finish the other half. I'd like to try some more efficient way especially for face roughing, something what looks like if you turn on Force head and table rotation in Simulation post settings. I presume if the part were in the right position it could stay within the travel limits. 

However I have no idea how to do it. Is it possible to do it only  with CAM or is it necessary to turn on some parameter in the control system (iTNC)?

I'll be glad for any advice

With a good post this is easy. You have your main WCS set up and that should output the rotation axis Zero. Then you copy that WCS and rotate it 180 degree. Now everything you want rotated 180 degrees is using that WCS. Your post will output the rotation matrix in the code and you have a nice day.

Share this post


Link to post
Share on other sites

I don't want to just rotate WCS 180 degree. I need to simultaneously control linear Y axis with rotational C axis.

https://www.youtube.com/watch?v=VPM-W93TyBo

Sth like in this movie. My part is rectangle shape. I want to finish face in whole distance with Y linear axis and rotational C axis simultaneosly. The face mill should starts on some C axis angle, moving forward (Y+) together with C axis. The part should rotating during that moves and the face mill should ends on the same Y position as it starts.

I hope it's understandable. Tough to explain. 

 

Share this post


Link to post
Share on other sites

Coincidentally, I'm doing this right now. Using Y and C because I don't have enough X. If your post is setup right, you can do it using the rotary axis control page. Works really well.

 

Mike 

  • Like 2

Share this post


Link to post
Share on other sites

What's the toolpath you are using? You mean rotary axis page in 2D toolpaths?

I have tried it with several setups however with no result.

 

Share this post


Link to post
Share on other sites

image.png.9f1d66bc1aead5d573eb44294ee53d95.png

 

Yep. This works but I have a pretty nice post with TCP.

MIke 

  • Like 1

Share this post


Link to post
Share on other sites
5 hours ago, Adam prog said:

I don't want to just rotate WCS 180 degree. I need to simultaneously control linear Y axis with rotational C axis.

https://www.youtube.com/watch?v=VPM-W93TyBo

Sth like in this movie. My part is rectangle shape. I want to finish face in whole distance with Y linear axis and rotational C axis simultaneosly. The face mill should starts on some C axis angle, moving forward (Y+) together with C axis. The part should rotating during that moves and the face mill should ends on the same Y position as it starts.

I hope it's understandable. Tough to explain. 

 

That is not what you described in your request. Like Gotez just posted use those switches and you should be good to go.

Share this post


Link to post
Share on other sites

I did this in our matsuura by modifying a generic 4 axis post. But it kept posting on the right side and I needed it on the left and was I  unable to get it to do that. I ended up having to do it transform operation and I was able to hack my way through it.

 

Camplete offers a pretty good utility to accomplish this though

  • Like 2

Share this post


Link to post
Share on other sites
21 hours ago, Leon82 said:

CAMPlete offers a pretty good utility to accomplish this though

+1

I do this all the time. Sometimes because I have to, other times... because I can. :rofl:

  • Like 1

Share this post


Link to post
Share on other sites

went through the same problem not too long ago UMC ROTARY CUT topic , never really did get the effect i wanted from master cam , ended up hand coding for the rotary axis cut.

Share this post


Link to post
Share on other sites
On 11/24/2021 at 8:04 AM, DUM1 said:

went through the same problem not too long ago UMC ROTARY CUT topic , never really did get the effect i wanted from master cam , ended up hand coding for the rotary axis cut.

Singularity is the main issue with Mastercam if using one of their base posts. Using a 3rd Party post it will come out cleanly.

Share this post


Link to post
Share on other sites

I used to program a Mazak E1600.  I often had large parts like this.  I primarily used G68.2 but until I figured that out I had a macro that would rotate and save to G55 at 180 degrees.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

Join us!

eMastercam - your online source for all things Mastercam.

Together, we are the strongest Mastercam community on the web with over 56,000 members, and our online store offers a wide selection of training materials for all applications and skill levels.

Follow us