Rotory axis feed rates

[Machineguy]

Ok, I have the rotary active in MC. I'm doing a full rotary groove that's about 7000 deg of turning. The max federate on this rotary is 60 deg/sec.

I want a F50.0 to post out. what is the correct way of calculating this? MC is giving me a strange federate. If I put 8.37 in the federate box I get 50.0 posted out.

What is MC using to calculate

The rotary is 8.0 inches dia. The part is 10.0 dia. 

 

Any one?

[Machineguy]

Ok, I had time to do some digging. For axis substitution, In this case "A":

The post was not putting out the correct codes. (No G93.)

The codes it was putting out were in the wrong place as far as "A" axis was concerned. (G94)

The plunge rate was being computed with the feed rates. Any x, y ,z feed rate moves were not what the tool page was showing. Only the A feed rate needs to be computed.

 

Last, the unwind. When done, there was no hard code in the post. It should read "G28 G91 A0."  Watching the rotary unwind for 7000 deg is nuts.

 

 

Machineguy