Hey guys it's been quite a while since I was on the forum. I have a couple of questions about a Haas 4th axis. We have an HRTA6 (which is similar to the 210). I haven't been on the haas in quite a while so my memory is a bit fuzzy. Been running our router mostly for my work.
So here's the things that I have questions about. Today my coworker was running the mill with the 4th set up and was cutting an oval shape that he was essentially spiral cutting from what I could see. He ran into a couple of problems, and asked me about them.
First is there a maximum number of revolutions that the rotary can make before an error alarm occurs. He said he got an error message saying the rotary reached the maximum number of revolutions or travel. I don't know what the exact error code was. I was reading on the forum that one possible cause could be there are many revs. logged in the G92 offset and this could cause the message. I read that there is a way to clear it but don't quite understand how to do that. I find it a little hard to belive that we could have reached the max revolutions in the registry since mainly the work done on the 4th has been indexing.
Also he was expirencing issues with feedrates not matchng what he programmed in Mastercam. He asked me about a max feedrate. I know there is one, and looked it up in the manual. From what I read and understand the max is logged as 60 degrees per second. So if i understand the manual correctly, and what I read on the forum, the machine control will calculate the revolution speed based upon the programmed feedrate of ipm. Is this correct? I also saw that there needs to be a diameter entered into the control for the stock, to do do this type of machining. But from what I recall this is not necessary for only index machining. Am I Correct? so say for instance in the case of my coworker machining the oval stock he probably needs to have an overall diameter entered into the controller for the size at maximum rotation. does that sound right? then the machine will calculate and compensate the speed of the rotation on the A axis based upon this diameter, to do the sumtaneous milling in all 4 axis movements.
I know this may sound kind of vague but ub=ntil I get to talk to him more and see his program I am only going based upon what he told me.
Chris