topic Re: mapWorkOrigin =false - Pattern issue (HSMWorks) in HSM Post Processor Forum

mapWorkOrigin =false - Pattern issue (HSMWorks)

mwhitten123 — Fri, 26 May 2017 17:53:19 GMT

Hello all,

I am trying to post patterns using a Haas or Fanuc post with the map work origin set to false("mapWorkOrigin =false"). If I insert this line (mapWorkOrigin = false) into the top of the post as shown below, everything seems to work fine except that the patterns are output to the gcode in the same spot. In example, if I face off a part and then pattern it over 10", the gcode simply repeats the same exact values as the unpatterned toolpath.

The dump file seems to be outputting the patterned values, but as indicated, the gcode does not. This would seem to be a post issue, but I am not sure as none of the stock posts I have tried will work with patterns when mapWorkOrigin = false.

.
.

allowSpiralMoves = true;
highFeedrate = (unit == IN) ? 500 : 5000;
mapWorkOrigin = false; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


// user-defined properties
properties = {
  writeMachine: true, // write machine
  writeTools: true, // writes the tools
.
.

I attached some very simple test files, I am using HSMWorks R1.41874 and the Haas.cps(ver 41433) for testing. I also tested in Inventor HSM and found the same results.

****test files attached

Does anyone have a clue if this is a post issue, user issue(me) or a software issue and a clue as to how to correct?

Thanks in advance,

Mike

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

Anonymous — Fri, 26 May 2017 18:04:20 GMT

Did you add your if ( properties.mapworkorigin statement ?

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

mwhitten123 — Fri, 26 May 2017 18:19:08 GMT

No, not sure what you are referring to, but a clue would be much appreciated.

Thanks

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

bob.schultz — Fri, 26 May 2017 18:43:35 GMT

@mwhitten123 wrote:

Hello all,

I am trying to post patterns using a Haas or Fanuc post with the map work origin set to false("mapWorkOrigin =false"). If I insert this line (mapWorkOrigin = false) into the top of the post as shown below, everything seems to work fine except that the patterns are output to the gcode in the same spot. In example, if I face off a part and then pattern it over 10", the gcode simply repeats the same exact values as the unpatterned toolpath.

The dump file seems to be outputting the patterned values, but as indicated, the gcode does not. This would seem to be a post issue, but I am not sure as none of the stock posts I have tried will work with patterns when mapWorkOrigin = false.
.
.

allowSpiralMoves = true;
highFeedrate = (unit == IN) ? 500 : 5000;
mapWorkOrigin = false; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


// user-defined properties
properties = {
  writeMachine: true, // write machine
  writeTools: true, // writes the tools
.
.
I attached some very simple test files, I am using HSMWorks R1.41874 and the Haas.cps(ver 41433) for testing. I also tested in Inventor HSM and found the same results.

****test files attached

Does anyone have a clue if this is a post issue, user issue(me) or a software issue and a clue as to how to correct?

Thanks in advance,

Mike

Hello Mike,

The "mapWorkOrigin =false" statement tells the post engine to not translate the operations based on the workOrigin of the operation. Translated patterns use the workOrigin to inform the post where the pattern instance is located. Since you disabled the automatic mapping of the workOrigin you will have to handle the translation yourself inside the post. You can do this by using the following command.

setTranslation(currentSection.workOrigin);

I don't know why you are not automatically mapping the work origin, but you will have to place a conditional around this statement so that it is not processed when the workOrigin is handled elsewhere in the post.

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

Anonymous — Fri, 26 May 2017 18:55:29 GMT

https://forums.autodesk.com/t5/hsm-post-processor-forum/tool-orientation-2-selected-points-no-difference/td-p/6102371

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

mwhitten123 — Fri, 26 May 2017 19:06:04 GMT

Hello Bob,

----------

--------

It seems weird to me that the "default" is to map the origin to the setup origin without warning the user; I have never seen a CAM system do this until now. Most/Many shops must have the origin set on the part. This is for a variety of reasons of course.

Anyhow, your help is much appreciated on this. It makes sense now, I just need to figure out how to add the logic.

Thanks!

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

bob.schultz — Mon, 11 Sep 2017 21:13:20 GMT

Hello Michael,

You asked that I supply the solution in the Forum after the MM problem was fixed and I seemed to have forgot, until this same issue came up again. Here is a solution that solves this scenario.

First, add the definedPatterns variable to the collected state section at the top of the program.

// collected state
var definedPatterns = new Array();

Then add the 'offsetPattern' function above the 'onSection' function. 'offsetPattern' will translate the XYZ coordinates for the pattern instance translations when 'mapWorkOrigin = false'.

// performs work origin translation for patterns when mapWorkOrigin = false
function offsetPattern() {
  if (currentSection.isPatterned() && !mapWorkOrigin) {
    var currentPattern = currentSection.getPatternId();
    var found = false;
    for (var i = 0; i < definedPatterns.length; ++i) {
      if (currentPattern == definedPatterns[i].patternId) {
        newOrigin = Vector.diff(currentSection.workOrigin, definedPatterns[i].baseOrigin);
        // writeln("Base Origin = " + definedPatterns[i].baseOrigin);
        // writeln("New Origin = " + newOrigin);
        setTranslation(newOrigin);
        found = true;
        break;
      }
    }
    if (!found) {
      definedPatterns.push({
        patternId: currentPattern,
        baseOrigin: currentSection.workOrigin
      });
      newOrigin = new Vector(0, 0, 0);
      setTranslation(newOrigin);
    }
  } else {
    newOrigin = new Vector(0, 0, 0);
    setTranslation(newOrigin);
  }
}

and finally, add the call to 'offsetPattern' above the call to get the initial position in 'onSection'.

// adjust origin for patterns
  offsetPattern();

  var initialPosition = getFramePosition(currentSection.getInitialPosition());

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

mwhitten123 — Mon, 11 Sep 2017 21:50:18 GMT

Hello Bob,

I very much appreciate the work on this one; this will help out several of our customers.

I will play will it later this week and post back on this thread.

Thank you!

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

mwhitten123 — Tue, 03 Oct 2017 02:00:11 GMT

Hello Bob,

Sorry, I got busy/sidetracked and am just now getting to this.

I updated a post and have questions. Before I say anything, it may best if I make some simple samples and email them to you. I plan to get this done in the next few days.

Thank you,

Re: mapWorkOrigin =false - Pattern issue (HSMWorks)

CoastalMachine — Thu, 03 Sep 2020 16:57:46 GMT

Thanks for the help. Seems to work for my issues trying to use patterns.