Custom CAM toolpaths in siemens NX

[Marcoantoniosilva]

Hello everyone.

I've been searching some sample codes that can provide examples about drpos, dpud, udop functions, used to create custom toolpaths in siemens NX. I need a code that provide information about use of selected geometries used to create reference for the toolpath which will be created. Follow a code that i created on java to use DPUD function, but i found some problemns, like a infinity loop on generate the operation. Someone can help me?

  public static int dpud(String[] args) throws Exception, NXException {
        int retorno=0;
        initvar();
        UFVariant udpud;
        UFVariant operptr;
        UFVariant udrpos1, udrpos2, udrpos0;
        UFDpud.Purpose purpose;
        String opname;
        UFVariant pathptr;
        Tag operacao = null;


        udpud = theufsession.dpud().askDpud(null);
        operptr = theufsession.dpud().askOper(udpud);
        purpose = theufsession.dpud().askPurpose(udpud);
        opname = theufsession.oper().askName(operptr);
        pathptr = theufsession.oper().askPath(operptr);
        operacao = theufsession.obj().cycleByName(opname, operacao);
        //udrpos0 = theufsession.dpud().askDrpos0(udpud);
        //udrpos1 = theufsession.dpud().askDrpos1(udpud);
        //udrpos2 = theufsession.dpud().askDrpos2(udpud);

        
        
        

        if (purpose == UFDpud.Purpose.USER_PARAMS) {
            theufsession.ui().openListingWindow();
            theufsession.ui().writeListingWindow("USER PARAMS" + "\n");
            theufsession.ui().writeListingWindow("NOME DA OPERACAO: " + opname + "\n");
            theufsession.ui().writeListingWindow("TAG NUMBER : " + operacao + "\n");
            theufsession.ui().writeListingWindow("TAG NAME   : " + theufsession.obj().askName(operacao) + "\n");
            purposeopen();
        } else {
            theufsession.ui().openListingWindow();
            theufsession.ui().writeListingWindow("generate drpos" + "\n");
            //retorno = -1;
        }

        
       
        
        /*
         if (purpose == UFDpud.Purpose.REWIND) {
         theufsession.ui().openListingWindow();
         theufsession.ui().writeListingWindow("REWIND" + "\n");
         }


         if (purpose == UFDpud.Purpose.STOP_PROCESSOR) {
         theufsession.ui().openListingWindow();
         theufsession.ui().writeListingWindow("PAROU A DO PROCESSAMENTO" + "\n");
         }

         if (purpose == UFDpud.Purpose.TAXIS_PARAMS) {
         theufsession.ui().openListingWindow();
         theufsession.ui().writeListingWindow("TAXIS PARAMETERS" + "\n");
         }


         if (purpose == UFDpud.Purpose.PROJ_PARAMS) {
         theufsession.ui().openListingWindow();
         theufsession.ui().writeListingWindow("PROJ PARAMS" + "\n");
         }


         if (purpose == UFDpud.Purpose.INIT_PROCESSOR) {
         theufsession.ui().openListingWindow();
         theufsession.ui().writeListingWindow("INIT PROCESSOR" + "\n");


         //theufsession.param().generate(operacao);


         theufsession.ui().writeListingWindow("GERADO COM SUCESSO" + "\n");

            

         }
         //*/




        return retorno;
    }

 

[markrief]

Have you searched the GTAC Symptom/Solution database? (formerly uganswer)
There are lots of code samples there.

https://solutions.industrysoftware.automation.siemens.com/

For a discussion, I think you will have a better audience in the Siemens NX languages forum:

https://bbs.industrysoftware.automation.siemens.com/vbulletin/forumdisplay.php?f=187

Mark Rief
Product Manager
Siemens PLM

 

[Marcoantoniosilva]

Dr. Mark Rief

Thanks for your repply.

I searched on GTAC Symptom/Solution Database, but i not found a sample code or a sample file that can provide information about dpud and drpos. Only about UDOP. I searched too on the forum that you had recomended, but i dont found what i need.

can you provide me some sample code with dpud, drpos, and another functions to create custom toolpaths on NX that i need?

Thanks for your attention

 

[Marcoantoniosilva]

Someone can help me?

 

[Marcoantoniosilva]

Someone can help me?

Please?

 

[KariH]

dpud is not so well documented.

you need to add handling for GET_NEXT and GET_INTERMEDIATE
You might get a clue from this..

 } else if (purpose == nxopen.uf.UFDpud.Purpose.GET_NEXT) {
            double proj[] = {0.0,0.0,-1.0};
        	drpos0 = dpSess.askDrpos0(dpudPtr);
            coord = path.getNextCoord();
            if(coord==null){
	        	ufDrPos.createFinalLift(drpos0);
            }else{
                pos[0] = coord.x;
                pos[1] = coord.y;
                pos[2] = coord.z;
                ufDrPos.setPosition(drpos0, pos);
                if(id==0){
                	ufDrPos.setProjVec(drpos0, proj);
                	ufDrPos.createFirstCut(drpos0, pos, dir);
                	}
                else{
                	ufDrPos.createCut(drpos0, pos, dir);
                }
            }
            id++;
        } else if (purpose == nxopen.uf.UFDpud.Purpose.GET_INTERMEDIATE) {
            UFVariant drpos1 = null;
            UFVariant drpos2 = null;
//            System.out.println("purpose GET_INTERMEDIATE");
            final double ratio = dpSess.askRatio(dpudPtr);
            drpos1 = dpSess.askDrpos1(dpudPtr);
            drpos2 = dpSess.askDrpos2(dpudPtr);
            double[] pos1 = ufDrPos.askPosition(drpos1);
            double[] pos2 = ufDrPos.askPosition(drpos2);
            double deltaX = pos2[0] - pos1[0];
            double deltaY = pos2[1] - pos1[1];
            double deltaZ = pos2[2] - pos1[2];
            double midpos[] = new double[3];
            midpos[0] = deltaX * ratio + pos1[0];
            midpos[1] = deltaY * ratio + pos1[1];
            midpos[2] = deltaZ * ratio + pos1[2];
            drpos0 = dpSess.askDrpos0(dpudPtr);
            ufDrPos.setPosition(drpos0, midpos);
            id++;
        } else if (purpose == nxopen.uf.UFDpud.Purpose.REWIND) {
            System.out.println("purpose REWIND");
        } else if (purpose == nxopen.uf.UFDpud.Purpose.STOP_PROCESSOR) {
            System.out.println("purpose STOP_PROCESSOR");
            id=-1;
            // must unload so NX don't crash
            unloadType = BaseSession.LibraryUnloadOption.IMMEDIATELY;
        } else {
        	System.out.println("Purpose ??");
        }

 

[KariH]

Wrong formatting in my last post

       } else if (purpose == nxopen.uf.UFDpud.Purpose.GET_NEXT) {
            double proj[] = {0.0,0.0,-1.0};
        	drpos0 = dpSess.askDrpos0(dpudPtr);
            coord = path.getNextCoord();
            if(coord==null){
	        	ufDrPos.createFinalLift(drpos0);
            }else{
                pos[0] = coord.x;
                pos[1] = coord.y;
                pos[2] = coord.z;
                ufDrPos.setPosition(drpos0, pos);
                if(id==0){
                	ufDrPos.setProjVec(drpos0, proj);
                	ufDrPos.createFirstCut(drpos0, pos, dir);
                	}
                else{
                	ufDrPos.createCut(drpos0, pos, dir);
                }
            }
            id++;
        } else if (purpose == nxopen.uf.UFDpud.Purpose.GET_INTERMEDIATE) {
            UFVariant drpos1 = null;
            UFVariant drpos2 = null;
//            System.out.println("purpose GET_INTERMEDIATE");
            final double ratio = dpSess.askRatio(dpudPtr);
            drpos1 = dpSess.askDrpos1(dpudPtr);
            drpos2 = dpSess.askDrpos2(dpudPtr);
            double[] pos1 = ufDrPos.askPosition(drpos1);
            double[] pos2 = ufDrPos.askPosition(drpos2);
            double deltaX = pos2[0] - pos1[0];
            double deltaY = pos2[1] - pos1[1];
            double deltaZ = pos2[2] - pos1[2];
            double midpos[] = new double[3];
            midpos[0] = deltaX * ratio + pos1[0];
            midpos[1] = deltaY * ratio + pos1[1];
            midpos[2] = deltaZ * ratio + pos1[2];
            drpos0 = dpSess.askDrpos0(dpudPtr);
            ufDrPos.setPosition(drpos0, midpos);
            id++;
        } else if (purpose == nxopen.uf.UFDpud.Purpose.REWIND) {
            System.out.println("purpose REWIND");
        } else if (purpose == nxopen.uf.UFDpud.Purpose.STOP_PROCESSOR) {
            System.out.println("purpose STOP_PROCESSOR");
            id=-1;
            // must unload so NX don't crash
            unloadType = BaseSession.LibraryUnloadOption.IMMEDIATELY;
        } else {
        	System.out.println("Purpose ??");
        }

 

[Marcoantoniosilva]

KariH, Hello my friend..

Very thanks for your collaboration...

You save me

you solve all my problems...Thanks a lot

 

[Marcoantoniosilva]

KariH, please, can you provide me the an example to use a surface or a line as guide to an operation ??

as example, can i use a surface like a drive or make a contour like mill contour multi axis operation??

I wait anxious your help...

 

[KariH]

Marcoantoniosilva
I don't have any simple example but as you see in my code I have a object named path. It is created from a NX curve. The curve is divided into small segments depending on the resolution I need. Each time I call (or actually NX calls with Purpose.GET_NEXT) path.getNextCoord() it will return the coordinates of the start of the next segment. These coordinates are used to to set the drivegeometry with ufDrPos.setPosition(), when there are no more coordinates i run ufDrPos.createFinalLift()

NX will continue to call the dpud until you run ufDrPos.createFinalLift() if you don't do that you will end up with a infinite loop.

I have never tryed to use surfaces as drive..