trying edit post for 5axismaker

[Anonymous]

I am trying to edit post processor for 5axismaker which is controlled by mach3.

This machine is head-head machine the B, C axis with axis offset.( see attachment)

So, I try to setup the axis of machine from  post processor

I test these two settings to generate gcode, but all of them are the same, seems setting offset for axis is no difference.

1.

if (true) {
var bAxis = createAxis({coordinate:1, table:false, axis:[0, 1, 0], offset: [0, 30.44, 0], range:[-190,190], preference:0});
var cAxis = createAxis({coordinate:2, table:false, axis:[0, 0, 1], offset: [0, 0, 57.1], range:[-360,360], preference:0 ,cyclic: properties._cyclic});
machineConfiguration = new MachineConfiguration(bAxis, cAxis);

2.

if (true) {
var bAxis = createAxis({coordinate:1, table:false, axis:[0, 1, 0], offset: [0, 0, 0], range:[-190,190], preference:0});
var cAxis = createAxis({coordinate:2, table:false, axis:[0, 0, 1], offset: [0, 0, 0], range:[-360,360], preference:0 ,cyclic: properties._cyclic});
machineConfiguration = new MachineConfiguration(bAxis, cAxis);

what did I do wrong?

[bob.schultz · Accepted solution]

The offset parameter in the createAxis command is not currently supported in HSM nor does it properly adjust points for rotary heads (tables only), so you will need to add logic to your post to  adjust the output XYZ coordinates to match your machine configuration.  For this style of machine you will also have to enable TCP mode so that the tool center point is available to the post.

    optimizeMachineAngles2(0); // TCP mode - we compensate below

The Generic 5-Axis Thermwood  post contains logic that will adjust the points for a rotary head with a common pivot point.  You can look at the following sections of code in the post to see how it is done.

var pivotDistance = toPreciseUnit(10.291 + 2.5, IN); // 2.5in is assumed for the tool length

headOffset = /*tool.bodyLength +*/ pivotDistance; // control will compensate for tool length

    var displacement = machineConfiguration.getDirection(new Vector(_a, _b, _c));
    // var displacement = currentSection.workPlane.forward;
    displacement.multiply(headOffset);
    displacement = Vector.diff(displacement, new Vector(0, 0, headOffset));
    xOutput.offset = displacement.x;
    yOutput.offset = displacement.y;
    zOutput.offset = displacement.z;

For your machine you will also have to adjust the XYZ coordinates for the C-axis center of rotation, since it is offset from the B-axis center of rotation.  You will need to create a new vector accounting for the C-axis rotation for the displacement vector in this case and perform the same operation as above using the offset value for the C-axis.  For example:

    displacement = new Vector(Math.cos(_c), Math.sin(_c), 0);

Make sure that the signs of the C-axis displacement vector are correct for the orientation of the C-axis on your machine.

[Anonymous · Accepted solution]

Thanks a lot!!
I will study harder to figure out of this!!

[bayramW2A6L · Accepted solution]

displacement = new Vector(Math.cos(_c), Math.sin(_c), 0);

What will I write this line. 

thank you now.

[Anonymous]

This help me a lot thanks, especially the attachment photo, thanks!

[bayramW2A6L]

hi fitztu;

I could not do it. Did you do it.

displacement = new Vector(Math.cos(_c), Math.sin(_c), 0);

Where to do it.

[bayramW2A6L]

hi bob;

I could not do it.

displacement = new Vector(Math.cos(_c), Math.sin(_c), 0);

Where this line will be written.

[Anonymous]

Hi i write here

[bayramW2A6L]

hi Fitstu;
Sorry.
I could not do it.
There is an error but I could not find it.
I'm happy if you help me.
my post file thermwoo.cps 

[Anonymous]

I think you have to show more information about your machine.

Because edit a post is not like this just put some section in then will work.

[bayramW2A6L]

h i Fitztu;

thank you very much

Machine information in the attachment file.
 my machine mazak integrex years of 2002 model.

Iso is not calculating in programming.

pivot distance 200mm

pivot distance+tool lenght.

best regards

[Anonymous]

Hi bayramW2A6L

I saw your machine's structure.

I think you don't have to use this math formula

displacement = new Vector(Math.cos(_c), Math.sin(_c), 0);

And I have read your cps file, your machine is AB structure but in your cps file you set with BC structure.

this line

displacement = new Vector(Math.cos(_c), Math.sin(_c), 0);

is for C axis, there is no C axis on your machine.

you can just simply set to AB axis then i think it will be work.

[bayramW2A6L]

Axis B-C is set.

Tool length calculated.

Pivot calculated.

But in the intermediate angles the x-axis and the y-axis change.

my machine config: 

<?xml version="1.0"?>
<machine xmlns="http://www.hsmworks.com/xml/2009/machine" version="1.0">
<description>Generic 5-axis AC (table-table)</description>
<machining milling="yes" turning="no" wire="no"/>
<tooling toolChanger="yes" toolPreload="yes" numberOfTools="100" maximumToolLength="0mm" maximumToolDiameter="0mm" maximumToolWeight="0kg"/>
<machiningTime ratio="1" toolChangeTime="15s"/>
<coolant options="FLOOD MIST THROUGH_TOOL AIR AIR_THROUGH_TOOL SUCTION FLOOD_MIST FLOOD_THROUGH_TOOL"/>
<home x="0mm" y="0mm" z="0mm"/>
<capabilities workOffsets="100"/>
<spindle axis="0 0 1"/>
<post/>
<simulation wcs="0mm 0mm 0mm" retractOnIndexing="yes" shortestAngularRotation="yes"/>
<axis id="Y" link="head"/>
<axis id="X" link="head"/>
<axis id="Z" link="head"/>
<axis id="U" actuator="rotational" axis="0 1 0" coordinate="Y" link="head"/>
<axis id="V" actuator="rotational" axis="0 0 1" coordinate="Z" link="table"/>
</machine>

[AchimN]

Have a look in getWorkPlaneMachineABC() for this line:

  var tcp = true;

and change it to this:

  var tcp = false;

[bayramW2A6L]

var tcp = false; is nothing

[AchimN]

Ahaaa, noticed that you did not enable your machine configuration for BC axis, it is set to false.

Pleas search for this line in onOpen()

  if (false) { // note: setup your machine here

and change it to true, otherwise your BC axis setup will be ignored by the post.

[bayramW2A6L]

Hi AchimN;

my machine is integrex 2002 model b/c axis. b axis angle not calculate.

function onOpen() {

if (true) { // note: setup your machine here
var bAxis = createAxis({coordinate:1, table:false, axis:[0, 1, 0], range:[-110, 110], preference:1});
var cAxis = createAxis({coordinate:2, table:false, axis:[0, 0, 1], range:[0, 360], preference:1});
machineConfiguration = new MachineConfiguration(bAxis, cAxis);

setMachineConfiguration(machineConfiguration);
optimizeMachineAngles2(0); // map tip mode
}

if (!machineConfiguration.isMachineCoordinate(0)) {
aOutput.disable();
}
if (!machineConfiguration.isMachineCoordinate(1)) {
bOutput.disable();
}
if (!machineConfiguration.isMachineCoordinate(2)) {
cOutput.disable();
}

if (!properties.separateWordsWithSpace) {
setWordSeparator("");
}

my nc code

G90 G94 G40
M5
G0 Z0.

(**** TRUE ****)
M5
T1
S5000 M3
M8
G0 B45. C-180.
G17
G0 X30.607 Y0.
Z20.607
X23.536 Z13.536
G1 X20.707 Z10.707 F333.3
X10. Z0.
X30. Z-20. F1000.
G0 X50.607 Z0.607
G25C
Z0.

(**** FALSE ****)
T1
S5000 M3
M8
G0 B45. C-135.
X21.642 Y21.642
Z20.607
X16.642 Y16.642 Z13.536
G1 X14.642 Y14.642 Z10.707 F333.3
X7.071 Y7.071 Z0.
X21.213 Y21.213 Z-20. F1000.
G0 X35.784 Y35.784 Z0.607
G25C
Z0.

(**** HALF TRUE ****)
T1
S5000 M3
M8
G0 B45. C-90.
X0. Y30.607                               (Y0)
Z20.607
Y23.536 Z13.536
G1 Y20.707 Z10.707 F333.3
Y10. Z0.                                     (X10)
Y30. Z-20. F1000.                      (X30)
G0 Y50.607 Z0.607
G25C
Z0.

(**** FALSE ****)
T1
S5000 M3
M8
G0 B45. C-45.
X-21.642 Y21.642
Z20.607
X-16.642 Y16.642 Z13.536
G1 X-14.642 Y14.642 Z10.707 F333.3
X-7.071 Y7.071 Z0.
X-21.213 Y21.213 Z-20. F1000.
G0 X-35.784 Y35.784 Z0.607
G25C
Z0.

(**** TRUE ****)
T1
S5000 M3
M8
G0 B45. C0.
X-30.607 Y0.
Z20.607
X-23.536 Z13.536
G1 X-20.707 Z10.707 F333.3
X-10. Z0.
X-30. Z-20. F1000.
G0 X-50.607 Z0.607
G25C
Z0.

(**** FALSE ****)
T1
S5000 M3
M8
G0 B45. C45.
X-21.642 Y-21.642
Z20.607
X-16.642 Y-16.642 Z13.536
G1 X-14.642 Y-14.642 Z10.707 F333.3
X-7.071 Y-7.071 Z0.
X-21.213 Y-21.213 Z-20. F1000.
G0 X-35.784 Y-35.784 Z0.607
G25C
Z0.

(**** HALF TRUE ****)
T1
S5000 M3
M8
G0 B45. C90.
X0. Y-30.607
Z20.607
Y-23.536 Z13.536                    (Y0)
G1 Y-20.707 Z10.707 F333.3
Y-10. Z0.                                   X-10
Y-30. Z-20. F1000.                     X-30
G0 Y-50.607 Z0.607
G25C
Z0.

(**** FALSE ****)
T1
S5000 M3
M8
G0 B45. C135.
X21.642 Y-21.642
Z20.607
X16.642 Y-16.642 Z13.536
G1 X14.642 Y-14.642 Z10.707 F333.3
X7.071 Y-7.071 Z0.
X21.213 Y-21.213 Z-20. F1000.
G0 X35.784 Y-35.784 Z0.607
G25C

M5
Z0.
B0. C0.
X0. Y0.
M30

[Sverhu]

Привет! Включил все как написано выше, у меня проблема, не получается точной обработки по траектории, плавная линия обработки почему-то идет зигзагами. Примеры на скриншотах. Не могу найти ошибку в постпроцессоре

[Sverhu]

picture of the machine

[bob.schultz]

Hello @Sverhu,

I've looked at your post processer and while the output has some issues the post processor seems to be correct.  The main issue is that the B and C-axes will reverse directions in the affected areas.  This is coming from the Fusion side.  The reason for this is that you are using a loose tolerance for the operation.  I changed the tolerance from .1mm to .001mm and the output looks much smoother.

You should note that the backplot is actually showing the machine axes and not the tool end point, so the tool end point should still track fine, but the finish may be a bit rough with the axes reversing directions.

     

On a side note, you may want to look into basing your post processor on the RS274 Multi-Axis post processor, which uses the latest logic for adjusting the output coordinates in the post processor engine, instead of having to do it inside of the post processor.  This post processor also supports machine simulation, though you will have to use a property to enable/disable TCP, since machine simulation requires TCP to be active, but your machine does not support this.

You would need to enable TCP when running the machine simulation and then disable it when post processing.