Back WCS Bug

[Veritasproject777]

I have a very simple part on the 4th Axis that has slots on the top front bottom and back.

If I Pocket the top slot and rotate it around it post fine. but if I do the same tool path on the Top front Bottom and Back keeping the wcs the same ans change the T and C plane for each on I get this error

 

RUN TIME - Only single-axis rotation is allowed! Angles may be incorrect.

 

but on when I use the Back T and C plan if I create a new plan in the same spot as the Back and name it Alt Back it will post with no Error.

 

Please Help.

 

Thank you,

[André Lapointe@In-House Soluti]

The problems comes from the fact that the back and bottom tool plane have the X+ direction to the left as the TOP and front have the X+ direction to the right.

To make sure you always have good coordinates and no error message you need to proceed like you did. Create yourself 2 new sets of plane by rotating the TOP plane by 90 and 180 to match the back and bottom plane and rogram off these.

On a vertical Machine you shoud almost never have to use the bottom and back plane because when using the rotay axis you need to have the toolpane vectorof the rotary axis (in this case X) always oriented in the same direction to avoid errors.

 

HTH

[Guest]

Please don't create multiple topics on the same issue.

 

I believe this question has been answered the same way twice now.

[NOTW Programmer]

No wonder we couldnt get it to work, what about left and right if you had the rotary along the Y. What about if you have a fifth axis? will you still need to create the extra planes. Thx !

[mayday]

What about if you have a fifth axis

no planes needed. the software actually becomes somewhat smart

[NOTW Programmer]

The problems comes from the fact that the back and bottom tool plane have the X+ direction to the left as the TOP and front have the X+ direction to the right.

To make sure you always have good coordinates and no error message you need to proceed like you did. Create yourself 2 new sets of plane by rotating the TOP plane by 90 and 180 to match the back and bottom plane and rogram off these.

On a vertical Machine you shoud almost never have to use the bottom and back plane because when using the rotay axis you need to have the toolpane vectorof the rotary axis (in this case X) always oriented in the same direction to avoid errors.

 

HTH

 

Well actually the Bottom plane slot actually posts out right, eventhough the X direction changes also; the problem shows up when you switch from Bottom to Back. Ill duplicate the file and upload on the FTP for everyone to see. I fired up the post debugger and from the looks of it somehow the cdelta value while transitioning from the Bottom to Back is 180 and since csav is also 180 the resulsting rotation is zero hence the lack of the A-270 block. I think it might be in the NCI, any suggestions ?

 

 

[NOTW Programmer]

Hello Fellows,

 

Any answer to this yet, has anyone had a chance to look at the MCX file. Like said before the X direction does change for the Back and Bottom views but the Bottom view posts without any issues; the Back view posts but without the A coordinte.

 

Regards, GM.

[chip]

I struggled with this too recently. I drew the part on X4 and I programmed the rotery operation on V9. I forgot how to save the tool path angle. So I stopped by master am interuppted his class ans asked him dumb questions.

Please don't create multiple topics on the same issue.

 

I believe this question has been answered the same way twice now.

don't take it personal.... JParis is pissed that his buddy obama is running out of bright ideas on how to stimulate the economy and insure us. Shhhh. He must still believe its Bushes fault.

[NOTW Programmer]

I struggled with this too recently. I drew the part on X4 and I programmed the rotery operation on V9. I forgot how to save the tool path angle. So I stopped by master am interuppted his class ans asked him dumb questions.

 

don't take it personal.... JParis is pissed that his buddy obama is running out of bright ideas on how to stimulate the economy and insure us. Shhhh. He must still believe its Bushes fault.

You quoted JParis but that doesnt answer the question as to why the bottom plane posts right but not the Back plane. Thx !

[Guest]

again the question has already been answered

 

don't use back and bottom, create from rotated planes

 

You want to keep fighting go ahead, but that's the answer

[Guest CNC Apps Guy 1]

again the question has already been answered DOZENS OF TIMES

 

don't use back and bottom, create from rotated planes

 

You want to keep fighting go ahead, but that's the answer

 

Fissed for accuracy!

[chip]

"The giant" made it clear the you have to view you as to the machine as "normal". If you were back X+ would be inverted "mav"! Also 5 axis stuff is cool too because you have a lot of tool control with normals (and such). J Paris is cool. Shhh. I think he religiously contrubitues to the obama camagne!

[NOTW Programmer]

I guess everyone here doesn't seem to want to answer why is it that MCam handles the Bottom plane fine. But when it comes to the Back is when it acts weird, I uploaded a file above that shows this. I am aware that when you switch to the Bottom and Back views the X+ is switched but why on the Botoom plane it switches yet still it posts just fine; IT IS ONLY ON THE BACK PLANE. Please read the question right before replying, Thx !

[BenK]

The problems comes from the fact that the back and bottom tool plane have the X+ direction to the left as the TOP and front have the X+ direction to the right.

To make sure you always have good coordinates and no error message you need to proceed like you did. Create yourself 2 new sets of plane by rotating the TOP plane by 90 and 180 to match the back and bottom plane and rogram off these.

On a vertical Machine you shoud almost never have to use the bottom and back plane because when using the rotay axis you need to have the toolpane vectorof the rotary axis (in this case X) always oriented in the same direction to avoid errors.

 

 

again the question has already been answered

 

don't use back and bottom, create from rotated planes

 

You want to keep fighting go ahead, but that's the answer

 

 

 

Please read the question right before replying,

 

Please read all the responses before asking the same question yet again.

[Guest]

Let's say this thread is on hold for the time being.

 

Someone has some 'splaining to do to webby