mike561h

ROTARY 4TH AXIS TOOLPATH PROBLEM

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hEY GYTS,

 

I PROGRAMMED MY PARTS TOOLPATH GOING X POSITIVE TO X NEGATIVE CUTS. AXIS OF ROTATION IS ON X. THE CUT IS FINE THIS WAY. BUT I HAD TO ROTATE THE PARTS 180 DEGREES AND REGENERATE DUE TO THE 4TH AXIS IS SET UP THE OPPOSITE DIRECTION. THE TOOLPATH HAS A START POINT BUT IT IS CUTTING INSIDE TO OUTSIDE INSTEAD OF FROM START POINT OUTSIDE TO INSIDE. IS THERE A SETTING FOR X SOMEWHERE. I NEED -X TO POSITIVE X CUT.

 

THANKS

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You can set you rotation cw or ccw in machine def manager

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FYI Caps Yelling.

 

Do you have a file you can share so we can see what you are refering too. How did you drive the toolpath? Did you try changing the chain direction? Did you try repicking the toolpath in a different operation?

 

HTH

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I used rotary 4 axis and picked the surfaces to drive the tool.

I programmed it with the 4 axis holding the part on the left side machining right to left on x axis of rotation. I loaded the pgm into the cnc and no problem on graphic run till I realized the 4 axis is setup for left to right cut. i guess we can just setup the 4 axis like it is programmed. I rotated the part 180 in mastercam 9.1 and regenerated the toolpaths so we could use the setup we had. When doing a backplot or verify the toolpath still machines right to left.

I can't figure out why I can't get the tool to run from the start point left to right.

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Are you using the flow 5 axis path? If so you should be able to click on the geometry and in the dialog box choose cut

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Mirror your part then program it then mirror back the program to the right postion and it will cut from left to right.

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OUR MAIN MAN MIRR0RED THE PART IN THE MACHUNE AND SO FAR SO GOOD. STAY TUNED. WE ARE GOING TO FIGURE OUT HOW TO PRG IT ALSO USING MIRROR

THANKS

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Hello everyone.

We go the job rolling by mirroring the x and a axis on the machine. I still was unable to use mirror to program the part and remirror it back to have it cut the right direction. I know Gibbs asks you what side your 4 axis is on.

anyone know how to tell Mastercam that the 4th axis is on the right side. it does fine when the 4 axis is on the left side.

 

thanks

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Email me your file and I will look at later and send it back..

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Mike I sent you back a copy and put a copy on the FTP zipped under the MC9 folder.

 

file is called

T-0044-03 2 SUPRA SPREADER LEFT_CADCAM.ZIP

 

Backplot the Transform tool path and this should be waht you want.

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I lost a post. So much I posted. frown.gif

 

Gotta crash now. Remember you can circle mill a tram hole - after indicating the side of stock. Tram hole exactly half of Y axis stock and whatever x axis distance from the edgefinder-found side. Mimic that rotation at center of tram hole with the origin in MC [tram hole center coorinates located at MC origin]. Regen toolpaths...

 

OK, nevermind! biggrin.gif

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Hey everyone,

Something kind of similar has been happening to my students. We programmed the 4th on the left side of the machine, and in CAM everything looks awesome, but when it runs the part comes out mirrored. The simulation and everything looks right but then we start running it and it machines a mirrored part

 

Secondary H~.emcam.URL

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2 hours ago, DanGilbert said:

Hey everyone,

Something kind of similar has been happening to my students. We programmed the 4th on the left side of the machine, and in CAM everything looks awesome, but when it runs the part comes out mirrored. The simulation and everything looks right but then we start running it and it machines a mirrored part

 

Secondary H~.emcam.URL

That is not a vaild link or file. Please put something up we can download to best help. 

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You say mirrored, but I think what your really saying is the helical cuts are inversed. I tried messing with the MMD and Post to get that changed and nothing worked. I would then mirror your part along the X axis and drive the toolpaths that way. Cheat the model to get you what you need. Not ideal, but sometimes that is what you need to do to get a job done in the real world so it will be a good teaching exercise on how to think out of the box to solve the problem. 

Here is the file with what I was referring too. Hopefully this helps get you and the students going in the direction you all need to get what your after done. 

Secondary Helix 30 DEG 0.625 2019 Rev A.emcam

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