4th Axis question

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garrettpen
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4th Axis question

Post by garrettpen »

So I just got my 4th axis setup, there is something I'm not quite grasping. From the documentation, and the graphics I think this might be a bug? So when choosing the orientation in the job setup it should be the X axis (my 4th axis is inline with X) and the Y wrap post processor. This configuration looks correct graphically however, I don't get the wrapped output pop up when I save the Gcode, and when I try running the file it cuts off in space. When I select Y for the orientation and the Y wrap post processor it cuts correctly but graphically it looks like the attached photo. Am I missing something here? TIA!
Attachments
Orientation.jpg
example.jpg

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Rcnewcomb
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Re: 4th Axis question

Post by Rcnewcomb »

Can you post the actual CRV file? That will save a lot of guesswork.

Which version of Vcarve are you running? Rotary has changed behavior between V9.0 and V11.0

What post processor are you selecting?

Recommendation: Z-zero on the center of the cylinder. It will save you a lot of problems when your blank is slightly out alignment or a different size compared to what you told the program.
- Randall Newcomb
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adze_cnc
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Re: 4th Axis question

Post by adze_cnc »

Both images show the stock being rotated around the x-axis. The help file emphasizes the axis that non-rotational moves will cut along—the x-axis—while the pop-up emphasizes that rotational moves will cut along the y-axis.

garrettpen
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Re: 4th Axis question

Post by garrettpen »

Rcnewcomb wrote:
Sun Aug 01, 2021 4:57 pm
Can you post the actual CRV file? That will save a lot of guesswork.

Which version of Vcarve are you running? Rotary has changed behavior between V9.0 and V11.0

What post processor are you selecting?

Recommendation: Z-zero on the center of the cylinder. It will save you a lot of problems when your blank is slightly out alignment or a different size compared to what you told the program.
I just attached the .crv file, I am on version 10.514, and I'm using a slightly modified Mach3 wrap processor. I actually have a Masso controller, so I modified the PP to wrap on "A" instead of "A-" (the image was coming out mirrored) and I changed it to output files with a .nc extension instead of .txt.
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kawkCanKoozie.crv
(1.41 MiB) Downloaded 47 times

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Rcnewcomb
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Re: 4th Axis question

Post by Rcnewcomb »

So when choosing the orientation in the job setup it should be the X axis (my 4th axis is inline with X) and the Y wrap post processor.
However, the file is currently setup Along Y, wrapping X values.
WrapAlongY.JPG


I believe this is what you want. I've included the modified CRV file.
AlongX.JPG
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kawkCanKoozieAlongX.crv
(1.41 MiB) Downloaded 38 times
- Randall Newcomb
10 fingers in, 10 fingers out, another good day in the shop

garrettpen
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Re: 4th Axis question

Post by garrettpen »

The problem is when I select x it moves off into empty space. I am setting the origin in the center of the cylinder (just like in the V-carve file). Selecting Y it works as expected, but the graphics are incorrect. This will be an issue when I want to wrap something around the entire cylinder.

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Rcnewcomb
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Re: 4th Axis question

Post by Rcnewcomb »

The problem is when I select x it moves off into empty space.
I don't understand this. Are you talking about within VCarve, or when you actually cut the design?

Can you post a photo of your rotary setup with an indication of X and Y?

Have you done some basic test setups to help verify the CAM, post-processor, control software, and motors are all working together as expected?

Have you cut other things in the rotary that have worked as expected?
- Randall Newcomb
10 fingers in, 10 fingers out, another good day in the shop

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