Need help please

[KevTN]

Hello everyone. Using Vcarve Desktop with UGS. For some reason I will be in the middle of a pocket and then the Z axis drives all through the depth. If someone could look at my paths

first is 0.2 pocket 1/4 endmill
second 0.96 1/4 endmill
Then 0.1 90 vbit but I can never get past the second 0.2 pocket.

I've included my files paths. Any assistance will be greatly appreaciated as these are for a friends dad.

Thank you

Cup Files.zip

File Paths

(46.97 KiB) Downloaded 22 times

[martin54]

It is unlikely to be a problem with your gcode, much more likely this is a machine issue rather than a software issue, static can cause all sorts of problems like this, do you have dust extraction & is your dust hose grounded?

[scotttarnor]

Are you setting your Z at the proper location e.g. Material surface, machine bed ?

[Rcnewcomb]

The G code is fine. You can use a tool such as NC Viewer to view the code. But even simpler than that, if you don't see the issue in the VCarve preview then the problem is not coming from the G code. As others have mentioned, you are dealing with a machine issue where it is likely losing steps. Check for loose connections, mechanical binding, static interference, check your feed rates, etc.

[KevTN]

It is unlikely to be a problem with your gcode, much more likely this is a machine issue rather than a software issue, static can cause all sorts of problems like this, do you have dust extraction & is your dust hose grounded?

yes sir. it is driving me crazy! lol

[KevTN]

Are you setting your Z at the proper location e.g. Material surface, machine bed ?

Yes sir using the paper method. It will do two passes and then wham tries to did itself to China.

[KevTN]

The G code is fine. You can use a tool such as NC Viewer to view the code. But even simpler than that, if you don't see the issue in the VCarve preview then the problem is not coming from the G code. As others have mentioned, you are dealing with a machine issue where it is likely losing steps. Check for loose connections, mechanical binding, static interference, check your feed rates, etc.

Thank you. Will do....

[KevTN]

Here are some pictures to give you an idea of what is happening....

[sharkcutup]

Or you may have unknowingly/mistakenly saved a bogus toolpath thinking you had re-calculated the toolpath before saving but didn't actually do a re-calculate before saving to post processor. It happens to all of us at one time or another.

Sharkcutup

[KevTN]

Or you may have unknowingly/mistakenly saved a bogus toolpath thinking you had re-calculated the toolpath before saving but didn't actually do a re-calculate before saving to post processor. It happens to all of us at one time or another.

Sharkcutup

I thought that too so I recreated the the project twice with the same result...(idk) I'm going to go look at my Z axis equipment and try to figure it out. Thank you for your input