This has happened a few time’s. Finish a project and totally done. Go to cut out the profile cut to finish it up and it plunges DEEP on its own. I even set it for 5 passes using 3/4 board so it would take small cuts. 2nd pass it plunges and heads into my carve and ruined it. Any ideas or fixes? Thanks
Well, you are not giving us a lot to work with? What program are you using, Have you reviewed the G code file. You can always do a “air cut” to test out new projects. You can also put your g code file in a simulator to see how the cut would go… Also not sure what machine you are working with… Very hard for anyone to help you.
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File runs fine using NC viewer. Woodworker with black box controller using Aspire. Someone said it could be interference and that the Makita router and the controller should be on separate circuits.
Have you figured out the solution to your profile cut with a mind of its own? I am having the same issue. I had been using Carbide Create with my Onefinity Journeyman without issue and just switched to Vcarve Pro. My machine runs completely different with the Vectric software (like a Porsche vs a Festiva). I know I need to rework my electrical setup.
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Welcome Godwins,
When deciphering this kind of a problem the first thing to do is to figure out if it is repeatable. When you run the same program again does the same problem happen in the same place? You can take the part off and run it in the air with the spindle off if you want.
If it is repeatable then the issue is almost certainly the g-code. - Definitely not EMI.
If it is not repeatable then it could be EMI or other things.
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Thanks Chris! I will give it a go and see what happens!
I have had this same damn problem twice in the past, never could figure out why it happened, 1/4 bit just started traveling down into the waste board like .75 and had to quickly cut it off, I checked all the settings, went back and checked the toolpaths and files and never figured it out. Though since then I have changed the settings on my probe block it was 15.4 and my calipers get 14.9 so I don’t think that was it, but I have also started zeroing from the machine bed as well and the bit has yet to touch my waste board since.
Though 3 of us calling the fluke is more than a fluke, something to it but how to narrow it down and get the repeatability is going to be the tough part, cause usually when it happens your too pissed off to stop and think about it clearly lol.
(also Side note was using Aspire like the initial post, wonder if it’s something in the gcode file it’s outputting)
Z moving on it’s own is definitely a well reported problem like here.
As suggested there, one should always check the cable connections.
But it is still useful to rule out the g-code. Once you have settled down - from being pissed off that is. Set the Z 2 or 3 inches up in the air with no work on the table and run the same code again. If the problem is EMI or connectors or something else it will not happen in the same spot each time.
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We’ve seen “pirated” versions do this in the past.
I seem to have resolved my issue and thought I would circle back on the off chance this info helps someone someday. I ultimately contacted Onefinity (thank you!) and worked through this list Z-Axiz Cutting Too Shallow or Deep.
For me, I realized that 1) I needed my router cable moved behind my machine because it was always touching a motor cable, or the machine 2) I had it plugged into a power strip. 3) The other issue that I had was that my collet and possibly nut had been damaged as a result of the original EMI issues and so even once it all was fixed, the bit was still shooting out. Now with a new nut and collet, it seems to be ok. I’m still getting issues with irregular profile cuts on my circles using vcarve pro (which I am new to) but I suspect that is unrelated.
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