CNC do unplanned cuts

21

I was having the problem with a Millright Carve King. And yes, sometimes it would work fine. Some days it would just quit in the middle of a cut - no errors no clue as to why. All those problems went away when I stopped using the Shop Vac for dust collection. I tried grounding with the copper wire too, but still had issues. Using a full dust collection setup solved my issues. I had the dust collector when I got my OneFinity. I’ve never had any issues with the OneFinity. I have a Journeyman with the Buildbotics controller like yours.

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22

Thanks for all of this. I have a Jet DC 1100 dust collector on wheels that I use for my planner, table saw and others. But never on my CNC. I could but it does not have metal in the hose. Is that something you installed in the hose. The reason I don’t use the Jet is it is just hard to get to the CNC. It is big.

23

I use something similar to this Amazon 21/2 inch dust collection hose

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24

My Jet has a hose with medal in the hose but the hose from my router and the hose from my shop vacuum do not. Do you ground your hose? I wrapped the hose from the router in copper wire and connected that to ground. But I read I believe on the forum that doing so was a waste of time. I will try the file that caused the problem in a few days as I have too much other things in work. But the file I had issues with is a file I have used many time with no issues.

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This seems to say it is.

I use the flexible hose with the metal wire coil. I have run it with that wire grounded and not grounded. No difference. I get a shock when I touch the hose either way. So I believe PVC can’t drain current to a wire. I have never had Z axis affected by it either. But that is mostly because I make sure the hose never touches the metal of the machine - especially the Z slider or motor.

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26

Hey Frank,

after its author wrote the camotics.org software, which simulates any g-code visually that you give it, they created the buildbotics.com CNC controller.

It’s a software that shows what the buildbotics controller (and its derivate, the Onefinity controller of Original/PRO/X-50 Series) will do with your g-code.

Regarding the static electricity in your dust collection system, it’s the air and the particles which move that create the static electricity. The only thing to avoid this is to use all-metal tubes for dust collection. But you can avoid to get shocks when you touch it, see below.

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I have never been shocked from any part of my CNC. The file that gave me the issue screwed up with duct collection on or off. I tried a completely different file where I did not use dust collection at all. It was just a VCarve and a profile cut out. It did the VCarve perfectly but when it did the profile cut I had a 1/4 inch end mill it start to plunge 1/2 into the material. I stopped the machine deleted the tool paths from the thumb drive rechecked the profile tool path . It was to cut in 6 passes. The material was about 1 1/4 thick. And it did the same plunged 1/2 into the material. I need this project as a gift for a party that day. So I replaced the 1/4 bit with a bit I have that could handle a cut that deep. Reset the Z. Did nothing else and it started to cut the profile as originally planned. Meaning making 6 passes. This is makes zero sense to me.

28

Okay thanks

| Aiph5u Aiph5u (not affiliated with Onefinity)
September 21 |

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Hey Frank,

after its author wrote the camotics.org software, which simulates any g-code visually that you give it, they created the buildbotics.fcom CNC controller.