I’d be really keen to see your results - it drove me bonkers - my first board I couldn’t run a job without disconnections. Carbide sent me a new one and it was way better (I had the original board), but I’d still get a disconnect occasionally, I then grounded the router and all disconnections went completely.
It’s worth mentioning UK routers are earthed but until the outer case was earthed I still got disconnects. I only ran a small 11a cable to an earth but it worked.
I had both on separate power circuits, and now they are all on a single power outlet with no issues.
It would be interesting if moving the board makes a difference but not something I can test as I don’t have the problem
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Griff
(Well crap, my hypometric precursor device is blown…)
9
I’ll second you on grounding! I’ve had zero failures since I grounded my 611 case. AND, I have since pulled the ground wire from the inside of my 22’ vacuum hose and re-run my 611 power cord in parallel with the myriad other wires in my drag chain. Still a-ok.
There really should be a sticky somewhere to inform of the grounding issue. As well as to NOT set soft limits in CM. And…
@Griff & @Luke alright boys, grounding the router casing wins the prize. I ran a length of 18ga speaker wire from a screw on the router casing to a common ground on the electrical box and… so far… not a single drop. And I’ve TRIED. on/off/on/off of router during a job, quick, slow, speed changes, off/on, unplugging the router, etc… all solid. Now that’s only on router-running-airjobs, haven’t put bit to wood, but I’m extremely hopeful…
Once I run a cutting job or two, I’ll put another post up with easy-to-search terms and some pics of how I fixed it.
I’ve grounded mine. This shouldn’t be as effective as it seems to be.
I replaced the cord with a high quality 3 wire cord, and ran it out the case to one of the screws that hold the top cover to the body. The top cover is pretty tightly packed. Another way to do it is with a separate wire all the way from the case. I thought this was cleaner, and an excuse to open another tool and poke at it’s innards…
Following up, just ran a big job and had several failures Though not until a good 10 minutes into the job. I was also running my shopvac on it, which I wasn’t during my testing this morning. I re-ran the job without the vac on and it completed… so… hm. I don’t believe my hose has a steel wire in it, otherwise I’d ground it… and again, same vac and hose I’ve used on the other machine w/o issue… thoughts welcome.
Must be, yea. There’s lots of various “fixes” folks use for abating static in PVC dust collection pipes. I think some folks run a length of grounded bare copper wire through the hose. I’ll have to do some research.
Got a bunch of cad work to do on the next batch of parts, so nothing left to cut today.
In the interim I’ve sucked about 10 feet of stranded copper wire down my dust hose and then grounded that to the spindle mount (grounded to earth from the original wire I ran this morning). In theory that’ll help? Who knows.
I’ll update when I’ve had a chance to run the next batch of parts.
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Griff
(Well crap, my hypometric precursor device is blown…)
19
Possibly a dumb question but is the junction box you’ve connected to grounded? I connected directly to a ground pin on one of my plugs.
Seems like you are sorting through it, but just to also spread the word, I grounded my Makita router to avoid ESD related disconnects (write up topic shown below). Haven’t had issues since then, but I also had major static buildup from my shopvac / Suckit dust boot and I don’t use it any more for the time being. I just vacuum by hand as required and carefully avoid touching the machine with the vac nozzle. I’ve not given up completely, its just that I’m moving soon to a more humid climate than the super-dry and cold air currently in Colorado, so I’m just ignoring the problem for the time being.
This might be a silly one, and I don’t know if it will work but what if you try an anti static band like this:
It might not work but they are a couple of bucks from a diy store.
If it doesn’t you can get special anti static dust hoses specifically for this application - it has a metal core running through and on dysons is standard…
I’d looked at some “central vac” hose in the 2" OD range in the past, I think that’s got a metal coil as well…
I’m wondering if I shouldn’t just cut to the chase and move my CM board unit away from the machine. If that didn’t mean splicing in about 50 wires, I’d have done it from the getgo. cough cough @WillAdams the carbide store should totally sell just the extension cable kits separate from the full upgrade kits CooughCough
Ha ha, that be a great idea. I had to extend 2 motors when fitting drag chain. Nothing like sewing and soldiering 16 wires then heat shrinking each connection…
As mentioned, I sucked about 10’ of stranded copper up into my dust hose, then grounded the end to my spindle.
Last night I ran a ~2h job, involving lots of on/off of both the vac and the spindle and had NO grbl crashes. I’ve got another job to run this weekend of a similar length and I’ll test again, but I’m calling this goblin vanquished for now.
Thank you ALL for the help, specifically on grounding the hose - I wouldn’t have thought of that.
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Griff
(Well crap, my hypometric precursor device is blown…)
26
Glad you got this figgered out. Weird that the goblins are all different.
I initially grounded my vac hose with copper wire through the entire length, as well as the router body. But, the wire in the ground hose proved a problem in that it caused clogs in the hose. I use the same hose for vacuuming the floor, some of the stuff that gets sucked up during that can be much larger then chips/dust from the SO3. Soooo, on a 4-clog day I got…annoyed and yanked the wire out. That was many jobs ago, still zero interrupts. Go figure.
Though not until a good 10 minutes into the job. I was also running my shopvac on it, which I wasn’t during my testing this morning. I re-ran the job without the vac on and it completed… so… hm. I don’t believe my hose has a steel wire in it, otherwise I’d ground it… and again, same vac and hose I’ve used on the other machine w/o issue… thoughts welcome.
