Yesterday after completing some testing on my LR3, I decided I would empty my Cyclone 5 Gal container. After removing the lid I was hit by what looked and felt like a Bolt of Lightning! After getting up off the floor I decided to call it a day…..
This morning (after the shock wore off), I pulled the entire vacuum system apart and wired it for grounds. I hope this helps some else Before they go through this.
I started with 20 AWG wire, stripped off the sheathing every 2 to 3 feet.
Then I connected it to the mounting bolts on the cyclone, along with another section of 20 AWG wire up to the hose section, and added a quick-release connection.
After getting the 25’ of stripped 20 AWG feed through the vacuum hose, I reassembled and tested with my OHM meter and connected it all to the outlet my LR3 is plugged into.
Ouch. Cheers for the PSA and info on how you fixed.
Will do something similar thanks to you sharing your experience, thank you! I have mess everywhere, so the idea of getting impaled/blunt-force trauma on the way down to the floor would suck even more.
I busted open a toe (was wearing flip flops in the garage- BAD PRACTICE) by involuntarily kicking when a cyclone Zapped me on my LR4 beta build.
This should get more call out on the docs. There’s one or two posts every month where I wonder if someone zapped a controller causing it to lose its’ mind.
I had / have an anti-static hose. This is inside the cyclone and bucket.
The lesson I shouldn’t have had to learn: Insulators will store a charge even if you have a fat ground lead right next to them.
Speaking of which, the error in the pictures above is that an exposed ground lead running down a bucket will bleed some charge from a few tens of mm on either side of the lead, and will thus have an overall total lower charge. But on the opposite side the bucket and cyclone top will still be charged up.
The electrons know what they’re doing even when we have no clue.
And this is where we can’t have one rule for the world, or we can, but we don’t need it.
Interestingly (for me) tatic in dust collection is almost unheard of here. It’s simply never dry enough to build up a charge. The chances of it doing so are so remote that my cognitive dissonance only allows me to watch you tube clips that demonstrate that it’s not a problem!
I would be interested to know if @Jonathjon has ever seen any static in FL?
Not real often here. We see it more the rare occasion that the humidity is lower. I do have my 2 1/2” dust collection hose grounded so I don’t ever see it on the actual LR4. And I have never been shocked by my trash can that’s inline just before the dust collector.
