• Hi all and welcome to TheWoodHaven2 brought into the 21st Century, kicking and screaming! We all have Alasdair to thank for the vast bulk of the heavy lifting to get us here, no more so than me because he's taken away a huge burden of responsibility from my shoulders and brought us to this new shiny home, with all your previous content (hopefully) still intact! Please peruse and feed back. There is still plenty to do, like changing the colour scheme, adding the banner graphic, tweaking the odd setting here and there so I have added a new thread in the 'Technical Issues, Bugs and Feature Requests' forum for you to add any issues you find, any missing settings or just anything you'd like to see added/removed from the feature set that Xenforo offers. We will get to everything over the coming weeks so please be patient, but add anything at all to the thread I mention above and we promise to get to them over the next few days/weeks/months. In the meantime, please enjoy!

Dust explosions

W

Woodpile

Seedling
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I have decided on buying a Camvac 286-3-wall extractor, (originally I was going for the 286-4 but I've changed my mind, simply because the drum will fill quickly when using my planer/thicknesser) because we may be moving house this year I intend to mount the extractor in a purpose built frame on castors, it will be connected to pipework with branches to bandsaw, tablesaw, planer/thicknesser, bench sander and pillar drill, I will probably also have an open end just incase I need one, all branches will have gate valves fitted. If I've got it wrong will someone tell me as dust extraction is a bit of a minefield to me :eusa-doh:

I will be use 110mm soil pipe and flexible tubing as I have these to hand, my question is how do I earth the system, do I run a wire from each machine along the pipework to a screw which is screwed into the soil pipe then terminating at the extractor, or do I have to actually wire the earth connected to the earth pin in a 3pin plug?

Stew
 
I've been running my whole shop dust extraction system in 110mm pipe with no earthing for years now and no sign of static problems. It is based round a 3hp motor and 15" blower so will be shifting a bit more air than your camvac!
The cyclone and the drum are metal and neither are earthed and I've touched both numerous times when the DC is running without a tickle. The impeller will be earthed via the motor but no dust should get there if the cyclone is working anyway.

I do notice that the UPVC pipe runs attract external surface dust so presumably there is a slight charge build up due to the movement of dust inside but it's not a big issue and possibly helps to keep the workshop air a bit cleaner too.

If your tools are earthed or at least at earth potential and the camvac bin is earthed then any charge accumulated in transit will soon disperse anyway.

Bob
 
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