Good link that, and congrats on building your cyclone. I followed the same route a few months ago and I still get a glow of satisfaction every time I use it.
This is an opportune moment to post an update on the pressure relief valve (mentioned in a previous thread a couple of weeks ago) to prevent the bin collapsing and eventually splitting under blockage conditions.
I made it. In fact I made two versions and tried various springs from the Screwfix compression spring kit which I ended up buying.
I was delighted with the ingenuity of them and the way I had re-purposed throwaway stuff like offcuts of copper pipe and a used decorator's filler cartridge, until I found they didn't work.
However, I now have a clear understanding of the problem and other potential pitfalls.
I have a new and completely different design that takes these into account and should work touch wood.
More details on the problem, the new design, and a load of alternative design ideas that could be made to work as soon as I've made my prototype and seen how it does. I'll probably knock up some web pages because it's quite interesting (if you're the sort of person who can get all juiced up over adventures with a home-brew pressure relief valve).
Yes, it would have been easier to fibreglass my bin or buy a steel one, but I wouldn't be having all the geeky fun and learning wot I am learning with all this.
The end product will, if it works as expected, be fairly easy to make, should work with minimal tweaking on a variety of bin desgins and vacuum strengths, and look pretty gnarly into the bargain.
W.
building
cyclone
one item
might be
workshop.
freeing
the way:
cleaners.
product
ends
these