I will report back John.
Can you say which filter you where using ?
Do you have at least 4' of straight pipe entering the cyclone ? Apparently that will impact it's efficiency. I have 8' of straight pipe before the first Y.
I purchased a Wynn filter based mostly on the square foot rating. The Oneida retrofit is 96 sq. ft., the Wynn is 300.
My thinking at the time was I didn't want any possible back pressure from the filter, thus giving me the highest possible CFM/velocity with a relatively small impeller.
For a one man shop, making one piece at a time, it will take me quite a while to reach your 3 month findings
But, what is in the dust bin right now is mostly fine dust from the band saw, SCMS and stroke sander. What is in the filter clean out box is the equivalent of running your finger across a table before a weekly household clean up...
My old canister filter would have been due for a half dozen turns of the beater bar and a quick blow with air !
Cheers, Don
Don Kondra – Furniture Designer/Maker
Product Photographer