Dust collection #1: Metric Bill Pentz based cyclone

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Blog entry by dedalo posted 05-22-2011 06:09 PM 3163 reads 0 times favorited 4 comments Add to Favorites Watch
no previous part Part 1 of Dust collection series Part 2: Improving workshop dust collection »

Hi Everyone! it was a rainy morning, I got up early and couldn´t make noise in the shop (everyone sleeping) so started sketchup and built a version of Bill’s cyclone.

This cyclone is the smallest one, calculated for a shop vac or very small motor, and a ducting of 4”

here is bill´s sheet with measures

here is the sketchup plan

the plan is metric will update it in the next days…

for spanish version visit


4 comments so far

View brazjuca's profile


54 posts in 3047 days

#1 posted 05-22-2011 07:50 PM

very good project which would use to manufacture materil.

-- Brazjuca guarapari Brasil. All worth it when the soul is not small. (Fernando Pessoa)

View dedalo's profile


173 posts in 3373 days

#2 posted 05-22-2011 07:53 PM

hi fernando!

you coud use a metal sheet or PVC. In argentina there are a lot of people that works with metal sheet finishd with zinc, I will try to build mine using it.


View SteveMI's profile


1141 posts in 3770 days

#3 posted 05-22-2011 08:05 PM

I looked into the size you are making a while back. It would be very interesting how big of a shop tool it will work on. What stopped me was not having anyone who could help me with the metal work.


View fernandoindia's profile


1081 posts in 3420 days

#4 posted 05-22-2011 11:19 PM

Hi Rodrigo,
It was raining here 8 am too. Anyway I make a lot of noise to wake up teenagers, lol.

Interesting job ahead Rodrigo. I investigated a lot, and finally took the lazy way: just put an intermediate separator with no ciclone at all. It works quite well. No chips at all through the turbine, just dust. That was I was looking at minimum, no wood or screws hitting the fans.

Thank you for the belt and extrusion link. Will pay a visit there.

@Fernando Brazjuca , have you pay a look at Martin´s recent blog on this? He is using a security plastic cone.

-- Back home. Fernando

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