Cyclone Vacuum Add on for Shopvac Updated





Introduction: Cyclone Vacuum Add on for Shopvac Updated

Update: I am working on using three cones to see if I can use a bigger motor.

I should have done this sooner... been thinking about it for years. You can purchase all different kinds of attachments for all kinds of vacuums... but I wanted one for my shopvac. Being able to keep my vacuum sucking at it's best by keeping the filter clean... it's a no brainer.

So I needed a cone. I was driving around and trying to figure out how I was going to roll a piece of plastic and seal it off when I saw... a street cone. I know everyone describes these by saying... it's like using your vacuum attached to a street cone. Well I did it.

Street Cone (Big) $2 at Re-store
Various bits of wood $0
Drywall screws
Liquid nails or some other sticky gluey stuff (Silicone will work)
Shop vac
Shop vac hose
Shop vac extension tubes

First I needed some way to set the cone upright on my bucket, so I made this kinda box around it *(I was going to use milk crates because they are just cool... but didn't)

1. Cut two pieces of plywood the same size as the base of the cone
2. Cut Shop vac tube into one 11" piece and one 8" piece *(Approximate) The end of the tube with the flared end, the one that hooks to the hose went in the side.
3. Cut football shaped hole toward bottom of cone just big enough to shove tube in and have it not fall out. End of tube on inside needs to be close to the wall so the junk will slide around and then down.
4. Cut hole in the center of plywood pieces 2.5" for tube (top) and a 3.5" one for the bottom (outlet for junk into bucket)
5. On some cones there are little feet that keep it off the ground an inch or two. I cut these off.
6. Put a ring of liquid nails or something like it around the base of the cone and then screw it to the wood base with the 2.5" hole.
7. The other end of cone poked through the other plywood bit and I cut slits in the end, more liquid nails, then screwed it. (See image)
8. Made the outside wood supports and then went a little nuts with the miter saw.
9. Glue the longer bit of tube in the hole on the top... this tube has to go down farther than the side tube... it's a math thing.

Hook tube from vacuum to top tube and then another hose to the one on the side... Wallah

Overall this project was really easy and could be upscaled or downscaled for your needs. I will make some cart for the vac and the cone and I am done. Tested this and works really well *(See pic) I can use any bucket that is less than 14" across. I am wondering why vacuum companies don't do this with all their vacuums? Especially shop vacs that need the suction and keep the filter pretty clean.

Update: 4/2016
Still using and it works great. I am working on making it more powerful with more street cones and a bigger motor... maybe. Might just leave good things alone.



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    Thank you for this inspiration! I knocked one together in an evening with nothing more than rivets and duct tape, and it works incredibly well

    May sound like a daft question, but which hole is for the hose to the power tool? Great thinking using a traffic cone, I have wondered how to make the cone too :)

    Power tool (vacuum moter) is sucking from inside of cone and the intake for the vacuum hose is the one in the side.

    the hose that is in the side of the cone is for sucking up the stuff. The motor on top pulls everything in.

    Vacuum > cyclone cone > then vacuum tube to suck stuff up. The Vacuum connects to the top of the (actually the bottom) of the cone. The tube to suck up stuff attaches to the side of the cone and the cone sits on a bucket.

    Hi, thanks. However I've already built one :)

    Hi, i'm just wondering, does your cone collapes on itself when the vac in working? Because I implemented a similar design but my trafic cone (which is a heavy duty one) just keeps collapsing due to the vacuum. Thanks

    Yes. That's why I did the wood frame, it holds thing apart by pulling on each end of the cone. I also found that the intake and output holes need to be the same.

    Hi, ok thank you, and is it possible to know also:

    -dept at which the central tube goes?

    -did you put any filter at the end of the central tube?

    thank you again

    The Depth is about 1/4 the way down.

    No filter on end of tube. That's the point of the cone part... although it would't be a bad idea. I have sucked up cloth ans stuff.