Cyclone blower construction materials

**rev** · 8th April 2015, 04:05 PM

I'm about to build a blower (BP design) and would be happy to receive comment on use of materials to hand.

Instead of 16mm MDF (which I don't have), I have some 12mm acrylic sheet offcuts (Corian type) that has been waiting to be repurposed. It is very dense and acoustically dead which might help a bit with deadening the noise from the cyclone.

Instead of a 150mm strip of 16 gauge steel, I'm thinking of using a leftover strip of plastic garden edging that is about 3mm thick (I think it is made of recycled PET) to form the outside spiral. It is pretty slick and also a lot less noisy than steel to knock on so should contribute to a quieter system; my only concern is whether it has sufficient strength for the job in the event (however unlikely) that a small piece of timber somehow makes it way to the impeller.

**ACT_Grumbles** · 8th April 2015, 05:02 PM

I wondered if you had considered the static electricity effects here - I don't see a problem with the materials otherwise. Of course, if you have a long length of PVC round your shed before you get to the blower

Regards from Canberra

**rev** · 8th April 2015, 06:05 PM

Thanks Grumbles, I hadn't considered the static.
The PVC is to be held up with metal straps tek-screwed to the shed frame; this should conduct away any built up charge. Also the cyclone itself is metal though I have not planned for a grounding wire (but could easily apply one if deemed necessary).

**TheNutter** · 8th April 2015, 09:01 PM

Hi Rev

Will the Corian carry the weight of the motor? Is it strong enough?

That black edging is good, I bought some to replace the rusted out bottom of my shed and then used up the remainder for a heap of jobs. I think that if you could hold the edges it would stand a blow very well.

Regards

Ian

**BobL** · 8th April 2015, 09:14 PM

Originally Posted by rev

Thanks Grumbles, I hadn't considered the static.
The PVC is to be held up with metal straps tek-screwed to the shed frame; this should conduct away any built up charge. Also the cyclone itself is metal though I have not planned for a grounding wire (but could easily apply one if deemed necessary).

I wouldn't worry about static.
If it does have a look at what BP says about it.
The Clearvue is after all made entirely out of (PETG) plastic.

**rev** · 8th April 2015, 09:36 PM

Originally Posted by TheNutter

Will the Corian carry the weight of the motor? Is it strong enough?

I am very confident with the strength of the 'Corian'. It is sometimes used as router table or plate material because it holds a lot of weight without deflecting. I will rout a shallow groove in it to capture the plastic garden edging so as long as the plastic holds up I think it do the job well. Not quite sure how to achieve a sharp bend in the plastic at the junction of the outlet...I might try heat and if that doesn't work, I'll cut it and super glue it in a 'mitred' join for maximum contact area, perhaps even reinforcing the back of the join with silicone...unless someone has other ideas.

**QC Inspector** · 9th April 2015, 05:10 AM

If you have enough I would glue two sheets of the countertop material together to get 24mm thick. 12mm gets pretty thin if you groove it much.

Pete

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