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Thread: Another home built cyclone.
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12th July 2020, 10:37 AM #1
Another home built cyclone.
I was going to post about this further down the track when I’m more confident of what’s actually happening but thought I’d do it now as it’s similar to Heimlaga’s post.
I fabricated a cyclone starting with a cylinder from a Carbatec? dusty another member was kind enough to give me a few years back.
It had the square inlet and the inverted dish and was about 480 dia by 200 high.
I added another 200 cylinder to the bottom of it and a 1.6 ratio cone in 1mm steel.
The return inner tube was 200 and a bit longer than the cylinder.
I didn’t make a downward spiral as a mate said if I got the slope wrong it would impede rather than improve the airflow down the cone.
Mounted this above a ply box of about 100 litre capacity with a hinged front door and a plastic crate to collect the waste thru a 150 exit at the bottom of the cone.
I don’t do production or use MDF so plan to just dump the waste in our 2 compost bins.
Blower is about 14” in dia by 3” in unit with a 2hp 3ph motor, very noisy.
150 mm steel ducting to 30” disc and 150 to 20” Bandsaw with2 or 3 90mm flex pick ups.
Final few metres to 9” jointer only 125mm steel duct.
Exhaust is 150 pvc thru the wall into an old dog kennel with some foam baffles inside.
Ive only just test run this on Friday but used all 3 machines and so far there doesn’t seem to be any dust in the dog kennel at all.
I is noisy outside still and very noisy inside.
I plan to box around the unit with some 75/100 mm polystyrene foam and possibly form ply over that. The back 3m x 3m room will only have it and a compressor in it, it has 8mm thick fibro walls on 100 x 50 steel frame. I plan to stuff the walls with foam and cover with formply to lessen the noise to the neighbours.
The room will be sealed from the rest of the shed and sound insulated on that wall plus the gal iron roof.
A work in progress, not sure how it’s all going to work out in the end.
HJimcracks for the rich and/or wealthy. (aka GKB '88)
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12th July 2020, 10:44 AM #2GOLD MEMBER
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Looking good and I will be interested in the result. There was a post here many years ago of someone using one of the conical road marking cones used at roadworks for the cone of a cyclone, I always wondered how that went.
CHRIS
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12th July 2020, 12:32 PM #3Senior Member
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The conical roadworks cone went great actually, for a small shopvac system. Eventually I remounted the cone on 2x19mm MDF insert/platten which I attached to a Bunnings rectangular transparent plastic box, which I'd re-enforced the sides on to stop it from collapsing. The see through box made it much easier to empty at 1/3 full.
I've since move on to a 1HP blower mounted outside
Most of my workshop time is down at the WoodCraftGuild of the ACT where I am trying to convince them to let me buy a ClearVuMax, or build a Bill Penz design, for our main workshop and re-plumb our turners room with our existing cyclone
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12th July 2020, 01:58 PM #4GOLD MEMBER
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Glad to hear it was successful, I could not remember what drove it just that it seemed like a good idea at the time for a small system.
CHRIS
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18th July 2020, 10:07 AM #5
Noise control.
So far so good with my cyclone.
It appears to deposit all the visible waste in the plastic box ok.
There is no waste at all in the outside dog kennel/muffler at all.
The noise is the current concern mainly from the blower.
To stop this travelling out of the building I am stuffing the shed walls with foam and adding recycled form ply over that.
I have also scored a SIP panel to box the cyclone in.
The SIP panel was a 2400 x 1200 x 90mm foam with 5mm fibro on each side.
Ive cut this up and will be seating it on a form ply box with both butting up on the brick wall.
Probably add a 100mm foam lid and maybe even an internal foam collar on the cylinder above the cone to trap the noise in the SIP panel area.
The ply box will have a door to access the waste bin.
Any thoughts on this ?
H.Jimcracks for the rich and/or wealthy. (aka GKB '88)
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