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Thread: DC Bag Modification
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4th February 2019, 02:32 PM #1SENIOR MEMBER
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DC Bag Modification
Hi Guys,
I hate changing dust bags on my DC (2HP Carbatec). At the same time I am looking to wall mount it to get some room.
I was wondering whether I should use the opportunity to put in a cyclone which will remove most of the dust and will allow me to mount the filter out of the way with a very small bag.
My thinking re:cyclone is more for convenience that anything else.
I guess another option would be to make a bin attachment instead of bags.
Any clever ideas on a replacing the bag with a bin ?
Also, if you think I should just use a cyclone, any recommendations?
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4th February 2019 02:32 PM # ADSGoogle Adsense Advertisement
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4th February 2019, 03:01 PM #2.
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What HP is your DC?
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4th February 2019, 03:11 PM #3SENIOR MEMBER
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4th February 2019, 03:33 PM #4
Pach, these are the mods I made, and they work so well ...
1. A Superdust Deputy (this is a copy - impossible to get them in Oz) may reduce the suction a little, but I keep the 5" hoses short. Lots of room for improvement here (see Bob's list). Still, the convenience makes up for this.
2. I replaced the bag with a steel bin. One of the plastic bags was used to connect the two. The steel belt around the drum keeps the seal tight. The transparent bag let me see if there is anything in thuere. It is important to keep the SDD bin under 2/3 full. More than this and it loses suction, which is when dust and chips flow to the collector.
The machines that feed the DC are a Jointer/Thicknesser, Table saw, and bandsaw. I have a few other additions here - for another time if there is interest.
Regards from Perth
DerekVisit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.
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4th February 2019, 04:25 PM #5SENIOR MEMBER
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Thanks Derek, the clear bag and the drum is the sort of thing I was after. I was trying not to over complicate it.
Do you recall where you got the Cyclone from ?
Also, what is the rough height and diameter of it please? I seem to be able to find smaller ones on fleabay but not sure if they are similar sizes to your one.
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4th February 2019, 07:33 PM #6GOLD MEMBER
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4th February 2019, 09:54 PM #7Junior Senior Member
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Does anyone know if you can get a cyclone with 6” inlet & outlets?
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6th February 2019, 07:18 PM #8
Pach, the cyclone came from Aldav. After trying to find the genuine article in Oz, I gave up and purchased the clone. It looks identical to my eyes, and works extremely well. The inlet is 5" and the outlet 6" (or vice versa).
Dimensions off the Oneida site (EDITED to correct size):
Width 15" Depth 17" Height 27"
Does anyone know if you can get a cyclone with 6” inlet & outlets?
John, Oneida sell a version with 6" in- and outlets. The clone cost (Edit: after converting USD to AUD) is about the same as this a few years back but shipping from the USA is the killer.
Regards from Perth
DerekVisit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.
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6th February 2019, 09:23 PM #9GOLD MEMBER
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Specifications of the clone are:
Diameter of the top of the cone is approx 390mm and height including the suction outlet is approx 700mm. The suction inlet is 125mm and the suction outlet is 150mm. The size that Derek has quoted above is for the XL Oneida Super Dust Deputy. Derek's right about the freight cost, anything bigger than the standard version costs exponentially more to freight even though they weigh bugger all. The Oneida XL version with 6" inlet and outlet is significantly bigger than the standard version.
As many of you would know I'm winding up my business. I don't have any of these left and I'm not getting any more. I'm pretty sure the $239 for the XL on Oneida's site is US$ NOT AUD.
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7th February 2019, 12:23 AM #10SENIOR MEMBER
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Last month I purchased an Oneida Super Dust Deputy (125mm inlet, 150mm outlet) from the U.S.
The price was AUD $234.86 for the SDD and $101.10 for freight and tax. Total price $335.96.
Delivery was U.S. priority post, it arrived in just over a week.
Regards
Keith
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7th February 2019, 12:31 AM #11SENIOR MEMBER
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I have just checked, I ordered the Super Dust Deputy on Jan 8th and it was delivered on Jan 18th.
I ordered it on Ebay from Supplykick317
Regards
Keith
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7th February 2019, 08:47 AM #12
and could the inlet be modified to 150?
I would love to grow my own food, but I can not find bacon seeds
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7th February 2019, 10:38 AM #13SENIOR MEMBER
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I don't think that you could modify the 125mm to 150mm, you would need to look for a 150mm in and out.
Otherwise use a 125mm suction line and 150mm exhaust.
I have used a 2 metre x 150mm exhaust line through the end of my shed without a filter to reduce back pressure.
Regards
Keith
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7th February 2019, 11:01 AM #14.
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I don't want to sound like a broken record on this, but just for the record in this thread, using cyclones like those on a small (Low pressure, high volume) DCs may reduce your flow by as much as 40% compromising your fine dust collection. You won't see much or anything as it's all invisible dust.
Cyclones need to be aerodynamically matched to impellers to even come close to minimising loss of flow but even then there are no free lunches.
For example the Clearvue cyclone is aerodynamically designed cyclone and is one of the most is highly optimised systems, but even that loses about 20% of its flow - this is why their cyclone systems use 15/16" impellers and 4HP motors - they have so much suck to start with they can afford to lose some and still clear fine dust.
Derek's setup needs to consider his particular situation, he is a major hand tool user and his shed has excellent ventilation so it may not transfer to other peoples situations.
FWIW the floor sanding dude that did our floors had one of those SDD cyclones on his "industrial vacuum cleaner" attached to his large floor sanders. During the 20 odd hours of sanding he did at our place he went over OHS dust levels for about 1/2 hour. But remember, this was a vacuum cleaner (High pressure - low volume) and not a dust collector. Vacuum cleaners have a lot of sucking pressure (but not much flow) so can also afford to lose some pressure without a comprise loss of flow.
He had to run the sander on one of our house 10A circuits (16A breaker) and the industrial Vac on the other 10 circuit (also 16A breaker). You could fair see the power meter spinning when he was using the 20 grit paper to flatten some of the warped floor boards
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8th February 2019, 03:04 PM #15SENIOR MEMBER
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Thank you Bob,
To clarify my situation whilst I am a hand tool woodworker, I do have a bandsaw connected to my dust extraction with a duct length of 1,100mm and a jointer connected with a duct length of 1,800mm. These machines are only used for basic preparation.
For workshop ventilation apart from the roller door at one end and a P.A. door, I run a mounted evaporative airconditioner either on cool for hot days, or on fan only at other times as necessary. I expect the airflow would be sufficient to purge any stray dust.
I do realise the importance of fine dust control, but one can only do as ones budget allows, or else give up the hobby.
Please keep up the good advice, and try not to be too frustrated when you feel that your message sometimes takes a while to get through.
Regards
Keith
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