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Thread: DC for Single Machines
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4th March 2020, 07:28 PM #1
DC for Single Machines
I want to set up a DC to use on the only two electron burners in my workshop, a 12 inch Jet thicknesser & my Woodfast combo saw/jointer. The thicknesser has a 100mm round port & the Woodfast has a 75mm x 105mm port on the saw and a 120mm x 200mm one on the planer.
SAM_0674 (720x1280).jpg
As both machines are on mobile bases & wheeled out when I use them, I'm planning to connect one machine at a time to the DC with 1-1.5m of 4" flexi hose. Would a 1HP unit do the job, or would I need to go up to a 2HP one? The only ones available near me are these 530637 | Dust Collector 2Hp China 1300 cfm | Toolex & 530636 | Dust Collector 1Hp China Fm230 Dust Extractor 700 CFM | Toolex from Gasweld.
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4th March 2020 07:28 PM # ADSGoogle Adsense Advertisement
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4th March 2020, 07:42 PM #2
check out gumtree, I think theres a couple 2HP in your area. dont bother with the GMC though
I would love to grow my own food, but I can not find bacon seeds
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4th March 2020, 07:50 PM #3.
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The 1HP DCs are just not going to cut the mustard.
The 2HP DCs in stock form using 100mm ducting will appear to catch most of the dust but what they will not do is capture the fine (ie most significant in terms of health) dust, made by these machines. You won't even see this fine dust so cannot tell by looking if it's being captured.
Things to consider;
1) Do you want to capture the majority of the fine dust using only the DC the DC - if so
- The 2HP DC will need to be modified to utilise 6" ducting using the method described in the Sticky Thread at the top of the dust forum.
- Then 6" ducting and flexy will be needed
- The machine dust ports will need to be opened up to about 6" or equivalent to allow enough air through the machine to seep up the dust
- Leaving you DC inside the shed is not a good idea as they leak fine like sieves, especially those towed around inside sheds. To avoid this problem the Dc should be located, or enclosed in an air tight cupboard, and vented outside the shed.
- Yes, it's a bigger than "Ben Hur" undertaking, and I'm sure you're very pleased to hear this.
2) How often do you these machines? If its only a few hours a week then here is an alternative
- Use the 2HP DC in its stock form (100 mm hoses) to catch the visible sawdust dust
- Install some exhaust fans that can be run continuously to vent the shed of fine dust. These should be installed on the wall opposite a major opening in the shed eg door or large window.
- The fans should evacuate about 20 shed air volumes per hour. Yes this sounds like a lot but if you can only afford 10 shed volume changes per hour that will be better than none.
- These fans should be switched on as soon as you start making any dust and be left on until you leave the shed for the day.
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4th March 2020, 09:25 PM #4
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4th March 2020, 09:41 PM #5
Hafco dust extractor
$150
Hafco 100mm dust extractor Mod DC2 500cfm
Ad ID 1242803917
gumtree I typed in Macksville dust extractor <500k I think your somewhere up NSW coastI would love to grow my own food, but I can not find bacon seeds
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4th March 2020, 09:42 PM #6GOLD MEMBER
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as someone who's getting rid of a 1hp machine (I too only use machine at a time) don't buy one.
get a 2hp machine at a minimum.
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4th March 2020, 09:50 PM #7
Bob, firstly go wash your mouth out, the Woodfast is a classic & won't be getting modified.
Venting the shed with exhaust fans isn't feasible, 100 square metres & 4m to the eaves, which are open. Woodwork is only one of my hobbies & I mostly use hand tools, so the machines only get used occasionally, so I can't justify spending a lot. I just need to suck up as much dust & chips as possible & I'll be wearing a powered half face mask https://www.timbecon.com.au/half-fac...-dust-mask-kit.
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4th March 2020, 10:04 PM #8
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4th March 2020, 10:41 PM #9.
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I really do like some old machines but I've spent considerable time working with two woodfasts and I don't think that much of them.
We had one at the mens shed that I helped do up but after watching a member slice his fingers open I was glad they moved it on.
7 years ago I was given for free, a full woodfast combo machine with all the attachments; BS, lathe, and the big baffle box dust extractor.
I was really excited when I got it and we used it down at the milling yard for about with a year but eventually I had to admit I was distinctly underwhelmed, especially with the attachments. I then sold off the attachments as I was really only interested in the saw and was seriously thinking of doing it up to replace the Chinese TS in my shed but I'm glad I didn't and. As the saw hasn't been used it for ~5 years am now thinking about giving it away.
Venting the shed with exhaust fans isn't feasible, 100 square metres & 4m to the eaves, which are open. Woodwork is only one of my hobbies & I mostly use hand tools, so the machines only get used occasionally, so I can't justify spending a lot. I just need to suck up as much dust & chips as possible & I'll be wearing a powered half face mask https://www.timbecon.com.au/half-fac...-dust-mask-kit.
The really easy way to vent a big shed is to find a big old swampy and just run the fan. The swampy with fan only, vents the mens shed (150m^4 and 4m to the eves) in a couple of minutes and of course come in real handy for more than just dust control.
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5th March 2020, 07:13 AM #10
fair go Bob, we offer advice and get spat at. think the fire & rain has affected him.
have a nice day woollybuggerI would love to grow my own food, but I can not find bacon seeds
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5th March 2020, 07:23 AM #11SENIOR MEMBER
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5th March 2020, 07:31 AM #12GOLD MEMBER
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5th March 2020, 08:25 AM #13GOLD MEMBER
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62woolybugger in your shoes or flipflops I would get the 2hp and use a 6" hose. For the table saw hot form a PVC adapter for 4" hose and use a second hose from a wye fitting off the 6" to a blade guard over the blade You can keep the classic guard on the wall for show. Or at the very least fit the second hose with a bell mouth hood beside/over the classic blade guard to get that dust. The jointer side can also have a PVC adaptor formed with heat and/or glued on extras using the full 6" hose. The planer also gets a 4" hose and a second hose+bell mouth in front/behind/above to grab more air. You are going to wear the mask and will need it as those bags are probably poor at filtering anything fine. From the picture it looks like you can open the garage door to clear the air after/during the work depending on where the neighbours are. With the 2 hp you could at a later date modify it for better flow and put it outside if you dedicate your cutting/jointing/planing to a specific spot.
Pete
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5th March 2020, 10:08 AM #14.
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No fire and rain here, maybe an early case of COVID19?
I'm sorry if I came across a bit negative.
Folks are entitled to do and what they like, likewise, others can disagree and I was hopefully just relating my experiences with those machines.
I'm not anti old machines provided they deliver in terms of performance and safety, and if not, then I have no qualms about bringing them up to spec even if that changes their looks.
I have two ~55 year old metal working machines, and another that is about 45 years old, plus 2 grinders that are around the same vintage.
However, I don't usually compromise on safety, just like I wouldn't use an old car as my daily drive without seat belts.
In my book "safety" should trump "looks", which is why I often refit old machines with "no volt" switches, better guards and state of play dust extraction etc.
An example at the mens shed was to fit a 65 year old Nolex radial arm saw that ran for over 120s after it was turned off with a VFD and brake to reduce the stopping time to about 4s. Although it was not used that much, that saw was a significant contributor to shed wood dust so I fitted it with a 6" dust hood and a pressure switch so it would not start unless the DC was on and the relevant gates open.
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5th March 2020, 09:43 PM #15
Thanks for the advice guys, I'll check out the 2HP one at Gasweld tomorrow. I'll have to keep it mobile, as it's just not practical to put it in a fixed location & run ducting. I would only use the machines once every month or so, so it won't be moved around a lot.
I'll probably set it up with two 100mm hoses for the Woodfast, one to the outlet port & the other to a bell mouth near the blade & cutter head. I can open the shed up & put a fan behind me as there's only the river on that side. I know it's not the best sutup, but it's a lot better than noyhing. It would be nice to have a big DC outside the shed with ducting coming in, but for the little use it gets, I can't justify the expense.
Bob, I have a solution for wearing the mask when it's hot & humid, I go to the beach or go fishing.
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