Alan Darrell's said his set up is similar to using a fitting like a room AC ducting like this. http://i00.i.aliimg.com/photo/v31/786360790/_font_b_portable_b_font_font.jpg
PORTABLE AIR CONDITIONER WITH FLEX DUCTS - AIR CONDITIONER
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Alan Darrell's said his set up is similar to using a fitting like a room AC ducting like this. http://i00.i.aliimg.com/photo/v31/786360790/_font_b_portable_b_font_font.jpg
PORTABLE AIR CONDITIONER WITH FLEX DUCTS - AIR CONDITIONER
I sort of discuss this in post #121.Quote:
Originally Posted by Sawdust Maker
Irrespective of what is done using the existing housing these machines spill a lot of dust out of their sides so unless some air flow and hence dust capture is directed outside the housing it won't be captured.
A bell mouth hood would provide more air flow than this.Quote:
Alan Darrell's said his set up is similar to using a fitting like a room AC ducting like this. http://i00.i.aliimg.com/photo/v31/786360790/_font_b_portable_b_font_font.jpg
PORTABLE AIR CONDITIONER WITH FLEX DUCTS - AIR CONDITIONER
Check out these hoods used by the Corrimal Men's Shed
see Corrimal Community Men's Shed Cyclone Dust Collection System - Automatic Cyclone DC System
http://mastslav.weebly.com/uploads/8...90104_orig.jpg
Some improvements could be made to these hoods but I won't go into these here.
How would a couple of fans go at pushing the dust back towards the housing for capture? Wouldn't get all of it, but may help?
I would cut the side out of a length of 150mm pipe and cut the top out of the shroud and glue the two together and extract from the end of the pipe.
Unfortunately pushing dust whit a fan in anything other than ducting is like hearing cats and will just end up spreading it all over a shed.Quote:
Originally Posted by FenceFurniture
There is a place for highly directional push such as from a compressed air nozzle but that's also best done with an existing directional air flow like within a hood.
I must admit that I was coveting one of these at my daughter's the other night BUT, when my nearly 3 year old grandson told me that the aircon was the only thing stopping him from "expiring", I felt pretty guilty!Quote:
Originally Posted by wheelinround
fletty
So apart from all this sub micron dust business what's going on?
There seems to be a sub micron amount of re-organisation.
Fletty have another G&T and get back to work. (I'll have a G&T with you on the 13th. I'm quite partial to a G&T.)
Do you have a heat gun? I think I have one sitting here if you need it.
You HEAT your G&Ts :)(!Quote:
Originally Posted by NCArcher
fletty
OK, OK, so I picked myself up and got back to work. It's hard to do anything in a 43 deg shed.
I removed everything from the storage rack, lined the walls with plywood, machined and fitted French cleats and wheeled in Andy's cabinets. The old rack had a pegboard fitted on the end face but I couldn't pull it down until there was somewhere to put all the tools...
Attachment 372610
.... so I propped it up and worked around it hoping it wouldn't fall on me until I unloaded it to a new home.
Attachment 372611
The new pegboards are mounted with French cleats and the (mostly non-woodworking) tools were transferred without incident before the old peg board was allowed to fall down! That pegboard will now be used for the inner lining of the DC sound enclosure. The old saw till was hung with great ceremony on the new wall. I can still remember the days when that little ARC till held ALL of my saws :B!
Removing just that little stud wall has really opened up the old shed...
Attachment 372612
..... and restored a sense of progress?
It was a much better, even though hotter, day.
fletty
PS, do I owe anyone royalties for the use of 'French cleats' ..... Louis XIV ?
Wow, what a huge difference. We could very nearly swing a proverbial in there. The cabinets look great too. If you haven't assembled that last draw by the 13th I'm going to do it.
I'm more marveling, that so much hard work was able to be done in a 43deg shed...Alan you're a ledg...I hope you've had adequate re-hydration:rolleyes:
Quote:
Originally Posted by fletty
saves on ice!
At 43 deg its either sinking into the pool, neighbours yard or down the hill............could be it was just to much G&T giving it the impression it was at that angle.:p
Lookin good all it needs now is a large centre bench.:2tsup:
This heat takes the fun out of playing in the shed.
My fully insulated shed does a great job of keeping all the heat in.
You shed wall looks very neat. I am glad the stylish saw till found a premier position on the wall.
jealous .... i need to get mor done in mine. Running out of space
Looks good
Dave TTC
Turning Wood Into Art
I sometimes strip down to my shorts and just continue with what I was doing. No one visits me in the shed so no one to scare/shock. :UQuote:
Originally Posted by fletty
You just need a heaps bigger shed Dave :rolleyes: :UQuote:
Originally Posted by DaveTTC
Want to come and give me a hand Fletty??
31degrees, ocean nearby, cooling breezes.....:D:p
Any time mate.Quote:
Originally Posted by artme
fletty
Here hereQuote:
Originally Posted by crowie
Or is it
Hear hear
Or maybe
Hear here
Dave TTC
Turning Wood Into Art
I realised a long time ago that systems such as dust collecting have to be thought of holistically if they are to provide a benefit. If you were to have a fantastically efficient DC then it is of no real benefit IF it is too inconvenient or too loud to turn on? Just like my academic career, I'm aiming at an average pass mark for all 3, efficient, convenient and quiet. :rolleyes:
Via this forum, someone ( and I'm sorry but I can't remember who!), put me on to a 30A remote via eBay so that I can carry the control with me to ensure I do use the DC even for those 'quick jobs' AND, I can leave the DC on when I have finished for the day and can turn it off from the house after a respectable time has passed.
As for noise level, l have built an enclosure for the DC but it was only today when I started to get some idea of how quiet it would ..... or wouldn't be?
The enclosure is timber framed, acoustically insulated ....
Attachment 372905
.... and ply covered.
Attachment 372906
Today l made and fitted the door. It is double stepped and has a 50mm panel of acoustic insulation held in place with recycled pegboard.
Attachment 372907
The door was then propped into place...
Attachment 372908
.... and sound levels measured.
Without the door, with the enclosure not yet finished, no machinery running and the externally exhausting muffler not even designed ... the average sound level was 80dB.
Fit the door ...... and 75dB :hpydans2:!!!
We live close to a main road which provides a volatile ambient noise level so the real test will be tonight when I'll test the noise level inside the shed and at 3 points on the boundary as this would be representative of the noise level impacting my neighbours IF I was working at night.
Im hopeful that any increase from the external exhaust will be offset by plugging the remaining gaps in the enclosure?
fletty
What is an acceptable noise level at night
Looks a good build btw
Dave TTC
Turning Wood Into Art
When your neighbour doesn't lean over the fence with a shotgun!:oo:
Quote:
Originally Posted by DaveTTC
If you think dust collecting and sharpening raise passions, wait 'til you hear the ruckus over noise level!Quote:
Originally Posted by Chris Parks
The measuring scale isn't linear and each measurement difference of approximately 3 (3.08?) is a halving or doubling of noise level so that 83 is twice as loud as 80. The 'noisiest' measurement I've made in the shed, DC howling with no enclosure was 84dB whereas the 'quietest' measurement, 9.30pm, 10 metres from the shed, nothing running, was 62dB.
I reckon that 65dB at the neighbours fence at night and 70 during the day would be acceptable to a 'reasonable' neighbour?
fletty
I reckon 30 something people on the 13th might push the record :D Especially with some of the forumites who are coming
Hope the ceiling is being covered also other wise it'll sound like a BOOM box when sucking at full throttle with chips and shaving rattling round as the night creeps closer to bewitching hour.
I agree with Tony to a point however Tony Alan lives there they are used to him :U
Back inside after skulking around in the dark taking noise level measurements near the neighbours windows ........ :B
Current status, enclosure not yet complete, no external exhaust, no muffler, enclosure door closed;
- in shed = 75dB
- 3 metres outside shed = 68dB
- 10 metres outside shed, on boundary = 63dB
Progress inside shed
- DC in final position but completely exposed = 85dB
- DC, incomplete enclosure, no enclosure door, no external exhaust nor muffler = 80dB
- DC, incomplete enclosure, enclosure door closed, no external exhaust nor muffler = 75dB
To put this in context (sourced from Sound Meter);
- 20dB, rustling leaves, ticking watch
- 30dB, quiet whisper at 1 metre, library
- 40dB, quiet residential are, Park
- 50dB, quiet office, quiet street (says something about where I live?)
- 60dB. normal conversation at 1 metre
- 70dB, busy traffic, phone ringtone
- 80dB, busy street, alarm clock
- 90dB. factory machinery at 1 metre
- 100dB, subway train, blow dryer
- 110dB, rock music, screaming child
Of all of this, I guess the surprise is the blow dryer :roll:
fletty
So looks like you're headed the right way
Dave TTC
Turning Wood Into Art
And the world's loudest burp (unofficial though) from a Darwin gut last week.Quote:
Originally Posted by fletty
yep, straight to the Police Station for peeping tommery!Quote:
Originally Posted by DaveTTC
go to bed!Quote:
Originally Posted by FenceFurniture
There's another factor too - constancy of sound. We very quickly stop hearing a sound that doesn't change, such as a DE. That is far less intrusive than something like a conversation at the same volume, with the ups and downs of pitch, accents etc. So much so that at times I've forgotten to turn the DE off for quite some minutes after I'd finished with it.Quote:
Originally Posted by fletty
I'll bail you out Saturday week when I'm up
Dave TTC
Turning Wood Into Art
Quote:
Originally Posted by DaveTTC
Quote:
Originally Posted by Chris Parks
Hi flettyQuote:
Originally Posted by fletty
If you want to get all technical, there's this reference Page not found - Roads and Waterways – Transport for NSW
from that, one measure of "acceptable" isExisting road traffic noise exposure
A site is defined as having an “existing road traffic noise exposure” if the prevailing noise level from the existing road alignment(s) under consideration is equal to or greater than 55 dB(A) Leq(15hr) (day) or 50 dB(A) Leq (9hr)(night).
they are averages over long periods so peaks can be much higher.
I think in terms of legalities and keeping the neighbours on side, the time of the noise emmision is equally import
where does the all invasive leaf blower fit in the list of offensive noise?
To get serious, the answer varies on location. A very quite area v's say a noisy industrial area will tolerate and expect noise levels that are totally different.
WA EPA noise regs have the following limits.
LAmax - maximum allowable dBA
BUT
LA1 - max allowed integrated across 1% of assessment period (hours or days)
LA10 - max allowed integrated across 10% of assessment period ( hours to days)
Sound is measured 15 m from building where sound is being made.
In our council there is also an 2 hours (cumulative) allowance during the day for use of hand hand power tools.
We are ~300m from a highway so we struggle to meet the LA10 at any time and even LA1 for most of the time.
e.g. this morning at 6am I was measuring 52 dBA averaged over about 10 minutes in our back yard. Most of the noise was birds.
By 7am the average over 10 minutes was 65 dBA this included a plane flowing at low angle for about 20 seconds.
I have measured over 70 dBA in our back yard in the late afternoons from a combination of traffic, aircons and wind.
According to the EPA a noise can be said to be contributing to the overall noise even if it is 5dB less than the ambient noise????
So technically your neighbour can still complain if you're making a noise that is a few dB less than his - of course you can also complain about his
Attachment 372966
Pretty high. e.g. the Ryobi manual says the 2400W blower is 101 dBQuote:
Originally Posted by Sawdust Maker
One of our neighbours uses his blower on most Sundays between ~3 and 6 pm for about an hour.
The DB in my back yard is about 85 and according to the hand held power tool rule he is entitled to do this.
He also does sanding and angle grinding on his back veranda but that's quite reasonable in terms of sound.
A couple of times I have fired up my big Stihl with the modified exhaust but he hasn't taken the hint.
I don't want irritate him too much because I make many more hours of noise in my shed than he does and the leaves he is blowing mainly come from trees in our yard.
I use a broom.