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16th January 2018, 11:58 AM #16SENIOR MEMBER
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Hi Mel,
Don't want to write an essay so here are some dot points to your questions:
- The one I'm referring to is similar to that one but is a single phase 15 amp unit (rather than three phase) unless you have 3 phase or 15 amp power points (standard is 10 amp power points) it might not be feasible or within your budget to go down this route. Your next best option will probably be this (or similar)
https://www.carbatec.com.au/dust-con...-all-new-model
- Don't think of mobile as something on wheels, but rather something you move around as its the moving around that causes seals to slip/gaps to appear. So a 2hp unit set up in a permanant spot can also be used.
- I've found that unless your DC is exceptionally well tuned (or powerful) it'll always throw dust/chips. The advantage of having a permanent DC setup is that you can setup dust collection points under the saw as well as above the blade significantly reducing the amount of dust being thrown around and effectively leaving you with "wood chips" Chips don't cause any real threat to your lungs as they're too heavy for you to breath in. Setting this up on a mobile saw is time consuming I found that i simply wouldn't set it up if I was in a hurry.
- My wife is an avid painter/crafty/arty kind of person so I definitely understand the need for something to be aesthetic. It shouldn't be that difficult to design something to complement your shed obviously whether this fits in with your budget is another matter. However in my experience its quite important to have a DC vented outside as even though all DC's have a filter due to the very nature of them require high air flow to perform (think what comes in must come out) a filter that filters down to 0.2 micron won't perform at that level for very long. Which is why most bagged DC have 5 micron filters. Unfortunately these are the particles that will most likely cause you harm. Which is why its good to move it outside or even just the filters depending on the type of DC you have.
- Also having a portable saw has its advantages eg i made a hole in the back wall of my shed to allow me to feed wood longer than 2.5m in length, doesn't happen very often but having a mobile saw would have been beneficial. Also as handy as having an outfeed table is there are ways around it eg using roller stands like these.
https://www.carbatec.com.au/workshop...omo-pack-qty-2
I have an outfeed table but still find all kinds of uses for them
Sorry still long post but hopefully it helps.
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16th January 2018, 08:41 PM #17.
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If we are only talking filters and not leaks, the longer the filters run for the more efficient they usually become.
This is called filter conditioning.
Even a crappy so called 30 micron cloth bag once it is loaded up with dust and not disturbed can filter 80+% at 5 microns.
OTOH I have measured 30 micron cloth bags that were so flimsy tand full of fine holes that they emitted more fine dust than they collected!
How the hell do they do that ? Well, the impeller and the swirling action inside ether collection bags does a great job of mincing coarse dust into fine dust.
A typical DC with a thick type 5 micron conditioned needlefelt bag with no leaks can filter 98+% at 0.3 microns and 99.9% at 5 microns. Once again if there are leaks in the bag or the filter housing seal these will drop dramatically.
Besides leaks the other issue with filters is they eventually becomes so "conditioned' that flow rate through the filters is savagely reduced so then there is insufficient air flow and the DC simply doesn't pick up the fine dust from the source and it's left behind to contaminate the shed.
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17th January 2018, 02:49 PM #18
I'd tell you what I do but I'd get crucified here, so I won't.
MelissaC :
You are not "just a girl", your not dumb and you need not be embarrassed about anything you've done. You are learning. We have all bought stuff and one stuff we regret or would do differently second time around.
Woodworking is stupid, no logical reason to do it, so if matching tools floats your boat that's perfectly valid. Go read some of the vintage tools threads if you want to see irrational pursuits
I've had bosch for decades but I have to say I no longer defend them. Too many design mistakes and poor parts support. I favour makita now as they seem to offer better spares availability than the others, but the bosch blue stuff is pretty tuff. I've still got lots of it.
Good luck. Have funI'm just a startled bunny in the headlights of life. L.J. Young.
We live in a free country. We have freedom of choice. You can choose to agree with me, or you can choose to be wrong.
Wait! No one told you your government was a sitcom?
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