From: Boz (CHEDDARHEAD) [#49]
4 Apr 2007
To: ALL
Holly, there are a number of manufactures that make a 1 hp. exhaust blower that will work really well with your Mini. Most of these are sold as dust collection units. most have a 4" dia. inlet and a 4" dia. outlet. We have tried amny of them and they all seem to work fine. Grizzley Industrial, Delta, Harbor Freight, Penn Industries to name a few. You can usually get into almost any of these units for $150 to $ 200. And they are all pretty quiet.
As important as the cfm rating of the exhasut blower is the static pressure rating of the blower. Do not get anything with less than 6" of static pressure. Moving air is important, but the pressure to move that air is every bit as important.
From: Hermes (HERMESSANDOVAL) [#50]
5 Apr 2007
To: Nick (NICKIONPOE) [#17] 5 Apr 2007
Well Nick it's not much of a device but a bunch of precautory measures. First off you need to get your blower to a service and repairs workshop for venting and extraction devices so they can level the blade on it, this reduces noise greatly, and extends the life of your blower. Also make sure al the parts that come in contact with the blower have proper friction reduction mechanism, i use tire rubber in the floor and polyurethane foam for the holes in the walls. I attach images for those two, nevermind the dust, the blowers for the four laser machines i have here are in a secluded room with the air compressor, we call this (guess what!) the machine room. The room also has the walls covered in styrofoam to reduce the noise even further, like you would in a recording studio.
As far as i know the length of the pipes or the distance between the laser system and the blower is not a factor for noise reduction, it might be for odors though.
I hope this is useful for you.
p.s. I already found a provider for the vacuum pump, the high precission gas pressure regulator and the mix of gases to refill the laser tube, a coherent diamond g-50. The gas pre-mix is 4.5 percent CO2, 13.5 percent N2, and 82 percent He. We wont be working friday and saturaday, meaning I'll get to work on it on sunday. I'll keep you posted on that.
From: Hermes (HERMESSANDOVAL) [#51]
5 Apr 2007
To: Holly (GRIZGIRLS) [#37] 5 Apr 2007
Holly, i have a 1.5 hp exhaust blower for both the ULS25E and ULSX50 but for an Epilog mini looks like an unnecesary roughness.
From: Harvey only (HARVEY-ONLY) [#52]
5 Apr 2007
To: Hermes (HERMESSANDOVAL) [#51] 9 Apr 2007
The more airflow the cleaner the machine and especially the cleaner the optics.
I use a 1.5 HP chip collector for my NH Optima laser. 30' run to the blower then about 10" to the outside. Unfortunately most of the run is in flexible tubing, goes around more things in the ceiling than you can imagine. It still sucks. (That is a good thing!)
EDITED: 5 Apr 2007 by HARVEY-ONLY
From: Dave Jones (DAVERJ) [#53]
5 Apr 2007
To: Holly (GRIZGIRLS) [#48] 5 Apr 2007
Holly, my exhaust system is different than most, and was far too expensive for most situations.
I'm located in the second floor of a brick building in the center of a small historic town. There are a mix of apartments and businesses here and the slightest smell of burning wood or plastic will cause a panic (the town burned to the ground in the late 1800's so the fire department is on a hair trigger).
I also couldn't modify the building, but the room I use for the laser already had an exhaust vent (low power) in the wall from when it was a restaurant prep room a few decades ago. So I bought a large filtering system that has an electrostatic smoke and particle remover followed by a 3 stage filter/blower. The two units together cost over $4,000, but they remove all smoke and fumes while providing the needed air flow for the laser. The output of the filter just comes out into the same room, a couple of feet under the wall exhaust, which slowy pushes the air outside.
The plates in the electrostatic filter have to be cleaned all the time, but they catch so much smoke that the HEPA and charcoal filters in the other unit last quite a long time.
But this is not the normal type exhaust system most laser folks use. It's a special case.
From: Holly (GRIZGIRLS) [#54]
5 Apr 2007
To: Dave Jones (DAVERJ) [#53] 5 Apr 2007
Dave - I've got one response...whoa!
From: Holly (GRIZGIRLS) [#55]
5 Apr 2007
To: ALL
Well I just got off the phone with Epilog...
They advise that my Penn State Industries blower - 1 1/2 HP; 850 CFM - is ideal for a mini. However, he confirmed that Penn State makes the loudest blowers in the industry.
I asked about the inline blowers. He advises they could work but as someone in this thread said earlier, higher CFM is better as it helps the mini keep clean. So I'd need to keep that in mind when considering an inline...higher CFM ones are more cost than I'm interested in spending right now.
So I've come full circle from last night...we're back to the re-work of the venting from the existing exhaust to the outside. God knows I have enough PVC piping on the deck that's been there all winter just itching to get installed! Epilog did suggest we insulate all that piping too. We'll see.
So thank you to all for your thoughts/input! I'll let you know how we make out!
From: PenTrophy (PENINSULATROPHY) [#56]
5 Apr 2007
To: Holly (GRIZGIRLS) [#55] 5 Apr 2007
I think this was one of our better discussions.... Hardly got off topic and everyone had good solutions to their individual situations...
My shop is loacated in general business area and the quiter the fan the better for all..... Hard to believe Epilog could not refer a company with a quiter blower.....Insulation would not be a solution in my area.
Dr.s upstairs, Insurance agents nextdoor and computer repair on the other side.............
Be safe working in the attic..........
From: Boz (CHEDDARHEAD) [#57]
5 Apr 2007
To: ALL
Holly, I might have a solution for you. IF you want to PM me, I will let you know. It involves a 3 stage filtration system with a blower on it. Nice and quiet, and the neighbors probably won't smell anything. (I would use it here, but I don't want to make my neighbors that comfy!.
From: Holly (GRIZGIRLS) [#58]
5 Apr 2007
To: PenTrophy (PENINSULATROPHY) [#56] 5 Apr 2007
I agree - it's great to hear the different site configurations people are using out there!
From: Holly (GRIZGIRLS) [#59]
5 Apr 2007
To: Boz (CHEDDARHEAD) [#57] 5 Apr 2007
I just sent you a PM! My husband is home and wants to hear what you've got!
From: Tom (TJGEENEN) [#60]
6 Apr 2007
To: laserman [#1] Unread
Mike, how does this threat relate to a Versa Laser 30 watt. I also have a Penn State 1 1/2 hp. blower. Is that over kill? Can I get a smaller, quieter blower?
From: laserman (MIKEMAC) [#61]
6 Apr 2007
To: Tom (TJGEENEN) [#60] 6 Apr 2007
Tom,
I am not sure what you mean by "Threat" we use this brand and they are very quiet when all connected.
As it has been mentioned more is better when it comes to exhaust. I could never understand why people spend 20K on a laser system and then did not want to get the proper exhaust set-up.
http://www.sears.com/
Do a search for item #00921335000
EDITED: 6 Apr 2007 by MIKEMAC
From: Tom (TJGEENEN) [#62]
6 Apr 2007
To: laserman (MIKEMAC) [#61] 6 Apr 2007
Ooops...my typo, I meant thread not threat. Thanks for the info.
From: sprinter [#63]
6 Apr 2007
To: laserman (MIKEMAC) [#61] 6 Apr 2007
Mike,
They are made by Delta. You can get the same unit at Lowes under the Delta name for $119.95. I use a couple for my wood working equipment.
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