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Old 12-07-2010, 08:42 PM #17
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Default Re: Fan for Argon laser

Spiffing, thanks Dave.

Have you got an estimate on the CFM for the fan?
and do you know approximate dimensions of it?

Sorry about asking you to do this, but mine is all packed up in a box

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Old 12-07-2010, 08:54 PM #18
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Default Re: Fan for Argon laser

Quote:
Originally Posted by robjdixon View Post
Spiffing, thanks Dave.
Have you got an estimate on the CFM for the fan?
and do you know approximate dimensions of it?
Sorry about asking you to do this, but mine is all packed up in a box
Rob


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Old 12-09-2010, 01:01 AM #19
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Default Re: Fan for Argon laser

IIRC you need about 220 CFM. An automotive style blower will probably work, although one with a mains voltage motor would be more convenient.
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Old 12-09-2010, 02:21 AM #20
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Default Re: Fan for Argon laser

Quote:
Originally Posted by james1095 View Post
IIRC you need about 220 CFM. An automotive style blower will probably work, although one with a mains voltage motor would be more convenient.
So you mean that a 115 CFM fan would not work with a multiline argon laser?
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Old 12-09-2010, 02:29 AM #21
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Default Re: Fan for Argon laser

Quote:
Originally Posted by Silvershot View Post
So you mean that a 115 CFM fan would not work with a multiline argon laser?
If you read the picture I posted above (which is from the manual for the 22XX series), it says to use a fan that is rated for 185CFM in free air. That means without restriction. Once the fan (rated at 185CFM) is hooked up to the laser and so has to deal with the obstruction of the slots, fins, tube, hose, etc., it should still be moving 115CFM of air.

If you started with a fan that did 115CFM in free air, it would be below that when dealing with the restrictions/obstructions of the laser.

The laser will still work fine with less air moving. It will just be running hotter. The hotter it runs, the shorter its life

People run these with less airflow all the time. However, if you want to be up to the recommended spec's of the manufacturer, you need the 185CFM rated blower.

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Last edited by daguin; 12-09-2010 at 02:32 AM.
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Old 12-09-2010, 03:03 AM #22
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Default Re: Fan for Argon laser

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Originally Posted by daguin View Post

The laser will still work fine with less air moving. It will just be running hotter. The hotter it runs, the shorter its life
What difference it would make in the life of the laser approx?
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Old 12-09-2010, 03:12 AM #23
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Default Re: Fan for Argon laser

The required airflow depends on the amount of power you run through the tube. The vast majority of power consumed by a gas laser turns into waste heat, and ion lasers are about the worst in that regard. Get it too hot and you will destroy your tube in seconds.

Have you read the argon section of Sam's laser FAQ? If not, go do that before you try powering up your new toy. Argon tubes are likely gonna get hard to come by as most of the applications that used them are being retrofitted with solid state lasers.
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Old 12-09-2010, 09:31 PM #24
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Default Re: Fan for Argon laser

Just to let everyone know, I've grabbed Rob's fan. Thanks a lot for your offers everyone

Peter

Last edited by Elektrotechniker; 12-09-2010 at 09:35 PM.
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Old 12-20-2010, 01:10 PM #25
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Default Re: Fan for Argon laser

Hi again. I just wanted to ask, what if the diam. of the vent hose is 10 cm? Rob could not find his so I had to look up to local stores but they only come in 10 cm diameter. Will it work with the laser and fan? If not directly, can I do a mod and get it to fit?
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Old 12-26-2010, 04:40 PM #26
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Default Re: Fan for Argon laser

I was doing some investigating in preparation for my ML Agron laser (Thanks again Elektro!) and found the following inline 200CFM blower - looks like it may be a good option at $75...

New 4" Inch 200 CFM Inline Exhaust Duct Fan Vent Blower - eBay (item 150536501675 end time Dec-26-10 20:39:27 PST)
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Old 12-26-2010, 08:55 PM #27
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Default Re: Fan for Argon laser

I already have one coming, or you list this for your argon?
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Old 12-26-2010, 09:08 PM #28
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Default Re: Fan for Argon laser

That one projector company to the rescue!



The fans from the 140 kick some serious butt. One of these days I'm going to make a more permanent (or "professional" looking) fan mount for these 4 fans...
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Old 12-26-2010, 09:22 PM #29
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Default Re: Fan for Argon laser

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Originally Posted by Silvershot View Post
I already have one coming, or you list this for your argon?
Yeah - I saw that you had one coming - but I thought other might be interested in this as an alternative - the Stock blower from the Schematic is quite expensive..

I may pick up this blower to test out with mine..
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Old 12-26-2010, 09:31 PM #30
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Default Re: Fan for Argon laser

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Originally Posted by Pontiacg5 View Post
That one projector company to the rescue!



The fans from the 140 kick some serious butt. One of these days I'm going to make a more permanent (or "professional" looking) fan mount for these 4 fans...
Is this really safe for your argon?
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Old 12-26-2010, 11:05 PM #31
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Default Re: Fan for Argon laser

I use regular 10cm ducting, and simply seal the edges to the fan with several wraps of electrical tape- it has not done me wrong yet!

Is your fan too big?
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Old 12-26-2010, 11:42 PM #32
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Default Re: Fan for Argon laser

Silvershot, the fans from the projectors are VERY powerful, I bet 4 of them could handle an argon. I put 4 into a box once and they generated a heap of pressure!
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