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 Post subject: Re: DIY clean chamber, v2
PostPosted: January 16th, 2015, 12:34 
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Joined: December 8th, 2010, 11:37
Posts: 482
Location: Ottawa, Canada
Hello inflex. According to this site, those filters are 99.95% efficient at removing particles 0.3um in diameter, which I think should be fine. This eBay post says they are 15.5 x 14.5 x 2.8 cm, which is rather small--you might end up using a lot of filters. If they have larger filters, I would think they would be a better choice. The fact they are only 2.8cm thick means their static resistance will be fairly high, so I'm not sure that car blower will be powerful enough to deliver the airflow you will be happy with. The thicker the filter, the lower the static pressure they present for a given filter material. You just have to experiment to find what works, because I doubt specs on static pressure are available for that motor; same for mine. Will you be using the acrylic for the body? If so, it should look really cool! For the lid/cover, I found 5mm to be perfectly adequate.

I'm looking forward to seeing your creation. If I can be of any help, don't hesitate to ask.

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 Post subject: Re: DIY clean chamber, v2
PostPosted: January 23rd, 2015, 9:17 
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Joined: May 11th, 2013, 21:08
Posts: 98
Location: Australia
LarrySabo wrote:
Hello inflex. According to this site, those filters are 99.95% efficient at removing particles 0.3um in diameter, which I think should be fine. This eBay post says they are 15.5 x 14.5 x 2.8 cm, which is rather small--you might end up using a lot of filters. If they have larger filters, I would think they would be a better choice.


I'll have a look at the filters you're using too. I was designing the hood to be able to take any sort of filter shape/size (within the limits of the hood itself) just by using a different adapter plate.

Quote:
the lower the static pressure they present for a given filter material. You just have to experiment to find what works, because I doubt specs on static pressure are available for that motor; same for mine. Will you be using the acrylic for the body? If so, it should look really cool! For the lid/cover, I found 5mm to be perfectly adequate.


Because I'm getting it all cut out of a single sheet, I'll be ending up using 10~12mm acrylic, which is going to be a bit heavy for the lid, but maybe I can change that to 6mm separately.

Do you think there's any difference in having a top->bottom compared to back->front airflow?

Enjoying watching your project here.... while the hoods might be comparatively cheap, those specialiast head-comb tools really will hurt the money-budget ( 400~600 euro! )

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I'm looking forward to seeing your creation. If I can be of any help, don't hesitate to ask.


I'll post up when things start moving along :)

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 Post subject: Re: DIY clean chamber, v2
PostPosted: January 23rd, 2015, 9:45 
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Joined: December 8th, 2010, 11:37
Posts: 482
Location: Ottawa, Canada
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Do you think there's any difference in having a top->bottom compared to back->front airflow?

There are a lot of opinions but I haven't come across any systematic analysis/testing of the benefits of one over the other. I think it comes down to personal preference or just throwing the dice. Some people find the breeze in the face bothersome after prolonged use with horizontal units. I wear glasses so it doesn't bother me.

I've tried both with version 1 of my project, and I prefer horizontal because I've seen particles fall onto the platters with vertical when I accidentally touched my head to the cover while peering closely at the drive. With horizontal and good air flow, I believe that is less likely to happen.

Agreed, re. the cost of head combs. Thanks for the update on your project; looking forward to pictures. Good luck!

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 Post subject: Re: DIY clean chamber, v2
PostPosted: March 20th, 2015, 9:24 
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Joined: November 10th, 2011, 9:36
Posts: 19
Location: A Coruña/Galicia/Spain
Wooow!!! :shock:

Very very nice job!!! :idea:

Thank you for sharing! :D


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 Post subject: Re: DIY clean chamber, v2
PostPosted: March 20th, 2015, 10:03 
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Joined: December 8th, 2010, 11:37
Posts: 482
Location: Ottawa, Canada
Thanks, xose_maria. I'm still waiting for others to post pictures of their efforts.

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 Post subject: Re: DIY clean chamber, v2
PostPosted: March 20th, 2015, 10:22 
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Joined: September 4th, 2012, 8:19
Posts: 77
Location: Dominican Republic
Nice, how much it cost you to build? how long you`ve spent on it?

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 Post subject: Re: DIY clean chamber, v2
PostPosted: March 20th, 2015, 11:02 
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Joined: December 8th, 2010, 11:37
Posts: 482
Location: Ottawa, Canada
DRforensic wrote:
Nice, how much it cost you to build? how long you`ve spent on it?

Thanks! It cost me $275 CAD and about 12 days of part-time effort to build. The parts list and individual costs are in the first post. The cost does not include the cost of a high-pitch blade (for especially smooth cuts in plywood) for my 7 1/4" saw, because it will be used for other purposes. Just as the cost of my drill, etc. are not included.

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 Post subject: Re: DIY clean chamber, v2
PostPosted: May 16th, 2017, 15:10 
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Joined: May 3rd, 2017, 23:44
Posts: 3
Location: england
not sure which one would be best to reply on, but how have you found using this over the last 7 years etc ?
does it still do the job or have you improved/purchased the big boxes?


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