Indoor filter

Hardware settings, adjustments and fixes and other hardware discussion. This includes the "doHICky" Laser Power measurement system by Russ.
Cam Mayor
Posts: 2
Joined: Fri Oct 07, 2016 9:00 am
Location: Winnipeg, Manitoba, CANADA

Indoor filter

Post by Cam Mayor » Wed Oct 12, 2016 7:42 am

Has anyone tried one of these "indoor gardening" filters for indoor use. I am currently venting outside from my basement but with winter coming I either have to shut it down or find an alternative. I would be mostly engraving cast acrylic.
https://www.amazon.ca/dp/B00ZPSXBMQ/ref ... eae106b8_S
The price of these is very reasonable if they work, I have my doubts though if it will do what I need it to do.

I would like to build my own filter box but am having a hard time finding reasonably priced bulk activated charcoal.
K40 with LO X7 DSP
Homemade 1200 X 900 100W with Trocen AWC708 lite

Doug Fisher
Posts: 464
Joined: Sat Aug 20, 2016 12:42 pm
Location: Atlanta, Georgia, USA

Re: Indoor filter

Post by Doug Fisher » Wed Oct 12, 2016 9:50 am

Check Sawmill Creek's laser forums. Search for the threads on DIY home filter system. There are notes there about companies that sell activated charcoal suppliers. Some of those guys have built well-functioning DIY systems.
80 Watt 700mm x 500mm Ke Hui KH-7050 Laser (Similar to the Red Sail),T.R.
LaSea/EFR F2 Series laser tube, RuiDa RDC6442G EC controller, 2" lens, RDWorks v8.01.18, CW 5000 chiller, Chuck type of rotary attachment
Doug

Trevor Johansen Aase
Posts: 23
Joined: Sat Nov 26, 2016 8:13 pm
Location: Saskatchewan, Canada
Contact:

Re: Indoor filter

Post by Trevor Johansen Aase » Sat Dec 03, 2016 10:48 pm

I came here to ask the same question. Winter up here is -40c and I can't even keep the laser in the garage for fear of freezing.

I cut out a plywood fake window and insulated it and am thinking about putting the blower in a box outside under the deck. My only issue so far is how to close off the system to eliminate back drafts when not in use. I tried a dryer vent backdraft valve and it was worthless.
Machine
  • 40W K40 Analog Dial Style Machine.
  • DRV8825 Stepper drivers with GRBL v1.1 on Arduini Uno.
  • Redi-rod adjustable bed on aluminum vent grating table.
  • 255mm x 300mm with T.L. home.
  • Sketchup => Corel Draw x6 => Visicut (linux)
Trevor JA

Doug Fisher
Posts: 464
Joined: Sat Aug 20, 2016 12:42 pm
Location: Atlanta, Georgia, USA

Re: Indoor filter

Post by Doug Fisher » Sun Dec 04, 2016 9:00 pm

I can't remember the name but I have seen a gate, maybe called something like a blast gate, that you attach to your piece of plywood which has a sliding metal plate that is supposed to do a very good job of stopping all airflow in a duct at that point. You just slide the plate/gate in or out to open up or close off the airflow.
80 Watt 700mm x 500mm Ke Hui KH-7050 Laser (Similar to the Red Sail),T.R.
LaSea/EFR F2 Series laser tube, RuiDa RDC6442G EC controller, 2" lens, RDWorks v8.01.18, CW 5000 chiller, Chuck type of rotary attachment
Doug

Doug Fisher
Posts: 464
Joined: Sat Aug 20, 2016 12:42 pm
Location: Atlanta, Georgia, USA

Re: Indoor filter

Post by Doug Fisher » Sun Dec 04, 2016 9:03 pm

There are two of them shown in the bottom right corner of the picture, below the curled vent tubing.

http://www.harborfreight.com/dust-colle ... 93601.html

I have seen them sold separately elsewhere.
80 Watt 700mm x 500mm Ke Hui KH-7050 Laser (Similar to the Red Sail),T.R.
LaSea/EFR F2 Series laser tube, RuiDa RDC6442G EC controller, 2" lens, RDWorks v8.01.18, CW 5000 chiller, Chuck type of rotary attachment
Doug

Trevor Johansen Aase
Posts: 23
Joined: Sat Nov 26, 2016 8:13 pm
Location: Saskatchewan, Canada
Contact:

Re: Indoor filter

Post by Trevor Johansen Aase » Sun Dec 04, 2016 10:28 pm

Ahh, dust collection "blast gates" is what I know them as.

http://www.leevalley.com/en/wood/page.a ... 2401,62617

I will pick up one of those $7 suckers and try it out next weekend hopefully. I am hoping I do not need to remove the hose and plywood and put the window back in every time I want to use the machine.
Machine
  • 40W K40 Analog Dial Style Machine.
  • DRV8825 Stepper drivers with GRBL v1.1 on Arduini Uno.
  • Redi-rod adjustable bed on aluminum vent grating table.
  • 255mm x 300mm with T.L. home.
  • Sketchup => Corel Draw x6 => Visicut (linux)
Trevor JA

sebastien laforet
Posts: 148
Joined: Wed Sep 07, 2016 3:23 am
Location: Lyon, France

Re: Indoor filter

Post by sebastien laforet » Mon Dec 05, 2016 3:24 am

Trevor Johansen Aase wrote:I am hoping I do not need to remove the hose and plywood and put the window back in every time I want to use the machine.
even if it prevents cold air to get indoor when not using the machine, you have also to construct an air entry for when the machine is running... and it will definitely be better if you have a dedicated vent for this, or else your room will be in depression and outside air will get it by whatever means it finds.

one solution for not colding too much your room would be to have an air inlet in the window/wall, and some tubing to bring it to the machine directly, and then the air exhaust directly to outdoor, so your (relatively) warm air in the room is not expelled during the first 5 minutes of machine work.
Sébastien Laforet
machine : Bodor BCL-0605 (60x50) with 100W laser with TR origin.
Live in France
Primarily works laser for my wife (school teacher, so lots of boxes, letters, puzzles, ...) and miniature scenery (32mm scale : warmachine, infinity)

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Keith Sherwin
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Country: Canada
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RDWorks Version: V8.01.23
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Re: Indoor filter

Post by Keith Sherwin » Tue Dec 06, 2016 8:42 am

Trevor, I am thinking in your area you would be best to look at a charcoal filter. When it gets that cold, you would be getting a fair amount of heat loss. I am currently stuck in a blizzard in southwest Manitoba with -20 heading our way. I certainly would be interested to know if you find a good Canadian source. However, at home, I am so close to the border I can easily get it sent from the USA and we don't get as cold as you do. Still, I have to heat my shop to keep the laser from freezing.
69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.22 on W7 Pro
Lead in creation of the RDWorksLab English Manual.
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I'm not fat, I'm just... easier to see.

Trevor Johansen Aase
Posts: 23
Joined: Sat Nov 26, 2016 8:13 pm
Location: Saskatchewan, Canada
Contact:

Re: Indoor filter

Post by Trevor Johansen Aase » Tue Dec 06, 2016 4:21 pm

You guys got quite a bit of snow. In Saskatoon we can still see green grass :p

I will look back into the "gardening" filters. I know a aquaponics supplier in Calgary that imports stuff. Will let everyone know if I find anything reasonable.
Machine
  • 40W K40 Analog Dial Style Machine.
  • DRV8825 Stepper drivers with GRBL v1.1 on Arduini Uno.
  • Redi-rod adjustable bed on aluminum vent grating table.
  • 255mm x 300mm with T.L. home.
  • Sketchup => Corel Draw x6 => Visicut (linux)
Trevor JA

Trevor Johansen Aase
Posts: 23
Joined: Sat Nov 26, 2016 8:13 pm
Location: Saskatchewan, Canada
Contact:

Re: Indoor filter

Post by Trevor Johansen Aase » Sat Mar 04, 2017 12:52 pm

Just wanted to share a Canadian vendor list to built the laser fume extractor from Instructables.

https://www.instructables.com/id/CANADA ... Extractor/

This thing REALLY works. I have my K40 in the basement and the wife's craft room down the hall and she said she smelt nothing at all!
Machine
  • 40W K40 Analog Dial Style Machine.
  • DRV8825 Stepper drivers with GRBL v1.1 on Arduini Uno.
  • Redi-rod adjustable bed on aluminum vent grating table.
  • 255mm x 300mm with T.L. home.
  • Sketchup => Corel Draw x6 => Visicut (linux)
Trevor JA

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