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09-16-2010 04:21 PM
09-30-2010 11:22 AM
For getting the fine dust out of the air I just use a 20"x20" box fan with a 20"x20" filter. Turn on the fan to the number 2 setting and place the filter on the intake side--the fans suction will hold it in place. If I am doing work that's generating more than usual levels of dust, I'll place a second fan/filter on the other side of the workshop so that the air circulates (and filters) quicker. When the filter needs cleaning, I use the shop vac or just bang the filter on the floor to shake out the dust. Make sure you use the pleated filters for best results.
I admit it's probably not the greatest air cleaning system, but it does the job pretty well. And if you don't have the cash to shell out for a better system, this setup will do the job till you can upgrade. If nothing else, removing saw dust from the air with this simple system still works better than removing the dust with your lungs.
10-07-2010 08:52 AM - edited 10-07-2010 08:56 AM
I used small window fans, stripped the extendable side pieces and built a narrow box with a slide in 12 by 24 by 1 furnace filter for filtration. Hung it from the ceiling with french cleats and they are wired into my shop lights. Whenever shop lights are on, the air filters are on. You can get different degrees of filters to use in them. My basement shop is 12 by 20 and there is one near each end.
12-07-2010 11:55 PM
I need some advice from my fellow woodworkers. I am building a mantel for my fireplace. The fireplace is elevated about 8" to 10" off the floor on a brick hearth. The width, including off set and pilaster width will be about 78",and the fire box is about 38" high. What would be an appropiate height for the mantel. I am 6' tall and my wife is 5' 6" tall. I guess what I'm asking is there a standard ht. for a mantel? Thanks.
12-08-2010 03:42 AM
if only new layers hadn't been added....
Forget the primal scream, just ROAR!!!
12-15-2010 08:38 AM
I too am building one of those using a furnace blower and pleated filters.
I am currently building a "sanding table". My benchtop sander will sit on top at the right, and to the left of that will be an area 5' long x 20" wide for hand sanding or for using ROS. The top of table is 2 layers of peg board supported by cross braces for strength. Three 20" filters slide in from one end, and above that is a track to slide a 19" x 48" piece of 1/4" luan as a baffle when I am using the benchtop sander, to concentrate the suction at the sander instead of all over the tabletop.
The suction is provided by a blower motor from a clothes dryer.
02-11-2011 07:20 AM
I made a similar filter using a furnace blower. You could save money by making the box a size that fits normal sized pleated filters rather than the Penn State ones. I use 20 x 20 filters ( 3 layers from very cheap washable type first to a 600 - 700 3M rating 2nd filter to a 1000 rating as final). I can vacuum several times before replacing.
03-09-2011 09:21 AM - edited 03-09-2011 09:28 AM
This post is in relation to the question about the mantel evevation... this question got stuck in with the un-related question about SHOP DUST FILTERS.
The normal purpose of a mantel is for displaying appropriate keepsakes/pictures etc. The best elevation above the f.f. (finished floor) is eye-height. In your wife's case I-HI is about 48"-60". Since the top of the firebox is pretty close to the 4' mark, it would be prudent to elevate the mantel as mych as possible to maintain a good viewing evevation for your wife.