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Cutting into a late 80's era Uni for dust collection

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Forum topic by ScottKaye posted 500 days ago 550 views 0 times favorited 9 replies Add to Favorites Watch
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ScottKaye

251 posts in 535 days


500 days ago

Topic tags/keywords: dust collection unisaw

I recently caught the HF 2hp dust collector on special for $159 so now comes the task of figuring out how to hook it up to my 1987 era Unisaw (34-802 type 1). Since the DC has 4”ports Ive settled on using a matching 4” connector on the lower back of the Uni. My question is.. What is the best/cheapest way to make a circular cut into the side of the Uni’s cabinet.

-- "Nothing happens until you build it"


9 replies so far

View Fred Hargis's profile

Fred Hargis

1609 posts in 1076 days


#1 posted 500 days ago

That may depend on the tools at hand. But the first thing I would consider would be an orbital jig saw with a metal cutting blade. A 4” hole saw would do a much cleaner job (probably) but I would guess most of use don’t have one handy…I know I don’t.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View Brandon's profile

Brandon

4135 posts in 1534 days


#2 posted 500 days ago

Does it have to be round? I’m not a dust collection expert but I have seen the four inch table saw hoods that cover a rectangular or square cavity. For example: http://www.rockler.com/product.cfm?page=16972&rrt=1

-- "hold fast to that which is good"

View needshave's profile

needshave

150 posts in 542 days


#3 posted 500 days ago

Good luck with that. I have had my uni since new, it’s an 87, I have attempted several things to effectively pull the dust from the bottom side of the saw, using the door as the entry. (I did not want to cut an unnecessary hole)I have found nothing really very successful other than making a inclined plate in the bottom that allows the dust to fall forward to the entry way where I have a dust port. It works to a degree, but only to a degree. The most effective way to control dust on my Uni was with overhead dust collection on the saw blade guard.

You may want to campaign your concept to others here, maybe it will be fine and I’m doing something all wrong. Which is very possible.

View ScottKaye's profile

ScottKaye

251 posts in 535 days


#4 posted 500 days ago

I just checked Home depot, they have a Milwakee 4” bi-metal blade for $20 add another 15-20 for the arbor. Maybe Ill go that route.

-- "Nothing happens until you build it"

View Shawn Masterson's profile

Shawn Masterson

1221 posts in 531 days


#5 posted 500 days ago

scottkaye do you mean a hole saw ? without building a shroud around the blade/trunion all you will achieve is to stop accumulation in the bottom. if you go to bill Pentz’s page you will find all the info you will need. even the mods to make the HF DC the best it can be.

http://billpentz.com/woodworking/cyclone/index.cfm

View Wdwerker's profile

Wdwerker

331 posts in 816 days


#6 posted 500 days ago

Great article in Fine Woodworking on adapting tablesaws to dust collection. The key thing I picked up from it was slots for air intake near the motor, blade/arbor and low to direct airflow across the floor and sweep dust to the outlet.

-- Fine Custom Woodwork since 1978

View hairy's profile

hairy

1969 posts in 2115 days


#7 posted 498 days ago

Have you seen this? http://lumberjocks.com/topics/32760

Here’s my 89, type 2. I don’t know if that dc is factory or homemade. It was that way when I bought it. It does not function very well.

-- brown shoes don't make it...

View Cosmicsniper's profile

Cosmicsniper

2199 posts in 1741 days


#8 posted 498 days ago

Mine’s a type 2 from 1992…here’s my modification built into the motor cover.

-- jay, www.allaboutastro.com

View ScottKaye's profile

ScottKaye

251 posts in 535 days


#9 posted 498 days ago

thanks guys for all your input.. love all the ideas..

-- "Nothing happens until you build it"

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