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Don't laugh... it's actually working quite well (DC to SCMS)

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Forum topic by Mainiac Matt posted 03-12-2012 03:00 AM 2079 views 1 time favorited 14 replies Add to Favorites Watch
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Mainiac Matt

4311 posts in 1047 days


03-12-2012 03:00 AM

Topic tags/keywords: scms dc dust collection miter saw hood

I’ve read up quite a bit and the consensus seems to be that getting a functional hood and plumbing DC to the SCMS can be a real stinker.

I’ve started designing my own customized version of the FWW SCMS cart, but I really needed something hooked up to this saw now…. as it has been my biggest messs/cloud maker. So I found a member who used a plastic storage bin, but then found that I had a waste basket that fit over the back of the saw with a close fit.

The bottom of the saws slide mechanism had enough meat for me to drill and tap two 1/4-20 holes, so that I could bolt the “hood” directly to the sliding saw head. Then I mounted the hood so that I could slide the head all the way in and out, using tie wraps to better secure the hood at the top.

I mounted a 4” hose flange to the bottom of hood and put a T in my 4” line, splitting off a Schop Vac hose, plugged into the 1-1/4” port on the saws blade shroud.

The saw can rotate the full range of motion left and right, and as noted the slide can go all the way in and out.

The head can not be tilted, however without cutting the tie wraps at the top.

But the proof is in the putting…..

I made about a dozen cuts in red oak yesterday and there was NO pile beneath the saw a. The suction in the hood is quite strong, but most important of all…. the saws natural trajectory for the high velocity chips coming off of the blade shoots the chips directly into the hood. No mess at all.

This set up isn’t intended to be permanennt. But I have to admit that I’m quite please with the results so far.

-- Pine is fine, but Oak's no joke!


14 replies so far

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devann

1735 posts in 1411 days


#1 posted 03-12-2012 03:41 AM

I’m guessing that you want to see some more examples. Here’s mine. I made it from FRP (fire retardant panel) and used some of that 90° angle metal used for acoustic ceilings to make brackets and braces.

-- Darrell, making more sawdust than I know what to do with

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devann

1735 posts in 1411 days


#2 posted 03-12-2012 03:44 AM

Here’s another photo of it.

-- Darrell, making more sawdust than I know what to do with

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Mainiac Matt

4311 posts in 1047 days


#3 posted 03-12-2012 03:12 PM

The general issue with setting up DC to a SCMS is that the mobility of the saw head.

That makes the saw shoot the chips in a lot of potential directions.

Most of the hoods I’ve seen on line, solve this by making the hood very large, to cover the full range of motion of the head.

I want’ed to try having a smaller hood move that moves with the head. The only thing I can’t do with this attached is tilt the head….. But because of the capacity of the saw, I can miter cut a 1×4 with the head straight up. So I only need to tilt the head for making a miter cut on wide stock. Which I don’t find myself doing in the shop very often.

To be honest….. this isn’t really rocket science and would be darn simple and easy if the manufacturers designed a hood for their saws from the ground up.

I suspect that because these are typically job sight contractor saws, though, it aint gonna happen.

-- Pine is fine, but Oak's no joke!

View NBeener's profile

NBeener

4806 posts in 1892 days


#4 posted 03-12-2012 03:14 PM

Don’t take this the wrong way, but … the first thing that came to my mind was “white trash.”

LOL !

I say … whatever works !

-- -- Neil

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Mainiac Matt

4311 posts in 1047 days


#5 posted 03-12-2012 04:02 PM

O.K. Beener….

I’ll have to print out your profile pic and past it to the side then :^o

-- Pine is fine, but Oak's no joke!

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NBeener

4806 posts in 1892 days


#6 posted 03-12-2012 04:13 PM

Figured … with the tensions on the website, lately … I should make sure my joke was clear.

White … wastebasket = white trash.

We good ?

;-)

-- -- Neil

View Greg..the Cajun Wood Artist's profile

Greg..the Cajun Wood Artist

5215 posts in 2027 days


#7 posted 03-12-2012 04:23 PM

I recently bought a new miter saw and got rid of my old bulky setup I built behind the saw to collect dust. This gives me some new ideas.

-- We all must start somewhere in our journey of doing what we love to do.

View 404 - Not Found's profile

404 - Not Found

2544 posts in 1688 days


#8 posted 03-12-2012 04:32 PM

I’m not rubbishing your trash can idea…

I read somewhere that Euro legislation is coming in in the next two years to make dust collection compulsory on all new mitre saws, this is the latest innovation in SCMS dust collection from Metabo, and on my wishlist for sure.

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Mainiac Matt

4311 posts in 1047 days


#9 posted 03-12-2012 04:42 PM

I got it Beener… I just thought I’d play along and send a zinger back at ya…. :^)

Too bad people are getting testy over on the off topic forum…. I got sucked into one political thread and I’m stearing clear from now on….. ruins the experience of the forum for me…. lots of other boards out there discussing that stuff…. :^(

That metabo sure looks like a sweet saw…. looks like my waste basket idea is the trend…. a smaller hood that stays located right in the “line of fire” at all times.

Since I’m I’m not into buying a new saw when my Milwaukee still runs fine, I’ll have to start shopping for better fitting waste baskets..

-- Pine is fine, but Oak's no joke!

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404 - Not Found

2544 posts in 1688 days


#10 posted 03-12-2012 06:44 PM

Maybe a modified flower pot would do it?

View DS's profile

DS

2132 posts in 1139 days


#11 posted 03-12-2012 10:50 PM

I’ve used a trash can with my miter saw for some time now, but not quite the same way. I just set mine all around the saw and hope they catch a small percentage of the flying debris.

Your system looks slightly more effective.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

View Grandpa's profile

Grandpa

3193 posts in 1394 days


#12 posted 03-13-2012 02:35 AM

I have a 12 inch Bosch slider. That thing slings dust over an 8 ft radius. I will be trying something like this. Thanks for the ideas.

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devann

1735 posts in 1411 days


#13 posted 03-13-2012 02:56 AM

ssnvet, thought I’d check back and see lots of pictures of dust catchers. Not so much ‘uh. Oh well, with 39,000 of us on the site I’m sure that more examples are forthcoming.

I guess you can tell from mine that to get one that allows the saw to operate within it’s full range of motion it has to be huge. I built mine because when we have to go back and work in a public/private areas that have already been turned over to the owners, they were making us erect big plastic tents around our saws.

How do you have yours fastened to the saw?

-- Darrell, making more sawdust than I know what to do with

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Mainiac Matt

4311 posts in 1047 days


#14 posted 03-13-2012 03:08 PM

How do you have yours fastened to the saw?

I drilled and tapped two 1/4-20 holes in the bottom of the casting that mounts the slide bushings….

The material is that lightweight cast zinc stuff and though it taps easy enough, I have to be very carefull, because it also strips easilly.

Two short machine screws and some washers to prevent them from going to deep and binding with the bushing and I have one hard mounted spot on the bottom.

High up on both sides, I took s ziip tie and sinched off to a cable guide on the right and the tale end of the arced slot on the left.

The hood weighs next to nothing, it’s the DC hose that contributes the most.

-- Pine is fine, but Oak's no joke!

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