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12" SCMS dust shroud.

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Project by Paul posted 01-01-2015 11:48 PM 2882 views 16 times favorited 17 comments Add to Favorites Watch

Simple dust shroud for a newish 12” Hitachi slider. 36” Wide 26” Deep. The biggest trick was figuring out how to run 2 4” hoses inside the compartment and still have room to rotate the massive slider left and right for 45’s as well as keeping at least one side able to bevel to 45 and rotate 45 (the left).

The 2 4” hose runs connect to a lower 21 1/2” wide 1 3/4” tall dust collection port on the bottom of the cabinet and a 4” hose that connects to the saws own blade shroud port.

So far I’m very happy with the results. Dust collection works very well, I ran a piece of 4” mdf through it today as fast as I could and it seemed to pick up most of the nasty small particles. Running the full 12” length of a crosscut I still get some larger particles that fall from the furthest part of the cut but I can live with that. It was a HUGE improvement over one of those gimmick plastic shroud stands that side behind the saw.

Edit: Video of cross cutting 10”s of MDF with the DC running.

Edit 2: 45 degree cross cuts.

Thanks for looking,

Paul





17 comments so far

View scott0317's profile

scott0317

53 posts in 917 days


#1 posted 01-02-2015 02:38 AM

I would sure be thankful to have more information on this setup. As I’m sure you are aware, many of us do not have a solution to this tool and dust collection. I am redoing my shop and would love to add your setup. If you get time, please expand on more dimensions and what you might do differently. If you have time. Thanks

-- I've almost got all the tools I need, almost.

View Paul's profile

Paul

721 posts in 1026 days


#2 posted 01-02-2015 03:08 AM

I can get you more photo’s and dimensions tomorrow. I built it on the fly and didn’t have any set plans or drawings to go off, just a tape measure and guesstimates as I was building it.

Here’s a pic of the side if that helps you at all with rough dimensions until the morning.

Inside of the carcass without the saw in it.

Thanks,

Paul

View Craftsman on the lake's profile

Craftsman on the lake

2523 posts in 2899 days


#3 posted 01-02-2015 01:02 PM

The never ending miter saw dust collection battle. Nice design. I too found that collecting some of it and containing the rest were the best options for me. I used cloth over the entire front side of it. Sort of like curtains. See a video of it here

I see you compensated for the angled tilt. takes a lot of room when doing that.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View Matt Przybylski's profile

Matt Przybylski

528 posts in 1839 days


#4 posted 01-02-2015 06:42 PM

Very nice job, I have this same exact saw so I’ll be following this along closely.

What is the material that bends on the sides?

-- Matt, Illinois, http://www.reintroducing.com

View philba's profile

philba

96 posts in 833 days


#5 posted 01-02-2015 06:48 PM

I’ve got something similar drawn up, just looking for a break from the honeydo list and myriad of other shop projects to get to it. Interesting idea using the floor scoop. Do find dust building up behind/on top of it?

Also, my design is not nearly as tall. Wondering if I need to raise it up a bit.

View NoThanks's profile

NoThanks

798 posts in 990 days


#6 posted 01-02-2015 06:50 PM

Looks like it would work pretty good for 90 deg cuts,
Doesn’t look like it would work for a 45 deg bevel.
Is it at a 45 deg bevel in the pic and does it slide out in that position?

-- Because I'm gone, that's why!

View Paul's profile

Paul

721 posts in 1026 days


#7 posted 01-02-2015 06:50 PM



Very nice job, I have this same exact saw so I ll be following this along closely.

What is the material that bends on the sides?

- Matt Przybylski

It’s made out of 3/4” maple ply. The dark strips on the inside are strips of leather stapled on to help the vacuum effect inside the cavity and help pull the dust particles into the box cavity.

Thanks for looking and the comments,

Paul

View Paul's profile

Paul

721 posts in 1026 days


#8 posted 01-02-2015 06:54 PM



Looks like it would work pretty good for 90 deg cuts,
Doesn t look like it would work for a 45 deg bevel.
Is it at a 45 deg bevel in the pic and does it slide out in that position?

- Iwud4u

I can get a full 45 miter and full 45 degree bevel with it rotated to the left. Because of where the sliding mechanism is housed on the right side of the saw I can only miter it 45 degrees to the right and only up to a 15 degree bevel on the right.

The DC on the left 45 miter and 45 bevel is pretty good. I can take a video of it pulling dust if you’d like.

Thanks for looking,

Paul

View Paul's profile

Paul

721 posts in 1026 days


#9 posted 01-02-2015 06:57 PM



I ve got something similar drawn up, just looking for a break from the honeydo list and myriad of other shop projects to get to it. Interesting idea using the floor scoop. Do find dust building up behind/on top of it?

Also, my design is not nearly as tall. Wondering if I need to raise it up a bit.

- philba

So far no dust build up on top of the cabinet or behind it. All the corners and any little seam have also been silicone caulked to prevent any air leaks, or dust leaking.

Thanks for looking,

Paul

View WOODIE1's profile

WOODIE1

117 posts in 1740 days


#10 posted 01-02-2015 09:05 PM

Cool build and video.

When you watch the video you can clearly see where the majority of dust is generated. You can’t help but think why saw mfg.’s can’t come up with a good solution. Even the Kapex lacks in this area although a bit better then others.

View NoThanks's profile

NoThanks

798 posts in 990 days


#11 posted 01-02-2015 11:39 PM

Looks like it would work pretty good for 90 deg cuts,
Doesn t look like it would work for a 45 deg bevel.
Is it at a 45 deg bevel in the pic and does it slide out in that position?

- Iwud4u

I can get a full 45 miter and full 45 degree bevel with it rotated to the left. Because of where the sliding mechanism is housed on the right side of the saw I can only miter it 45 degrees to the right and only up to a 15 degree bevel on the right.

The DC on the left 45 miter and 45 bevel is pretty good. I can take a video of it pulling dust if you d like.

Thanks for looking,

Paul

- Paul


No video necessary,
I was concerned that the saw would hit the side of the shroud when tilted to the 45 deg bevel,
and turned to the 45 deg angle.
If you say it doesn’t, that’s good enough for me.

-- Because I'm gone, that's why!

View Razorburne's profile

Razorburne

41 posts in 880 days


#12 posted 01-03-2015 02:14 AM

Looks great, Paul….I like the design.

I have the opportunity to buy myself a SCMS and I was looking into getting this exact 12” Hitachi…..how do you like it? It will be my first miter saw ever, but I hear nothing but positive things about it.

View Paul's profile

Paul

721 posts in 1026 days


#13 posted 01-03-2015 03:18 AM



Looks great, Paul….I like the design.

I have the opportunity to buy myself a SCMS and I was looking into getting this exact 12” Hitachi…..how do you like it? It will be my first miter saw ever, but I hear nothing but positive things about it.

- Razorburne

Razorburne,

It’s a fantastic saw. This is the 3rd SCMS that I’ve had. The first 2 the lasers were not worth a damn. I did not buy the Hitachi for the laser sight on it but boy was I surprised with how accurate it is. It’s even adjustable enough on the fly to cut left or right of your pencil/knife marks in literally seconds.

It’s a very accurate saw and the sliding mechanism on it is rock solid, takes up a smaller footprint than a traditional slider as well.

The con – IT’S HEAVY! I wouldn’t want to use it on the job site, I keep my 10” slider from grabbing out of the back of the truck.

You will enjoy it I’m sure.

Paul

View Paul's profile

Paul

721 posts in 1026 days


#14 posted 01-03-2015 05:17 AM

I’ve had a couple private messages telling me how dangerous the leather strips are in the second video I added.

The video angle makes them appear much closer to the saw blade than they actually are. The leather strip that shows it’self in the video as I’m drawing the saw outwards is no where near the blade.

I do appreciate safety concerns, and thank you.

Paul

View Paul's profile

Paul

721 posts in 1026 days


#15 posted 01-03-2015 05:24 AM



I ve had a couple private messages telling me how dangerous the leather strips are in the second video I added.

The video angle makes them appear much closer to the saw blade than they actually are. The leather strip that shows it self in the video as I’m drawing the saw outwards is no where near the blade.

I do appreciate safety concerns, and thank you.

To address the leather strips from another private message, The leather strips help with sustaining some sort of pull of negative air into the box so that particles of dust can be collected and drawn into the box even if it’s a minimal pull at 12”s from the blade.

Paul

- Paul

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