Too Much Dust

[Mr. Redwood]

I have started a topic once, and in that time I have got some great feedback. Whenever I look online about mitersaw dust collection systems all I see is dust hoods. I don't I don't really want a dust hood, so is there a way for better dust collection? I have heard that if you lose your miter saw bag you can use a sock, it that true? All I have to use for this system is a shop vac will that be a problem?

Thank You and Happy Wood Working

[Beechwood Chip]

Miter saw dust collection is very difficult.  There are only a few ways to do it, as far as I know:

• buy a really expensive miter saw like a Kapex
• surround the whole thing, or most of it, to contain the dust
• move it outside and let the dust blow away

[Brendon_t]

Moving more air is usually a start.  rather than passively collecting in a sock, hook a shop vac to the port. I use the CT on high and it does decent. 

[bleedinblue]

The bag that came with the saw, or a sock, will do next to nothing.  You need a strong shop vac attached to the port instead.  Depending on your saw, you may be able to attach some pvc and/or leather flap to help direct dust toward the port.  Check YouTube for some ideas.

[Mr. Redwood]

The thing is even my shop vac connected to the port dosen't do much it only gets he dust going directly into the port and maybe some dust around that, is the dust hood the best idea?

[Brendon_t]

Honestly no.  for  dust collection on mitre cuts, I think the mft is about as good as you get. 

Collecting dust from a chop saw or mitre saw effectively is one of the things I don't think woodworking companies have figured out yet. Mike@estesbubba made a video a few weeks back with good results of collection but he is running dust collection pipe right up to a contained area behind the saw.  

Only having a shop vac will limit your effectiveness and I think it best to adjust your expectations.  

 

[ben_r_]

For a miter saw?! Nope. Dust hood hooked to a good strong dust collector is about the only way. Or get a Kapex and live with its 90% collection.

[estesbubba]

Here is my video. Not perfect dust collection but good enough for now.

 

[Tom Cancelleri]

@estesbubba Mike, through a 90 degree register piece at the end and it might be even better.

[sheperd80]

I use a ridgid shop vac and added a sort of extension around the boot on the saw that funnels in the dust. All it is is a duct tape flap that lengthens and widens that boot. Id say it grabs about 75% of the dust, as opposed to like 30% without that simple add-on. I think 100% is impossible with most saws.

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The trick is to start with the saw forward and push through the cut, instead of chopping down. While pushing like that, the dust sprays right into the boot.

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Of course this only works on saws where the boot moves with the sliding head, some dewalt and other saws have a fixed dust boot.

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[Gilgaron]

In addition to using the shop vac connected to the port, you can put a box fan with a very fine furnace filter (and, optionally, a coarser fiberglass filter on top of that) on the ceiling above the saw and it will help draw away the fine dust that otherwise is missed by the vacuum and gravity. 

[estesbubba]

1 hour ago, Tom Cancelleri said:

@estesbubba Mike, through a 90 degree register piece at the end and it might be even better.

I thought about that but the spiral 90's are long radius and would get in the way when rotating for miters...although I might never use that saw for that. 

[Mr. Redwood]

I think I have a solid idea to go off of now.