Dust shoe reboot (no pun intended) - Page 3 - Router Forums

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post #21 of 22 (permalink) Old 01-09-2017, 10:08 PM Thread Starter
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Sometimes you need to blow compressed air to clear the channel being cut. Depending on the bit chips can sling out far and wide. I don't use the DC when I engrave or use a 1/8" end mill because there's just not enough dust and chips to put up with the noise of the DC. It's during those times I get to enjoy the quiet spindle with no hearing protection. But I used a 1.5" two-flute bottom-clearing bit the other day with no shield or DC at all and it flung chips 15' away!

To blow air and catch the chips you'd have to work with the air pressure/volume carefully so as to not blow so hard the DC can't suck it in but the idea has merit, Rick. I've worked up a couple of designs using that very combo but haven't built a model yet - one day, maybe.

David

Nothing to do with woodworking at all, just our music at church (I'm the guy with the Koa Takamine) - Airline Baptist Church BC Songs
Romans 3:23
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post #22 of 22 (permalink) Old 05-19-2017, 10:44 PM Thread Starter
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After slinging chips all over the shop when I cut that Pecan slice sign I decided it was time to review the homemade dust shoe. I have about $5 in this dust shoe, maybe $6, and it works to about 50% efficiency on chips and about 90% on MDF dust.

So I looked at the airflow in and around the dust shoe with the DC on and decided that the broom bristles are just spaced out too far a the top. This does two things - the chips can fly through the openings and also the air being pulled in by the DC is taking a shortcut through those gaps instead of pulling chips from the work piece.

I picked up some carpet runner, fairly flexible and sort of transparent, and wrapped it around the dust shoe. I just stapled it in place to test but the good thing is it worked. I cut a pocket 4" x 6" x 3/8" deep into a piece of Cherry and I didn't see more than 6-8 little chips when it was all said and done. And chips that manage to escape are picked back up when the brush comes back around on subsequent passes. So I'll probably use it like this for a while and then do a cleaner version at some point.

Some of the chips get stuck between the bristles and vinyl but those are easily dislodged and cleaned up.


Clean pocket; previously there would have been a lot of dust and chips on the work piece and in the pocket. The chips on the spoilboard are from messing with the dust shoe and some of it falling.


I still have some other ideas for a better performing dust shoe but I have too many projects that need my attention first.

David
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David

Nothing to do with woodworking at all, just our music at church (I'm the guy with the Koa Takamine) - Airline Baptist Church BC Songs
Romans 3:23
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