Looking at your photo i see the vac hose can you post a pic of what you did for dust collection I have been trying to figure a good way to collect dust on my DW788.
There's not much to take a picture of. The photo that shows the vacuum hose along the side of my DeWalt 788 shows almost all there is to see. The hose is resting across the top of the power strip that's attached to the left side of the rear leg of my saw.The standard vacuum cleaner metal hose end is just tie wrapped to the sheet metal mechanism guard under the saw table. There's no collection fittings or shroud around the lower arm of my saw at all. The vacuum velocity is enough to pull the saw dust from under the table without doing anything else (if I remember to start the vacuum). I could post a photo of the standard metal end of the vacuum hose, but I doubt that the black tie wrap would even show up in the photo. My vacuum picks up almost all of the under table saw dust with the hose end just held near the lower blade mechanism. I wish I could think of a good way to do the same thing above the table of my saw. Every ornament or reindeer that I cut leaves a bunch of saw dust on the table top.
Several years ago they totally rebuilt the house next door to me. I mean they gutted the whole thing. Only the framing, outside walls and roof were left of the original house before they began putting it back together totally new inside. One day during this tear out work I saw the owner carrying the house central vacuum across the lawn toward the dumpster and I asked him if I could have it. He brought it over to my shop. Then he went back and climbed down into the dumpster and got me the 25' hose and all of the accessory fittings for it. Over the next few days all of the PVC vacuum pipes and wall outlets also found their way over to my shop.
I fixed the vacuum (bad control transformer) and cleaned it up with a plan to put it in my shop. It had incredible suction and my shop is small, so I thought that it would be ideal for collecting sanding sawdust, scroll saw dust, drill press dust, etc. I knew it wouldn't be big enough to collect the saw dust from my Unisaw or planer, but I thought that if it just picked up the fine sawdust and helped me clean the floor that it would be worth having.
The fabric filter in it proved to be way too small for collecting fine saw dust. It was just a loose fabric bag permanently attached inside just above the bottom collection container and it plugged quickly from saw dust, so I didn't permanently install the vacuum, but I did occasionally use it to vacuum the shop floor.
This past Spring a friend was closing his commercial wood shop and he offered me an Oneida Dust Deputy. It's a small plastic vortex type filter intended to be used with a shop vacuum. The dust is separated out of the air and drops into a 5 gallon can below the Dust Deputy. Only relatively clean air goes into the shop vacuum.
I hooked it up to my shop vacuum and then used it to vacuum about 4 1/2 gallons of sawdust out of the bottom of my Unisaw. Then I vacuumed the floor. When I opened the shop vacuum it was 99%+ empty. Almost totally clean. I immediately knew that this filter had to be installed on that whole house central vacuum that I had.
I installed the central vacuum unit on the wall in my shop's attic with the Dust Deputy mounted to the lid of the 5 gallon bucket sitting next to it. I drilled holes and ran the PVC vacuum pipe around my shop and placed one inlet port on each floor and one through the wall to the outside next to the shop door so that I could vacuum the cars and my truck with it too. Then I installed big open sided hooks across my shop ceiling so that I could easily route the vacuum hose across the ceiling in several different directions to the different machines that I would be using it with, and also to my work bench. I routed the exhaust pipe from the vacuum out through the attic wall near where the vacuum was mounted. Even if the filters miss some real fine dust it will never get back into my shop. I had to buy some additional pipe and fittings, but was able to use most of what had been given to me. For less than $150 including the $35 that I gave for the Dust Deputy the installation was complete.
With the vacuum fully installed it was time to test it. Again, I cleaned out the Unisaw, but it was still almost empty. Then I cleaned the rest of the tools and then the floor. All was working great until I accidentally plugged the end of the hose. A few seconds later I heard a loud wumph from the attic. I went up there and found that the 5 gallon plastic dust pail had imploded. It was now triangle shaped. My shop vacuum never did that to the bucket. What suction that central vacuum unit has!!!
So I needed a metal barrel for my vacuum system, but I couldn't find one small enough to fit up the pull down attic stairway to my shop attic. My son said he would try to find me a 30 gallon metal grease barrel, but that was going to take him some time to find. Then I realized that my plastic buckets (Firehouse Subs Pickle Buckets) had ribs running around the top 4" inches of them to reinforce the open end of the bucket, and the one that collapsed had only done so in the thin lower areas of the bucket sides. I then realized that by stacking 3 buckets together, the top bucket would have these ribs all the way to the bottom of it and the lower walls of these other buckets would reinforce the top bucket to make it 3 times as thick.
I'm still using my vacuum with the 3 buckets stacked for strength and no more implosions have occurred, but my son has found me one of those small 30 gallon metal grease barrels. I'll make a plywood lid for it and attach the Dust Deputy sometime early next year when my life slows down a little. I've got more Christmas presents to make right now, and my central vacuum is doing exactly what I wanted it for. Several times since installing it I have opened the bottom of the central vacuum and there's never been anything at all in it and I've had to dump the top 5 gallon bucket 3 times so far. The central vacuum with the Dust Deputy attached is working perfectly.
A picture under the table of my saw won't help much, but here are a couple of photos of my central vacuum, the stacked buckets and the Dust Deputy up in the attic of my shop. At the time that I took the photos I hadn't finished the exhaust piping on the right. Even pictures of the imploded bucket are included.