DIGITAL FILES - Dewalt DWS779/780 Sliding Miter Saw Dust Collection

I had to revise the blade opening slot and reprint because I couldn't get blades off/on. Destroyed one when loose material flew into it. Does work very well at dust collection though.

I love the design and ease of installation on the dust collector chute, just having a heck of a time sourcing a cost-effective vacuum hose with right-hand spiral thread.

Overall I’m very pleased with the performance of this part. I opted for the digital files to print out myself for a couple reasons: 1, the lead time was way too long for me - I needed a solution that day and I didn’t want to wait. And 2, I do a lot of 3d printing, so it wasn’t intimidating to me to do it myself and I have all the materials on hand. That being said, I gave this 4 stars because what I’m not happy about are the somewhat proprietary components (hoses, rubber, screws) needed to get this working and some of the accessory models included in the bundle. None of the 1.25” hose I had laying around fit right, because it’s all left hand threaded - the threads on the model are right hand threads. I spent half the day driving around looking for hose and couldn’t find anything with the proper thread. So I ended up just jamming some 1.25” pool hose on and sealing it with black silicon tape. Not the most elegant solution, but it works. I also had to redesign the vac adaptor because it didn’t fit any of my shopvac or ridgid vacuums. The 2.5” adapter only grabs about 3/16” of the vacuum hose before it bottoms out on the inside taper, then inevitably slips off during use. The locking coupling is gimmicky and not really useful for me personally. In the end, minor gripes because the dust collection works!!! So if you go the route I did and print your own, I recommend ordering the parts kit at the very least. Or else you’ll end up cobbling something together that works, but will annoy your ocd. Hopefully the adaptors will get a redesign to make them fit more securely and not slip off.

The plans work perfectly, i had to ask someone else to print it and worked well, but couldnt use it yet, so, i cant talk about the performance. The only negative thing about it is the difficulty to change the blade when the part is already attatched, i had to detach it first to be able to do the switch. Would be great if you guys can find a solution for this minor issue.

I don’t have the model it was designed for but I made it work with a heat gun to slim down where it goes between saw and black bar works great almost fit without modifying

I'd consider this a must have upgrade for the DeWalt 779. Even without a vacuum attached you can tell how much more work the dust chute does than stock. The STL printed nearly flawlessly, I only had to file a couple places, though that could have been from tolerances in my printer.

This addition has cut the dust down massively!! It is well worth the money! I ditched my enclosure on my miter saw and now I have so much more room to store all my jigs above the saw!!

Product came out as advertised. Totally improved the dust collection of my Dewalt sliding miter saw.

Fantastic Upgrade This greatly improved the dust collection and was extremely simple to print, assemble, and install. Initial test on small stock material showed roughly 95% dust collection while test cuts on larger 4x6 stock had slightly less collection - which is to be expected. Overall this is a huge improvement over stock dust collection at a low cost. If you have the capability to print yourself I would highly recommend it. Even if you are unable to print yourself, I would recommend that you purchase the fully assembled option.