Upgrade your shop-vac to a high-end dust extractor with an auto-start feature

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Project by ChuckM posted 05-07-2015 10:12 PM 2504 views 6 times favorited 3 comments Add to Favorites Watch

I can’t afford two CT26s in my shop, and this is what I did.

I attached two boards to the shop vac to make a mounting bracket/stand for the automatic vacuum switch. I also replaced the standard filter with a HEPA filter.

The modified shop-vac is similar to the Festool CT26 in airflow (about 140 cfm) and noise level (70 dBA). Cost comparison:

Shop vac – $100+$100 (upgrade) = $200
CT26 (variable suction and anti-static) – $850


-- The time I enjoy wasting is not time wasted

3 comments so far

View SteveW's profile


392 posts in 2276 days

#1 posted 05-07-2015 10:21 PM

Well done! What a great option for your shop…thanks for sharing.

-- On the eighth day God was back in His woodworking shop! SteveW

View JimAtLumberjocks's profile


48 posts in 1456 days

#2 posted 05-08-2015 01:10 AM

Nice! I have a dust collection system I use with my table saw, jointer, band saw and miter saw. However I have been really impressed with the airflow my shop vac produces. I use it with my random-orbit sander, my oscillating spindle sander and my router.

-- "Are you kidding me?"

View philba's profile


95 posts in 790 days

#3 posted 05-08-2015 01:55 AM

Nice. I did something similar but added a thein separator so it doesn’t clog the HEPA filter for a long time. Really nice to be able to wheel the cart up to where I’m working.

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