My shop vac stopped working a few days ago and I opened it up to check what's wrong. The problem is more likely the motor got burnt. I saw that the impeller of the shop vac is very small and thought that it's not very efficient. I decided to fix the shop vac using a leaf blower that seems to be able to move a lot of air.
First attempt, I just made a adapter to install the leaf blower on top of the shop vac but it seemed that the leaf blower is only design to move air. When reduce the air intake port buy using a small hose (original hose of the shop vac), the airflow reduced tremendously and the suction wasn't great at all. The new shop vac barely picked up any dust.
I uninstalled the leaf blower and check its impeller and it turned out that the impeller of the leaf blower has 2 halves. The first half is to move air from underneath to the output hose. The second half is to move air from the top to the hose that also helped to cool down the motor. This impeller is not dedicated for vacuum.
I redesigned the impeller and made one. The first test of the impeller wasn't very successful, one of the pane broke off and hit the side of the leaf blower, made a hole on the shell. I had to use my TIG welder to weld the impeller together. The second test showed that the suction was improved compare to the original impeller of the leaf blower but not very impressive. After trying to clean the Aluminum chips on my CNC machine, I think that the suction is actually not as strong as the original shop vac.
In the end, the leaf blower was very loud and not efficient for vacuum either. I will try to design and build a small size dust collector soon.
Негізгі бет Ғылым және технология Converting leaf blower into shop vac/dust collector - not worthy - don't do it!!!
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