[TheFridge]

I took the collector and put it on a 55 gallon drum. I cut a thein baffle in the drum lid. I melted a Rubbermaid trash can lid to the top with a 4" plumbing 90 in the center, pointed away from the shop. I ran a piece of 5" plumbing pipe outside to the collector/ drum setup with the motor and impeller inside under my table saws extension table. It just spits chips into the yard when i forget to empty it.

Works like a champ.

Edit: lowering back pressure put less stress on the motor.

 

[TheFridge]

Ehhh. Gonna have to disagree there bud. The increase in air flow is just the motor doing more work with less power. Because the airflow increases doesn't mean the amperage does. The induction motor wants to run at or near its rated rpm. Any restrictions or added load will cause it to draw more power to try to keep up. If you ran an induction motor with no load at all it would run just fine.

 

[TheFridge]

Pretty much an electrician. 15 years. Just sayin.

 

[TheFridge]

personally, I wish someone could show me. I've spent 5 fruitless hours looking for answers I already knew. While learning a little bit more about other motors along the way but that has no bearing here.

Split phase motors is what you're gonna look for. Idle or no load conditions. Not universal motors like in a vacuum.

 

[TheFridge]

You are right.

In the end it depends on the size of the impeller in relation to the size of the motor.