VFD in a enclosure. Other ways than this? - Page 2
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  1. #21
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    For upper air outlet, how about a heating oil tank vent cap- lets air out, but the hat + screen would do a pretty effective job of keeping 'stuff' out

    https://www.homedepot.com/p/2-in-Qua...-202312881-_-N

    They cone in a range of sizes

  2. #22
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    Quote Originally Posted by kd1yt View Post
    For upper air outlet, how about a heating oil tank vent cap- lets air out, but the hat + screen would do a pretty effective job of keeping 'stuff' out

    https://www.homedepot.com/p/2-in-Qua...-202312881-_-N

    They cone in a range of sizes
    Wot a "major weapons system project" this rig has turned into arredy.... F35 best watch its budget!

    Run about 20-foot of galvanized duct up and thru a roof boot and yah might even have chimney effect enough to not need the noisey cooling fans, too, yah?


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  4. #23
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    Quote Originally Posted by thermite View Post
    Wot a "major weapons system project" this rig has turned into arredy.... F35 best watch its budget!

    Run about 20-foot of galvanized duct up and thru a roof boot and yah might even have chimney effect enough to not need the noisey cooling fans, too, yah?

    The duct will have to be sized for boundary layer development.

    Tom

  5. #24
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    Quote Originally Posted by rons View Post
    Cut some metal and this is how both sides will look. Thought about tack welding but I'm going to drill and tap for stainless button head screws
    Given the adapted HVAC grills are as lightly made as they generally be, a bead of RTV would be neater and even seal the edges of the buggers against dirt and fiber collection without drilling, tapping, or distortion once tightened.

  6. #25
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    Quote Originally Posted by TDegenhart View Post
    The duct will have to be sized for boundary layer development.

    Tom
    This whole project needs a "boundary layer" between functionality and make-work that resembles making steel-toad boots out of Titanium toad skin ... to shoe stepping-stones.

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  8. #26
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    Quote Originally Posted by JST View Post

    Failing that, vents in the side near the top are good, and are easier to protect against crud.
    Thanks for the side vent idea.

  9. #27
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    Quote Originally Posted by Karl_T View Post
    Here's a VFD box I built for my son's southbend lathe. Did it so he can remove it to another lathe when he upgrades.
    Thank you. In the 2nd photo there is a rectangular box on the right side of the drive, that must be a brake resistor.

  10. #28
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    Quote Originally Posted by rons View Post
    Thank you. In the 2nd photo there is a rectangular box on the right side of the drive, that must be a brake resistor.
    correct .


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