"The Davenport's" wrote in message
...

"azotic" wrote in message
...
Does anyone have a heat sink that they want to part with ?

My minimum size requirement would be 6" X 8" or bigger.


I finished my DIY 3-phase VFD and need a large heat sink for the IGBT's.
When i have the heat sink i will be posting a short video of
the VFD in operation. It was a fun project and very educational. I
believe that
building a VFD is well within the capabillities of the folks that hang
out here.
Once i find a freeware schematic program i will produce a schematic and
have it available on the web if anyone is interested in building a VFD. I
have
run some short duration tests using a 7.5hp motor successfully.


Best Regards
Tom.

Tom,

I don't have any THAT big, but I could get you a couple pieces of 3" wide
aluminum heat sink.

If I remember right, it has 1/16" think fins with 1/16" spacing...the
total thickness is 1/2" and the fins are 3/8" tall.

If that'll work, I could likely get two 8" long pieces for you.

How much? That's the best part...considering how much steel you gave me a
few years ago, it'd be gratis.

Mike

Thanks for the offer mike, but your heat sinks are to small for my
application.

Best Regards
Tom.