Looking to replace exhaust motor that came with the 80watt laser. Description it’s in chinese, can’t read it. This motor burn out as soon I plug in , fire spit out from back.
If you can’t find a replacement. This is what I use. I got mine a little cheaper than this but it works well and is surprisingly quiet. http://www.grizzly.com/products/1-HP-Light-Duty-Dust-Collector-Polar-Bear-Series/G1163P Inlet on mine is 4" and outlet is 5" so you need a 5-4 reducer.
Here is what I’m using:
then one of these to control the draw.
Finally one of these to mount to the intake for the Aluminum exhaust tube. Works well you need to mount it on a piece of wood to keep it from walking around a bit. I almost always run it at half speed or even less.
thank you for the help and links.
@Steve_Clark I like it. Much cheaper solution. I used what I already had. One question though, why control the air flow?
Well… think of how a jet engine works or a blow forge, the more air going by the fuel (the part we are cutting) the more chance of a accelerated ignition and fire blowup because we are providing a lot of oxygen and pulling away the waste gases. I believe we want just enough to pull the smoke away from our laser beam and local environment and inside of the laser…
Do you have air assist? I was thinking of blowing out a candle.
My thought was to come up with a way to focus the vacuum under my cutting table so I could get a semi vacuum table going to hold things in place.
Yes, I have air assist the LightObject 19mm laser head with air-assist. A vacuum assist would a interesting challenge. I will be interested in what you come up with. @Martin_Dillon
I use an air assist and further replaced the faulty fan on the back of the k40 with a pc fan. Works like a charm.