how I make sand core's

[Rickabilly]

(08-26-2013, 05:00 PM)oldgoaly Wrote: One of our locals used a HF paint spray gun, but it took 2 big hf air compressor running to give it enough air,

Maybe one of those low pressure spray guns that run off of a vacuum cleaner outlet might be the go???

But for waste oil I've been thinking of using a petrol fuel injector running off of a pulse width modulated power supply, we use these all the time in turbocharger waste gate controllers, coupled with an old school flap style automotive air flow meter and a little bit of basic circuitry it'd be a very powerful base for a burner controller, of course it would need an oil pump and a blower but with a little more electronics It would be very possible to have auto controlled furnace temperature as well. so literally light the sucker up and dial up the desired temperature which would auto control itself.

Maybe one day... I can dream...