(This discussion, has been migrated from @Sir Triode's Affordable Ultrasonic RCM from Poland thread.)
This project was inspired by @EV Cali's DIY machine & advice from biochemist guest110 on Audiokarma.
Based on the same 6L China-made Ultrasonic cleaner tank (avail on ebay.au), with a bit of engineering input, we rigged up a simple & affordable-to-manufacture prototype, using sheet stainless steel, a locally avail inexpensive rotisserie motor (same as @EV Cali's), a rod, spacers & a couple of record clamp nuts. here's the prototype running.....