EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: Pcaiman on May 07, 2020, 12:10:43 am
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Hi forum, i wanna get a ultrasonic cleaner, i see in Alibaba and a supplier make a offer for 1000 usd with this Specs:
1) Capacity:108L.
2) Frequency:28Khz.
3) Tank size:600*450*400mm
Great the problem is the shipping price for me is 1000 usd more, and i wanna know what need for make a ultrasonic cleaner with this specs, i wanna use for clean a small block engine, and only car spare parts.
maybe buy a kit like this: https://es.aliexpress.com/item/32967152426.html
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I also am considering making an ultrasonic cleaner. I found a kit for this Silicon Chip magazine project for boat owners to reduce marine growth on boat hulls.
http://archive.siliconchip.com.au/cms/A_112107/article.html (http://archive.siliconchip.com.au/cms/A_112107/article.html)
It was discontinued on sale in Jaycar for only A$27 so I couldn't resist.The transducer was also pre-assembled and potted as per the project description so that just seemed to make it less work and risk. So even if the transducer assembly was all I could use it seemed fair value. Plus I got a tube of JB weld.
However from what I can see SC seem to recycle the driver electronics largely between the anti-fouling and cleaning application.
So I've been sitting on it since Feb and yesterday I found whilst shopping at "La Strada" (the street) I found a cooking pot with a perforated insert for free. It seemed a good size at about 200mm diameter and a similar depth and with the insert it seemed ideal. However what I am less confident about is can you fit the transducer to the base which is about 10mm thick. Good and sturdy but is it too thick? I just noticed SC Sept2020 has yet again recycled the ultrasonic cleaner project and they always seem to use relatively thin walled containers.
Maybe like me they just use what they think is easily available and inexpensive for readers who want to make one.
So does the thick base of the pot make it an unsuitable mounting location for the transducer? The curved sides are, well curved so the base is the only flat surface. And would I need to do something to isolate the insert from the main vessel. The baskets used in commercial cleaners seem to contact the main vessel in very small contact points and not the entire circumference.
Another concern is the insert is far more "solid" than the mesh baskets I've seen in commercial cleaners. It has 8mm holes which are fine for draining pasta but the sides may attenuate the ultrasonic waves a bit too much. So I have a few doubts creeping in.
I hope someone with experience in a similar project can offer some advice.