Hello there. Recently we needed a new ultrasonic cleaning machine for experiments and I had a look on the web and they're very expensive indeed. So we decided that we were by the components and put the machine together herself which is probably good because I can be one exactly as we like. I had a look for information on how to build and there is very little. So it's a question of cleaning bits and pieces from here and there on the web but I decided that we can handle this job since we bought a free-made circuit board which I'll come to at that in a moment but right now what I'm doing is cementing the transducer. This is the part that actually makes the ultrasonic vibration onto the tank and epoxy is the normal way this is done. There are stories that you need a very high-grade epoxy and so on to maintain adhesion. Well I'm afraid we're going to have to see if this epoxy is okay but that will soon become a pound. I think it's a problem. This by the way was a dollar store source but I just guarded the handle. It was steel pan. Everything has been degrees and I marked the place exactly where in the center where I want the horns to go. That's it. That's giving me a good squeeze down to remove any air bubbles. This is the driver's circuit for the ultrasonic device. This one arrived with a broken wire. I think somebody cut it off when they packaged it but never mind. It's a 100 watt full mains voltage device and this is the ultrasonic transducer, the pizza electric transducer that comes with it and it's basically identical to the one you just saw me gluing together and one of the problems with Chinese electronics in my experience is that they tend to be over driven and under and under specced so often overheating is a problem and also this needs to go into a box because you can't it can be a wet and messy business ultrasonic so obviously it wouldn't do to have water poured all over it so I'm going to use a box like this. This is dusty forgive me which is a perfectly standard plastic equipment box easy to cut, easy to drill and it will comfortably hold that but it's going to need some cooling so I'm going to fit a fan and some proper terminals outside for connecting the various things up so we don't have too many straggling miles everywhere. Here's the circuit board you saw earlier mounted in the in the box and I've mounted the terminal blocks but I haven't as you see finished wiring it out yet though that's not a big job all the holes are drilled ready to go. If you look underneath there's this which has two functions it keeps it off the bench a little bit which is good in case you've spilled anything on the bench and I often do but also through there I think you may be able to see it there's a hole which allows air to flow out from inside the box because the box has been fitted with fan cooling and here we have a little computer fan and also a 12-volt transformer to run it and also this is connected to a little LED, a pilot LED which will stop me forgetting it's switched on possibly very easy to do especially in a noisy workshop these are the leads which we can connect up and the 12-volt transformer will be fed from the main supply the same main supply that powers this I'm going to bring out the horn leads to this which is something I made earlier which is a stand as you see and the transducer horn as supplied drops down into there here we are like like so this one this one as the terminals on I can fit it in from underneath however there transducer horn fits there the pangos on there okay all connected up time to see how well this works I think look in for he in an stored we like to share the knowledge