By request:- A basic guide to identifying components and their functions for those who are new to electronics. This is a work in progress, and I welcome feedback from you guys on whether I should break it down into more manageable chunks. I've kept the maths to a minimum, since it can be off-putting to someone just getting started in electronics. The idea of this video is to slot in some more of the jigsaw pieces involved in learning electronics, when you start to recognise components, but aren't quite sure what they are or what they do. It's tricky to squeeze even the basics into a single video, and I've just realised how long this one is (and why it took all night to upload). If you enjoy my videos you can support the channel with a dollar for coffee, cookies and components at https://www.patreon.com/bigclive ... https://www.youtube.com/watch?v=6Maq5IyHSuc

Sunday July 29th 2018 Riverside museum & tall ship - Glasgow. A link to the event's website:- https://glasgow.makerfaire.com/ And their Facebook page:- https://www.facebook.com/GlasgowMakerFaire/ ... https://www.youtube.com/watch?v=6618rpgQdMo

Despite looking suspiciously like a urinal, this glossy white device is intended for mounting above eye height, which would make using it as a urinal quite messy. It also operates at 240V which would also make using it as a urinal quite hazardous to your "bits". In reality it's an insect trap that uses a sticky surface to catch insects lured in by its near-UV glow (they claim 385nm). These still seem to be available on eBay, but I'm not sure about the availability of replacement sticky boards for them, so you may have to get creative. Despite claiming a power of 2W per "tube" the LED strips only dissipate approximately 0.86W of power. So if these do actually attract flies (I've none to test it with) then I'd guess it would be best suited to a small area. It would be interesting to compare its performance with and without the diffuser. But that would expose live connections on the LEDs. The capacitor voltage rating being exceeded is a bit odd, but easily solved. However it might impact the reliability of the unit. The LEDs are being run quite gently at 12mA, so they should hopefully last a good length of time. The general construction seems quite good. It's a fairly stylish design and fits together well. I think they may have designed in the option for use with fluorescent UVA tubes too, with suitable holders and ballast. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- https://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty. #ElectronicsCreators ... https://www.youtube.com/watch?v=U_cKA8q2qk4

I bought one of these bases on AliExpress a while ago to experiment with using it to illuminate 3D printed covers. It looks really good, and is a very easy way to make custom illuminated ornaments. No woodturning or electronic skills are required to make this project, although it will require a 3D printer if you wish to make custom covers. It can also be used with other clear or translucent objects. It's powered by a USB power supply, so would be safe for many applications, including as night lights, or as a convenient and stylish off-grid ornament. The openscad script is down below, and is already sized for this base with its 33mm hole. (You may need to file off any flanging that occurs on the first layer. (I like to lay that first layer down hard for better adhesion.) I printed this in clear PLA, which works well. You could also use coloured PLA if desired for a different effect with reduced light output. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. #ElectronicsCreators Here's the openscad script. When adjusting the variables at the top, make sure you don't accidentally delete the "=" or the ";" on either side of the variable, as they are part of the script. //Lamp cap quartz crystal. //You can adjust the five variables below base=33; //Diameter of base for lamp rim=4; //Length of rim at base size=55; //Diameter of crystal scaling=1.5; //Scale of crystal length (default 1.5) facets=6; //number of faces (default 6) //Don't change variables below here halfsize=size/2; upper=halfsize-(base/2)+rim; $fn=facets; difference(){ union(){ //outer body translate([0,0,0]) cylinder(h=4+rim,d1=base,d2=base,$fn=100); translate([0,0,-(base/2)+rim]) cylinder(h=halfsize,d1=0,d2=size); translate([0,0,upper]) cylinder(h=size*scaling,d1=size,d2=size/2); translate([0,0,upper+size*scaling]) cylinder(h=size/4,d1=size/2,d2=0); } //Inner core. translate([0,0,-1]) cylinder(h=6+rim,d1=base-2,d2=base-2,$fn=100); translate([0,0,-(base/2)+rim+1]) cylinder(h=halfsize-1,d1=0,d2=size-2); translate([0,0,upper]) cylinder(h=size*scaling,d1=size-2,d2=(size/2)-2); translate([0,0,upper+size*scaling]) cylinder(h=(size/4)-1,d1=(size/2)-2,d2=0); translate([-halfsize,-halfsize,-halfsize]) cube([size,size,halfsize]); } ... https://www.youtube.com/watch?v=DE6PvXd4r10