https://stream.echo6.co/videos/watch/adfb39ea-87ee-433c-92df-fbe92733647b I was really hoping this was going to be one of the super minimalist LED lamps with just a resistor and rectifier. In a way it is, but a bit more sophisticated. Also featuring some of the completely useless 3D objects I've made as I've got into the script based 3D modelling. The crystals are promising. I may scale it up and then add some mounting holes for LEDs inside. 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. The openscad script for the bench mountable Costa chocolate coin holder is below. //Big Clive Costa chocolate coin rack difference(){ union(){ //main block translate([-38, -20, 0]) cube([73,40,12]); //mounting wings at each end translate([-38,0,0]) cylinder(h = 3, d1 = 20, d2 = 18); translate([35,0,0]) cylinder(h = 3, d1 = 20, d2 = 18); } //40mm coins x 5 (radius 20mm) translate([-7,0,21]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 20, r2 = 20); translate([-14,0,21]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 20, r2 = 20); translate([-21,0,21]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 20, r2 = 20); translate([-28,0,21]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 20, r2 = 20); translate([-35,0,21]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 20, r2 = 20); //30mm coins x 5 (radius = 15) translate([0,0,16]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 15, r2 = 15); translate([7,0,16]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 15, r2 = 15); translate([14,0,16]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 15, r2 = 15); translate([21,0,16]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 15, r2 = 15); translate([28,0,16]) rotate([0,90,0]) cylinder(h = 4.5, r1 = 15, r2 = 15); //countersunk fixing holes in wings translate([-42,0,-0.5]) cylinder(h = 4, d1 = 3, d2 = 6); translate([39,0,-0.5]) cylinder(h = 4, d1 = 3, d2 = 6); } Wed, 15 Apr 2026 09:25:34 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/adfb39ea-87ee-433c-92df-fbe92733647b All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.