{"product_id":"tiny-john-open-source-bluetooth-speaker","title":"Tiny John - Open Source Bluetooth Speaker","description":"\u003cblockquote\u003e\n\u003ch3\u003eWelcome to the Tiny John! Inspired by the massive, room-dominating \"Big John\" horn setups taking over the audiophile world, I wanted to engineer that same dramatic acoustic presence into an affordable and desktop-friendly form factor.\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDon't let the \"Tiny\" name fool you, this speaker packs a serious punch. The sweeping dual front horns aren't just for aesthetics; they are engineered to dramatically improve acoustic performance and sound projection. Paired with bottom-mounted passive radiators, this enclosure delivers rich, room-filling audio from a compact, fully 3D-printable shell.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\u003ch3\u003e\n\u003cbr\u003eThe purpose of this project goes beyond just putting a cool speaker on your desk. I want to kick off a fully-fledged community arms race. \"Big John\" dominated the internet by going as massive as possible, but I want to see who can engineer the absolute best, most acoustically impressive \"Tiny John.\"\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eConsider this the official gauntlet being thrown down.\u003c\/strong\u003e If you think you can remix, redesign, or optimize this acoustic setup to squeeze even more punch out of a compact footprint, I want to see it.\u003c\/p\u003e\u003ch2\u003eThe Official Rules:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e \u003cstrong\u003e  Power Limit: \u003c\/strong\u003eUnder 10W total power.\u003c\/li\u003e\n\u003cli\u003e   \u003cstrong\u003eWeight Class:\u003c\/strong\u003e Under 2KG total weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e   \u003cstrong\u003eThe Maker Rule:\u003c\/strong\u003e The entire enclosure, horn system, and acoustic structuring must be fully 3D printed (only the bare-minimum electronics, drivers, and mounting screws are allowed).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRemix the files, push the limits of 3D Printing, and tag me in your builds. Let's see who can engineer the ultimate desktop featherweight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\n\u003cbr\u003eTiny John Key Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e   \u003cstrong\u003eAcoustic Horn Design: \u003c\/strong\u003eEngineered for enhanced sound projection and clarity.\u003c\/li\u003e\n\u003cli\u003e   \u003cstrong\u003ePassive Radiator Setup: \u003c\/strong\u003eThe Worlds first thermoformed 3D printed passive radiator! For deep, punchy bass response.\u003c\/li\u003e\n\u003cli\u003e   \u003cstrong\u003eModular \u0026amp; Multi-Color Friendly: \u003c\/strong\u003eThe design is split into logical components (horns, speaker enclosure, grills, central column) making it incredibly easy to print in your favorite colorways without needing an AMS\/MMU.\u003c\/li\u003e\n\u003cli\u003e   \u003cstrong\u003eCustom Center Console:\u003c\/strong\u003e Houses the main power switch and acts as a rigid bridge for the dual acoustic chambers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003ch3\u003eHardware Required:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e   1x DIY Bluetooth Kit\u003ca target=\"_blank\" rel=\"noopener noreferrer ugc\" href=\"https:\/\/www.amazon.com\/gp\/product\/B0CNSM5QK7\"\u003e (I purchased this one)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e   22x 2*8mm Self Tapping Screws\u003c\/li\u003e\n\u003cli\u003e   8x 3*5mm Self Tapping Screws\u003c\/li\u003e\n\u003cli\u003e   4x AA Batteries (Or MakerSupply USB Power Cable, need to flip the polarity first.)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\n\u003cbr\u003eRecommended Print Settings:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Wood PLA, PETG Glass Fiber, or ABS\/ASA Glass Fiber(For the best acoustic deadening, heavier\/denser materials like ABS Glass Fill work great). 90A TPU \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWalls\/Perimeters: \u003c\/strong\u003e4-6 walls. (More mass = less unwanted resonance!)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInfill:\u003c\/strong\u003e 30-50% Gyroid or Cubic for a dense, rigid enclosure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports: \u003c\/strong\u003eOrganic supports are placed in the 3MF\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #E14747\"\u003eNOTE: 90A TPU IS USED IN THIS DESIGN. FLOW RATIO NEEDS TO BE AT 1.15 SO YOU GET A GOOD SEAL ON THE PASSIVE RADIATORS. IF ANY LEAKS FORM IN THE PRINT IT WILL RUIN THE BASS RESPONSE.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAssembly:\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAssembly Guide is still in progress. I will be uploading it tomorrow along with the thermoforming guide, and all the STEP files for this project so you may adapt it to your own. \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesign by Joshuaisodd on MakerWorld (license: BY-SA).\u003c\/p\u003e","brand":"Mymadmanlab","offers":[{"title":"Default Title","offer_id":67370712170800,"sku":null,"price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/0809\/5280\/files\/0_02e88dec-8a3c-4b79-b300-ac9e948160a6.png?v=1784094333","url":"https:\/\/mymadmanlab.com\/products\/tiny-john-open-source-bluetooth-speaker","provider":"Mymadmanlab.com","version":"1.0","type":"link"}