3D Printed DIY Ribbon Microphone | Lundahl LL2912 vs Hand Made Transformers

Longest project and video so far :D Project additional info and STL files for purchase: https://dimapavlenko.com/3d-printed-diy-ribbon-microphone Inspired by Ulf Blomberg | Hoborec Recording Studios channel: His mic sound tests - https://youtu.be/HVRdMsXSm5o Ulf making his mic - https://youtu.be/SpWUpGbVeJo Royer R-121 on Amazon: https://amzn.to/483XT59 Beyerdynamic M160 on Amazon: https://amzn.to/3vbmJ4A Shure SM57 on Amazon: https://amzn.to/4axCZNe 00:00 Intro song cover - "Life" by Anton Oparin: https://youtu.be/GPXwsvLct40 1:06 Shure SM57 vs DIY Ribbon Mic and blend (with premade Lundahl LL2912 transformer) guitar sound test 2:50 Introduction to 3D printing (ribbon mic voice test) 3:59 How I got into ribbon microphones (recording and mic blending) 5:07 Royer R121 history and budget alternatives 6:12 modeling concepts - implementation steps planning, parametric design, simplify everything, etc. 7:58 First prototype 10:05 Searching for XLR connector, sockets and inserts 11:19 Alternatives to XLR connectors - mini XLR or donor cable. 11:50 [PROTOTYPE] Cap snapfit 12:10 [PROTOTYPE] Transducer (a.k.a ribbon motor) 12:31 [PROTOTYPE] Pop filters 12:49 [PROTOTYPE] XLR connector threading and transformer 13:44 Cloudlifter - ribbon and dynamic mics 48V phantom power amplifier 14:38 Cotton and transformer soldering 15:12 Corrugator design 16:00 DIY transformer 16:44 Premade Lundahl LL2912 transformer test 18:23 DIY ferrite core transformer test 19:29 Basic shielding and grounding idea of a DIY toroidal transformer 21:38 DIY amorphous core transformer test 22:06 Premade vs DIY transformers guitar sound test 23:13 Which transformer to choose? 24:23 Amorphous metal bounce test 24:54 How to make DIY amorphous core toroidal transformer 26:56 What happens to a ribbon when passing current through it (simulate phantom power) 27:26 Shielding and grounding concepts, ideas and alternatives 30:50 3D models (STL files) slicing and printing settings 31:52 Pop filter mesh slicing technique 32:28 Hot water molding technique 33:28 Ribbon motor (transducer) assembly 39:17 Summary, more crazy ideas and motivational speech 41:27 Soviet nostalgia ending === RECOMMENDED PARTS === Neodymium magnets BX842 (1 1/2″ x 1/4″ x 1/8″ thick) grade N42 - https://www.kjmagnetics.com/proddetail.asp?prod=BX842 (get the stronger grade N52 if available) DIY transformer amorphous core toroids (10*14*4.5mm): https://www.aliexpress.com/item/32276192605.html Premade transformers: - Lundahl LL2912 - https://www.lundahltransformers.com/product/ll2912 - Mesanovic - https://www.mesanovicmicrophones.com/transformers XLR connector (similar to Neutrik NC3MPRHD: https://www.aliexpress.com/item/32801422573.html (5pcs/lot) https://www.aliexpress.com/item/32803591731.html (50pcs/lot) Regular XLR inserts: https://www.aliexpress.com/item/32947446568.html https://www.thomann.de/intl/shure_xlr_buchse_fuer_sm58.htm