Author Topic: DIY Fullrange Speaker Driver  (Read 8987 times)

ghemml

  • Guest
  • Trade Count: (0)
DIY Fullrange Speaker Driver
« on: September 13, 2016, 15:58 »
A project that started out in late 2015, its been ding dong here and there. Here are some of the progress of the development.



Sizing of the motor using Neo Magnets



AutoCAD design and sending for fabrication



The Hamburgers looking motor
« Last Edit: January 21, 2017, 18:12 by ghemml »

ghemml

  • Guest
  • Trade Count: (0)
Re: DIY Speaker Tranducer
« Reply #1 on: September 13, 2016, 15:59 »


Design and fabricating the Basket
« Last Edit: September 13, 2016, 18:00 by ghemml »

ghemml

  • Guest
  • Trade Count: (0)
Re: DIY Speaker Tranducer
« Reply #2 on: September 13, 2016, 16:00 »

Designing a mold and jig for the folding of the cone



Gluing up the cone and the voice coil

ghemml

  • Guest
  • Trade Count: (0)
Re: DIY Speaker Tranducer
« Reply #3 on: September 13, 2016, 16:01 »

Add in the whizzer cone and the overall weight

Offline synthesis

  • Trade Count: (0)
  • Full Member
  • Posts: 4792
Re: DIY Speaker Tranducer
« Reply #4 on: September 13, 2016, 16:30 »
Kool!!  :)

Offline DIYer Straits

  • Trade Count: (+1)
  • Full Member
  • Posts: 4048
  • 6N6P Über Tube
Re: DIY Speaker Tranducer
« Reply #5 on: September 13, 2016, 21:20 »
Awesome! And some people say locals cannot make it.
Audere' Est Facere'    COME ON YOU SPURS.......
Laptop via XMOS
Khadas Tone DAC
Technics SL1200Mk2 (Modded) : Magnepan Unitrac : AT 33PTG/AT ART7
Ortofon T30 MC step-up, Custom MM WAD Phono3S Tube Phonostage/DACT CT100 (modded)
Custom 6N5P/6N6p Aikido Preamplifier
Modded TPA3118 Class D amplifier/Modded TPA 3255 power amplifier/Anaview AMS1000 power amplifier/KT88 SE
FAST with a 6.5" Satori mid and a 12" Pro woofer/Some Satori in birch ply cabinets with a PR/KEF R300
To be updated

Offline studioaux

  • Trade Count: (0)
  • Full Member
  • Posts: 133
Re: DIY Speaker Tranducer
« Reply #6 on: September 13, 2016, 22:20 »
Impressive!

Offline ht.chua

  • Trade Count: (0)
  • Full Member
  • Posts: 217
Re: DIY Speaker Tranducer
« Reply #7 on: September 13, 2016, 23:37 »
Fantastic!

Offline ericsec

  • Trade Count: (+1)
  • Snr Member
  • Posts: 62
Re: DIY Speaker Tranducer
« Reply #8 on: September 14, 2016, 15:40 »
Wao.... this is cool. Gave me a jap style feeling. 8)

Offline noinimod

  • Trade Count: (0)
  • Full Member
  • Posts: 281
Re: DIY Speaker Tranducer
« Reply #9 on: September 14, 2016, 16:56 »
Amount of work that went into this - true labor of love! How many engineering man hours spent on it so far?

ghemml

  • Guest
  • Trade Count: (0)
Re: DIY Speaker Tranducer
« Reply #10 on: September 15, 2016, 11:29 »
Thanks...

Cannot recall how long it took me to design and fabricate, all I know is it all started in 2015. I have to design jigs and fixtures just to fold the cone.

But I have no idea how this transducer will perform, and I still testing with the types of glue I can find locally and online.

Paper wise I got from Japan. Even paper is difficult to source.

Offline j45yip

  • Trade Count: (0)
  • Full Member
  • Posts: 1528
Re: DIY Speaker Tranducer
« Reply #11 on: September 15, 2016, 13:00 »
ML, really awesome looking drivers. Don't mind asking what's the strength of the magnet?
Vecteur D2 CD Transport, AN1865n-k Non-OS DAC
Thorens TD124MkII, MicroSeiki MA88, Expert Stylus 103 / Midas Touch
DACT CT100 / Custom Shunt Regulated PSU
5687 WOT Preamplifier
Behringer DCX2496
Type 45 SET monobloc / Radian950pb / AH204 Azurahorns
UcD180AN / Double Usher 15HM in Custom Vented Enclosures

ghemml

  • Guest
  • Trade Count: (0)
Re: DIY Speaker Tranducer
« Reply #12 on: September 15, 2016, 13:05 »
Its a N42 magnets.

I should have got the 1 inch height rather than this 1/2 inch height

Offline jaffrie

  • Trade Count: (0)
  • Full Member
  • Posts: 242
Re: DIY Speaker Tranducer
« Reply #13 on: September 15, 2016, 17:33 »
Wow bravo what a gallant effort.
This is the difference between boys & men . Lol

Offline DIYer Straits

  • Trade Count: (+1)
  • Full Member
  • Posts: 4048
  • 6N6P Über Tube
Re: DIY Speaker Tranducer
« Reply #14 on: September 15, 2016, 21:32 »
What surrounds will you use? Corrugated paper, foam or something more exotic?

I remembered that the Stamm series LothX drivers used foam and later on corrugated paper. They also used a folded paper ring rib behind the cone, to stiffen it up.
Audere' Est Facere'    COME ON YOU SPURS.......
Laptop via XMOS
Khadas Tone DAC
Technics SL1200Mk2 (Modded) : Magnepan Unitrac : AT 33PTG/AT ART7
Ortofon T30 MC step-up, Custom MM WAD Phono3S Tube Phonostage/DACT CT100 (modded)
Custom 6N5P/6N6p Aikido Preamplifier
Modded TPA3118 Class D amplifier/Modded TPA 3255 power amplifier/Anaview AMS1000 power amplifier/KT88 SE
FAST with a 6.5" Satori mid and a 12" Pro woofer/Some Satori in birch ply cabinets with a PR/KEF R300
To be updated