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Thread: Using Iroko to make an armboard

  1. #1
    Join Date: Jul 2010

    Location: Cheltenham

    Posts: 987
    I'm Charlie.

    Default Using Iroko to make an armboard

    I need to make a new armboard for my TW Acoustic Raven One. I can use the original to make a pattern from MDF, so that I can make more if needed. I have plenty of iroko lying around, salvaged from some broken gates.

    1) what do people think about using iroko?

    Alternatively I could buy some 20 mm thick delrin and cut new ones from that

    Thanks

    Charlie
    R2R: Studer A820 1/2 inch 2 track; Otari MTR-12 1/4 inch 2 track; Sony APR 5003; Sony APR 5002; Studer A807/II. Vinyl: Platine Verdier Allaerts MC1B/Schroeder Reference & Model 2 Decca C4E/Hadcock 228 TRON Seven Reference phono. Keith Monks MkII RCM Other analogue source: Nakamichi Dragon with ANT4066 mods. Amplification: TRON Meteor preamp TRON Voyager 20B SET power. Speakers: Avantgarde Duo. Digital: computing at last with Prism Sound Lyra 2 A2D converter

  2. #2
    Join Date: Jan 2013

    Location: Bristol

    Posts: 7,266
    I'm Justin.

    Default

    That's a nice deck. Iroko will look out of place. So will Delrin IMHO.

    They will both sound different.

    TBH I would go with an OEM part i.e. what the deck was designed for.

    That said, til you try both your DIY options you won't know which sound you prefer.

    Turntables are weird and really sensitive to stuff like this.

  3. #3
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 9,779
    I'm Andrew.

    Default

    Well AI managed this gem :-

    "For an Iroko wood acoustic/vibration build, the mechanical loss tangent (\(\tan \delta\)) typically ranges from 0.008 to 0.015 along the grain at audio frequencies."

    Don't know if that helps.
    SS
    CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10

    VALVE / MONO
    PRE
    Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker





  4. #4
    Join Date: Jul 2010

    Location: Cheltenham

    Posts: 987
    I'm Charlie.

    Default

    thank you
    R2R: Studer A820 1/2 inch 2 track; Otari MTR-12 1/4 inch 2 track; Sony APR 5003; Sony APR 5002; Studer A807/II. Vinyl: Platine Verdier Allaerts MC1B/Schroeder Reference & Model 2 Decca C4E/Hadcock 228 TRON Seven Reference phono. Keith Monks MkII RCM Other analogue source: Nakamichi Dragon with ANT4066 mods. Amplification: TRON Meteor preamp TRON Voyager 20B SET power. Speakers: Avantgarde Duo. Digital: computing at last with Prism Sound Lyra 2 A2D converter

  5. #5
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 9,779
    I'm Andrew.

    Default

    IPE or Permali would be better. If you don't want the expense buy a cheap Bamboo chopping board and make something from that. Bamboo has a decent damping factor which better than Iroko. Perhaps you could do a comparison and shares your experiences with the forum??
    SS
    CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10

    VALVE / MONO
    PRE
    Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker





  6. #6
    Join Date: Mar 2009

    Location: South West-ish, UK

    Posts: 521
    I'm Patrick.

    Default

    Quote Originally Posted by topoxforddoc View Post
    I need to make a new armboard for my TW Acoustic Raven One.
    What happened to the Platine Verdier? Interested to hear how the Raven One compares.

  7. #7
    Join Date: Jul 2010

    Location: Cheltenham

    Posts: 987
    I'm Charlie.

    Default

    Quote Originally Posted by Patrick Dixon View Post
    What happened to the Platine Verdier? Interested to hear how the Raven One compares.
    The PV is still in my mains system with 2 x Schroeders, Allaerts MC1B and Decca C4E

    The Raven One is in my study system with the original Vivid 2 (Jelco 250) tonearm. Have bought an AT1010 and need to make a new armboard for it. I have lots of cartridges in ADC Magnesium headshells and would like to swap some of these around from time to time.
    R2R: Studer A820 1/2 inch 2 track; Otari MTR-12 1/4 inch 2 track; Sony APR 5003; Sony APR 5002; Studer A807/II. Vinyl: Platine Verdier Allaerts MC1B/Schroeder Reference & Model 2 Decca C4E/Hadcock 228 TRON Seven Reference phono. Keith Monks MkII RCM Other analogue source: Nakamichi Dragon with ANT4066 mods. Amplification: TRON Meteor preamp TRON Voyager 20B SET power. Speakers: Avantgarde Duo. Digital: computing at last with Prism Sound Lyra 2 A2D converter

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