Vintage Simmons Drums (UK) Users Group

> I’m wondering if I could have some input or even experience from users
> that have tried to float the bus-board on SDS7?
>
> Here is what I’m thinking. As we all know when the bus-board is rigid as
> Simmons intended it to be voice boards will lose contact when chassis is
> warped. What will happen if the bus-board is given the opportunity to
> flex? Here the rather thin PCB (for its size and function) might come to
> our advance as it does twist quite easily without much force.
>
> The general idea is that we put pressure from back of bus-board and let
> it warp rather than forcing voice boards with wrong angle into the
> bus-board.
>
> For practical implementation some patience with a Dremel cutting disk is
> needed to remove the front lips for the bus-board rails inside the lid.
> Leaving the backside of the rails where we glue on foam or try out some
> soft rubber strips for (car) doors.
>
> At the bottom of the bus-board I’m wondering if screws can be replaced
> with those anti vibration/flexible silicone rubber pins popular on
> computer cooling fans?
>
> For this to work ALL voice boards and CPU/memory MUST have the key
> inserts between pin 18-19 in place. Some experimenting to get
> correct/even back and front pressure will be expected.
>
> Appreciate all comments. I’ll be surprised if similar isn’t already
> implemented and tested in some way or another past three decades.
>
> TIA
> Best
> Hans
>
>
>
> No virus found in this message.
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> Version: 2016.0.7539 / Virus Database: 4545/12048 - Release Date: 04/16/16
>

> I agree with that logic Jesper J Sadly on my 9 voice I have to reseat at
> least one voice, usually two or three after lifting the unit from the
> table.
>
> I\u2019m missing most of the key inserts, but I\u2019ve narrowed it down to not be
> the main problem. Although if I float the bus-board I need to figure out
> a way to make me some new keys without spilling glue all over the contacts.
>
> While thinking of mods. Can I ask if someone have addressed heat issue
> that come with more modules? I\u2019m thinking of possible mechanically
> couple the heat sink on the power supply to chassis to lead heat out of
> the box? Just to add some 10-20 years life to the silicon inside.
>
> Hans
>
> *Fra:*Simmons_Drums@yahoogroups.com
> <mailto:Simmons_Drums@yahoogroups.com>
> [mailto:Simmons_Drums@yahoogroups.com]
> *Sendt:* 17. april 2016 11:30
> *Til:* Simmons_Drums@yahoogroups.com <mailto:Simmons_Drums@yahoogroups.com>
> *Emne:* [Simmons Drums] Re: [Simmons Drums] SDS7 \u2013 Bus-board float mounting
>
> Hi,
>
> my 12-voice SDS-7 have never displayed any contact issues so I'm
> thinking: why fixing something that ain't broken? But on the other hand,
> comparing to modular synthesizers I can get the benefits.
>
> Keep us posted if you decide to go through with the plan.
>
> --
> electronically yours, jesper
>
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se <http://www.electronic-obsession.se>
>
> ---
>
> Angaudlinn on iTunes:
> https://itunes.apple.com/us/artist/angaudlinn/id582356650
>
> Angaudlinn's playlist p� Spotify:
> http://open.spotify.com/user/simplyanalogue/playlist/540Srd3zA15pK7G1S8qLHo
>
> Angaudlinn on facebook:
> https://www.facebook.com/Angaudlinn
>
> Den 2016-04-16 kl. 23:59, skrev hr.public@...
> <mailto:hr.public@...>[Simmons_Drums]:
>> I\u2019m wondering if I could have some input or even experience from users
>> that have tried to float the bus-board on SDS7?
>  >
>  > Here is what I\u2019m thinking. As we all know when the bus-board is rigid as
>  > Simmons intended it to be voice boards will lose contact when chassis is
>  > warped. What will happen if the bus-board is given the opportunity to
>  > flex? Here the rather thin PCB (for its size and function) might come to
>  > our advance as it does twist quite easily without much force.
>  >
>  > The general idea is that we put pressure from back of bus-board and let
>  > it warp rather than forcing voice boards with wrong angle into the
>  > bus-board.
>  >
>  > For practical implementation some patience with a Dremel cutting disk is
>  > needed to remove the front lips for the bus-board rails inside the lid.
>  > Leaving the backside of the rails where we glue on foam or try out some
>  > soft rubber strips for (car) doors.
>  >
>  > At the bottom of the bus-board I\u2019m wondering if screws can be replaced
>  > with those anti vibration/flexible silicone rubber pins popular on
>  > computer cooling fans?
>  >
>  > For this to work ALL voice boards and CPU/memory MUST have the key
>  > inserts between pin 18-19 in place. Some experimenting to get
>  > correct/even back and front pressure will be expected.
>  >
>  > Appreciate all comments. I\u2019ll be surprised if similar isn\u2019t already
>  > implemented and tested in some way or another past three decades.
>  >
>  > TIA
>  > Best
>  > Hans
>  >

> I agree with that logic Jesper J Sadly on my 9 voice I have to reseat at
> least one voice, usually two or three after lifting the unit from the
> table.
>
> I’m missing most of the key inserts, but I’ve narrowed it down to not be
> the main problem. Although if I float the bus-board I need to figure out
> a way to make me some new keys without spilling glue all over the contacts.
>
> While thinking of mods. Can I ask if someone have addressed heat issue
> that come with more modules? I’m thinking of possible mechanically
> couple the heat sink on the power supply to chassis to lead heat out of
> the box? Just to add some 10-20 years life to the silicon inside.
>
> Hans
>
> *Fra:*Simmons_Drums@yahoogroups.com
> <mailto:Simmons_Drums@yahoogroups.com>
> [mailto:Simmons_Drums@yahoogroups.com]
> *Sendt:* 17. april 2016 11:30
> *Til:* Simmons_Drums@yahoogroups.com <mailto:Simmons_Drums@yahoogroups.com>
> *Emne:* [Simmons Drums] Re: [Simmons Drums] SDS7 – Bus-board float mounting
>
> Hi,
>
> my 12-voice SDS-7 have never displayed any contact issues so I'm
> thinking: why fixing something that ain't broken? But on the other hand,
> comparing to modular synthesizers I can get the benefits.
>
> Keep us posted if you decide to go through with the plan.
>
> --
> electronically yours, jesper
>
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se <http://www.electronic-obsession.se>
>
> ---
>
> Angaudlinn on iTunes:
> https://itunes.apple.com/us/artist/angaudlinn/id582356650
>
> Angaudlinn's playlist på Spotify:
> http://open.spotify.com/user/simplyanalogue/playlist/540Srd3zA15pK7G1S8qLHo
>
> Angaudlinn on facebook:
> https://www.facebook.com/Angaudlinn
>
> Den 2016-04-16 kl. 23:59, skrev hr.public@...
> <mailto:hr.public@...>[Simmons_Drums]:
>> I’m wondering if I could have some input or even experience from users
>> that have tried to float the bus-board on SDS7?
> >
> > Here is what I’m thinking. As we all know when the bus-board is rigid as
> > Simmons intended it to be voice boards will lose contact when chassis is
> > warped. What will happen if the bus-board is given the opportunity to
> > flex? Here the rather thin PCB (for its size and function) might come to
> > our advance as it does twist quite easily without much force.
> >
> > The general idea is that we put pressure from back of bus-board and let
> > it warp rather than forcing voice boards with wrong angle into the
> > bus-board.
> >
> > For practical implementation some patience with a Dremel cutting disk is
> > needed to remove the front lips for the bus-board rails inside the lid.
> > Leaving the backside of the rails where we glue on foam or try out some
> > soft rubber strips for (car) doors.
> >
> > At the bottom of the bus-board I’m wondering if screws can be replaced
> > with those anti vibration/flexible silicone rubber pins popular on
> > computer cooling fans?
> >
> > For this to work ALL voice boards and CPU/memory MUST have the key
> > inserts between pin 18-19 in place. Some experimenting to get
> > correct/even back and front pressure will be expected.
> >
> > Appreciate all comments. I’ll be surprised if similar isn’t already
> > implemented and tested in some way or another past three decades.
> >
> > TIA
> > Best
> > Hans
> >

      From: "mr_adams_beard@... [Simmons_Drums]" <Simmons_Drums@yahoogroups.com>
 To: Simmons_Drums@yahoogroups.com 
 Sent: Saturday, 30 April 2016, 16:32
 Subject: Re: SV: [Simmons Drums] Re: [Simmons Drums] Re: [Simmons Drums] SDS7 – Bus-board float mounting
   
    I have 3D printing experience of Simmons parts. I've designed and printed an updated SDSV pad clamp and clips to replace broken parts on the SDS9 MK IV pads shells.

From your picture it looks pretty straight forward but I'd have to see it in person to measure it up and design a CAD model for it.

See group album https://groups.yahoo.com/neo/groups/Simmons_Drums/photos/albums/1900321169  #yiv7605289190 #yiv7605289190 -- #yiv7605289190ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv7605289190 #yiv7605289190ygrp-mkp hr {border:1px solid #d8d8d8;}#yiv7605289190 #yiv7605289190ygrp-mkp #yiv7605289190hd {color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;}#yiv7605289190 #yiv7605289190ygrp-mkp #yiv7605289190ads {margin-bottom:10px;}#yiv7605289190 #yiv7605289190ygrp-mkp .yiv7605289190ad {padding:0 0;}#yiv7605289190 #yiv7605289190ygrp-mkp .yiv7605289190ad p {margin:0;}#yiv7605289190 #yiv7605289190ygrp-mkp .yiv7605289190ad a {color:#0000ff;text-decoration:none;}#yiv7605289190 #yiv7605289190ygrp-sponsor #yiv7605289190ygrp-lc {font-family:Arial;}#yiv7605289190 #yiv7605289190ygrp-sponsor #yiv7605289190ygrp-lc #yiv7605289190hd {margin:10px 0px;font-weight:700;font-size:78%;line-height:122%;}#yiv7605289190 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>
>
> This is great!
>
> The thing about the MTM knobs is the shaft which I believe is not
> consistent with any other Simmons knob. I don't have an MTX9 or SDS1000
> but I think they are quite like the SDE knobs but with a longer shaft,
> whereas the SPM knobs don't have a shaft at all.
>
> Where are you based?
>
>
> ------------------------------------------------------------------------
> *From:* "mr_adams_beard@... [Simmons_Drums]"
> <Simmons_Drums@yahoogroups.com>
> *To:* Simmons_Drums@yahoogroups.com
> *Sent:* Sunday, 1 May 2016, 14:15
> *Subject:* Re: SV: [Simmons Drums] Re: [Simmons Drums] Re: [Simmons
> Drums] SDS7 \u2013 Bus-board float mounting
>
>
> Mocked-up an MTM style knob from a picture of an MTX9/SDS-1000 one.
> Would definitely need to see one in person to get accurate dimensions
> though. Photo added to 3D Printed Simmons Parts Album.
>
>
> 
>
> No virus found in this message.
> Checked by AVG - www.avg.com <http://www.avg.com>
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>