Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.9.3
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This information is for doing DIY, repaneling, and/or repairs on [[MOTM]] systems. It's not comprehensive, everyone has preferences, but lists the common/major/most-wanted parts in the MOTM format, and/or what sort of things will work.
[[File:MOTM panel mounting.jpg|thumb|200px|Detail of a MOTM panel mounting.]]
=== Specifications ===
MOTM panels use U, the [[19-inch rack]] unit for height and width. The height is 5U (8.75"), while the widths are in multiples of 1U (1.75"), with some fraction less to allow for manufacturing tolerances. The finish is baked-on two part Polane paint,<ref>[https://www.modwiggler.com/forum/viewtopic.php?t=60156 Where to get MOTM-style silkscreened panels made?], Mod Wiggler forum, May 2012</ref> giving it a crinkly look, and with labeling and scales in screen printed epoxy-ink.<ref>[http://synthtech.com/motm/info/ MOTM Info]</ref>
=== Blank panels ===
6061 aluminum alloy, T3 or T6 temper, is easy to come by, can be easily worked. Thickness usually ranges between 1.5
▲===Blank panels===
▲6061 aluminum alloy, T3 or T6 temper, is easy to come by, can be easily worked. Thickness usually ranges between 1.5 mm (0.62") and 2.5 mm (0.12") but see what is standard for the format, e.g. a thickness of 2.28 mm (0.09") for 4U.<ref>[https://www.muffwiggler.com/forum/viewtopic.php?t=86107 What type of aluminium is used for faceplates?], Muff Wiggler forum, June 2013</ref><ref>[https://www.muffwiggler.com/forum/viewtopic.php?t=51475 Aluminum Panel Guage???]</ref>
Blank panels can be purchased from:
* [http://bridechamber.com/ Bridechamber] 1, 2, 3, and 4U
* [http://www.synthtech.com/ Synthesis Technology] 1 and 2U
=== Project panels ===
Panels for specific projects (CGS, I. Fritz, etc.) can be purchased from:
* [http://bridechamber.com/ Bridechamber]
=== Custom panels ===
Custom panels can be manufactured by:
* [http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm Re:Synthesis], UK
* [http://www.frontpanelexpress.com/ Front Panel Express], USA
* [http://www.schaeffer-ag.de/ Schaeffer], EU
== Panels
Avoid cheap parts, especially if mechanical. Invest in quality, you always get what you pay for. Otherwise your entire system might later develop intermittent faults.<ref>
=== Knobs ===
MOTM uses ALCO PKES90B1/4 knobs, available at:
* [http://www.synthtech.com/ Synthesis Technology]
=== Potentiometers ===
MOTM uses Spectrol 149 pots, available at:
* [http://www.synthtech.com/ Synthesis Technology]
=== Switches ===
NKK toggle switches with bat handles are the closest fit.<ref>Dave Bradley's [http://www.hotrodmotm.com/parts_list.htm Parts list and supplier index for typical MOTM hardware]</ref>
* SPDT: NKK M2102ES1W01 (Allied: 870-8646)
* SPDT center off: NKK M2103ES1W01 (Allied: 870-8647)
* DPDT: NKK M2022ES1W01 (Allied: 870-8652)
* DPDT center off: NKK M2023ES1W01 (Allied: 870-8653)
=== Jacks ===
MOTM uses Switchcraft 112A 1/4" jacks.
=== LEDs ===
MOTM uses
* Red: Lumex SSI-LXH387ID (DigiKey: 67-1155-ND)
* Green: Lumex SSI-LXH387GD (DigiKey: 67-1156-ND)
* Yellow: Lumex SSI-LXH387YD (DigiKey: 67-1157-ND)
== PCB/Panel mounting ==
=== PCB mounting ===
Most MOTM PCBs are about 4.5" by 5.5".<ref>[https://www.modwiggler.com/forum/viewtopic.php?t=71563 MOTM pcb in frac rack format?], Mod Wiggler forum, November 2012</ref> These are generally mounted perpendicular to the panel with [[stooge brackets]] affixed by the pots or jacks, available at:
* [http://bridechamber.com/Brackets.html Bridechamber]
* [https://web.archive.org/web/20180228193533/http://synthcube.com/cart/index.php?route=product
== Internal connectors ==
Do not mix dissimilar metal terminals and headers. The contact resistance will go up with dissimilar metals, causing all sorts of problems.<ref>[http://www.pinrepair.com/connect/ Molex Connectors Explained, as used in Pinball.]</ref>
<!-- The Molex KK crimp connector is used in synthesizers by [[CGS]], [[Cyndustries]], [[EFM]], [[Encore Electronics]], [[Metalbox]], [[Oakley Sound Systems]] and [[Synthesis Technology]].<ref>[http://search.retrosynth.com/synth-diy/search/lookit.cgi?-v0503.816 Re: [sdiy] Blacet/Paia power header part number?] by Cynthia Webster, 21 Mar 2005</ref>
MOTM modules and power distribution boards are connected using 4-pin [[MTA Connector]]-156 connectors and 18 awg wire.<ref name="mw1739">
{| class="wikitable"
!Pin!!Voltage
Line 64:
|4||-15
|}
* Female cable mount: 640426-4 (Mouser: 571-640-4264)
* Male PCB mount: 640445-4 (Mouser: 571-6404454)
* [https://www.mouser.co.uk/ProductDetail/TE-Connectivity/644752-4?qs=ZDXmSm13591UQpdE9ubGWQ%3D%3D#.Wuyw9VR2OCE TE Connectivity 4 pin MTA 156 header] (Mouser: 571-6404454)
===Interconnections===▼
▲=== Interconnections ===
Oakley Sound Systems designs use either MTA-100 or Molex KK 0.1" for board interconnects.<ref>Oakley Sound Systems:[http://www.oakleysound.com/construct.pdf Construction Guide]</ref>
{{From Muff Wiggler wiki|MOTM DIY resources}} ▼
==
* [[MU parts]]
== References ==
{{reflist}}
* [
== External links ==
* Dave Bradley's very extensive [http://www.hotrodmotm.com/parts_list.htm Parts list and supplier index for typical MOTM hardware].
Line 79 ⟶ 86:
* [http://www.dragonflyalley.com/billAndWillMOTMSynth.htm Bill and Will's MOTM Analog Synthesizer]
* Modular Synthesis, LLC:[http://modularsynthesis.com/modules/parts/parts.htm Parts and construction information]
=== Schematics, PCB overlays, BOMs and assembly instructions ===
* [http://yusynth.net/index_en.php YuSynth]
* [https://web.archive.org/web/20060111050127/http://www.musicfromouterspace.com/ Music From Outer Space]
* [https://web.archive.org/web/20170430151727/http://cgs.synth.net/ CGS]
=== Stooge brackets ===
* [https://web.archive.org/web/20101022002423/http://www.wiseguysynth.com/larry/brackets/modular_brackets.htm PCB mounting brackets]
* [http://www.synthtech.com/tech.html Detailed CAD drawings of MOTM parts/brackets].
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