Combining 5U MOTM and Synthesizers.com modules in the same cabinet: Difference between revisions

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'''5U''' is athe term used for modules or equipment that is five standard [[19-inch rack|rack unit]]s unithigh. 5U modules typically use 1/4" [[connectors]] and plugs for [[patch]]ing.
 
==Dimensions==
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The width of 5U modules varies. Some manufacturers use the width of the original Moog modules (1U = 2.125"), and as such, these fall into a sub-format called [[MU]] (for Moog Unit). MU module manufacturers include [[Synthesizers.com]], [[Club Of The Knobs]], [[Krisp1]], [[Mos-lab]], [[Moon Modular ]], [[STG Sound Lab]], and [[ModuSonics]]. Other 5U manufacturers, like [[Synthesis Technology]] [[MOTM]], [[Oakley Sound Systems]] and [[Modcan B-series]], use a slightly narrower width, (a 2U wide panel is 3.485 inches wide). This is an important factor in mounting the modules. Since the module widths are different, the mounting holes are also in different positions. Thus, MU and 5U modules can't be mounted in the same row in racks that use metal pre-tapped holes.
 
==MOTM/Modcan B-series in a Synthesizers.com cabinet==
==Mounting Considerations==
Here's[[File:74_dotcomlip_2.jpg|thumb|right|350px|middle|The someSynthesizers.com informationformat onmodule mixingside lip.]]This section only discusses wooden cabinets, not racks. To fit MOTM-format modules, (which includesincluding Modcan b B-series), into a wooden Synthesizers.com cabinet., This section only discusses wooden cabinets - not racks. Therethere are three main things to consider. First, how to physically mount the MOTM-format modules. Second, what number of each module- format can be fitted?. Third, isthe power considerations, which(see is discussed abovebelow).
 
===Height Issues===
[[File:74_motmnolip_1.jpg|thumb|right|350px|middle|The MOTM module is straight with no .]]Synthesizers.com and MOTM-format modules are ''technically'' the same height. The real difference is the fact that Synthesizers.com-format modules have a lip aton one side. This is to mount the topPCB andperpendicular bottomto whichthe MOTMfront doesn't.panel, Here'ssimplifying aconstruction pictureand ofcutting thedown Synthesizerson hardware cost.com<ref>Harmony lipCentral:[http://www.harmonycentral.com/t5/keys-synths-amp-samplers/apparently-i-m-building-synth-modules-now/td-p/8209099 Apparently I'm building synth modules now.]</ref>
 
[[File:74_motmmindthegap_1.jpg|thumb|right|350px|middle|The red shade highlights the gap left in order to centre the module.]]The mounting holes of MOTM-format modules are also placed at a slightly different vertical height to those on Synthesizer Dot Com modules. This means that if placing a MOTM-format module on the floor of a Synthesizer Dot Com cabinet its mounting holes will not reach the top rail completely. To counter this, make sure that any MOTM-format modules are centered in the rails before drilling mounting holes for them. [[File:74_mountingholes_1.jpg|thumb|right|350px|middle|The pictureMOTM belowholes showsare marked in green and Synthesizers.com in red.]] Mark the gapholes leftmaking sure the module is centered and drill the hole with a 1mm or 2mm bit. Then screw in orderone of the mounting screws to centretap the hole before mounting the module. The MOTM mounting holes will be closer to the edge of the rails than the Synthesizers.com ones.[[File:74_happytogether_1.jpg|thumb|right|350px|middle|The two formats mounted in the same case.]]
[[File:74_dotcomlip_2.jpg]]
 
===Width Issuesissues===
And here's a picture of a MOTM module showing that the module is straight with no lip at the top or bottom:
To consider how many of each module fit in the case, the widths of single space (1U) modules are 2.125 inches for Synthesizers.com modules and 1.75 inches for MOTM. 22-space Synthesizers.com cabinets have rails that are 46.75 inches wide. The table below shows all the combinations of Synthesizers.com format modules and MOTM-format modules you can have in a 22-space Synthesizers.com row. Specifically, it shows, (all dimensions in inches):
 
:The number of single space Synthesizers.com format modules.
[[File:74_motmnolip_1.jpg]]
:The resulting space remaining (in inches) inthe cabinet.
 
:The number of (whole) MOTM format units available.
The mounting holes of MOTM-format modules are also placed at a slightly different vertical height to those on Synthesizer Dot Com modules. This means that if placing a MOTM-format module on the floor of a Synthesizer Dot Com cabinet its mounting holes will not reach the top rail completely. To counter this, make sure that any MOTM-format modules are centered in the rails before drilling mounting holes for them. The picture below shows in red the gap left in order to centre the module.
:theThe gap (in inches) that will remain when the case is full.
 
[[File:74_motmmindthegap_1.jpg]]
 
Actually mounting MOTM modules is fairly straighforward. The rails of Synthesizers.com cabinets are made of wood and can be easily drilled out for MOTM. The holes for MOTM do not interfere with the Synthesizers.com holes that are already present. Mark the holes making sure the module is centered as mentioned above. Drill the hole with a 1mm or 2mm bit. Then screw in one of the mounting screws to "tap" the hole before mounting the module. The MOTM mounting holes will be closer to the edge of the rails than the Synthesizers.com ones. The picture below has MOTM holes marked in green and Synthesizers.com in red:
 
[[File:74_mountingholes_1.jpg]]
 
Here's a picture of the two formats together (don't worry about the gap here - The modules pulled to take the mounting hole photos hadn't been replaced yet.)
 
[[File:74_happytogether_1.jpg]]
 
===Width Issues===
To consider how many of each module fit in the case, the widths of single space modules are as follows:
:1U Synthesizers.com = 2.125 inches
:1U MOTM = 1.75 inches
 
22-space Synthesizers.com cabinets have rails that are 46.75 inches wide.
 
The table below shows all the combinations of Synthesizers.com format modules and MOTM-format modules you can have in a 22-space Synthesizers.com row. Specifically, it shows:
:number of single space Synthesizers.com format modules
:resulting space remaining (in inches) in cabinet
:number of (whole) MOTM format units available
:the gap (in inches) that will remain when the case is full
 
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Some combinations work better than others. EightWith eight Synthesizers.com format and seventeen MOTM-format spaces is the magic combination where there areis no gap at all. Note that this table will only work if all the MOTM-format modules are mounted in a block together and the Synthesizers.com modules together. Putting them in-between each other would, if you used the pre-drilleda Synthesizers.com case with pre-drilled mounting holes, mean more gaps. Different Synthesizers.com mounting holes can be drilled in the relevant place(s) to leave the smallest possible gap.<ref>Muff's Modules & More:[http://www.muffwiggler.com/forum/viewtopic.php?t=6598 motm/modcan b series in a dotcom cabinet]</ref>
 
<ref>Muff's Modules & More:[http://www.muffwiggler.com/forum/viewtopic.php?t=6598 motm/modcan b series in a dotcom cabinet]</ref>
 
==Power Requirementsconsiderations==
All modules from the 5U manufacturers need a +/- 15v power supply. [[Frac Rack]] modules and [[Wiard Synthesizer Company|Wiard]] 300 series also use +/- 15v. Some 5U manufacturers also need a 5v source, specifically Synthesizers.com and some of the newer MOTM modules from Synthesis Technology, e.g. the [[MOTM-650]].
 
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The other option would be to use a Cyndustries power distribution board, which provides connectors for 4 pin MOTM and 3 pin Modcan/Cyndustries. This could be wired to a suitable power supply using binding posts as with the MOTM distribution boards.
 
[[File:74 combodistro 174_combodistro_1.gif]]
 
===STG Soundlabs Distro Board ===
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