[OT] Small rant of my own: I don't recall seeing ANY screwholes on any MOTM module, and I have a few. My Wiard Joystick on the other hand...I may have misread this post, and if I have I apologize. It is entirely possible to put Wiard modules behind an MOTM faceplate without screwholes, so the reason we don't see Wiard modules in MOTM format must be something else. Mike --- In ComputerVoltageSources@yahoogroups.com, "Grant Richter" <grichter@...> wrote: > > First, no offense to Chris for an excellent question. > > Don't talk to me about "no screw holes in the faceplate" that is why you don't see Wiard > modules in MOTM format. That idea is insulting to any designer. > > Spend your time thinking about MUSIC, forget the g*dd*mn screwholes, get some therapy > for your out of control OCD behavior, how many times do you wash your hands a > day?????????????????? (loud hissing of steam escaping from ears). > > I apologize for the rant, silly limitations really annoy me. > > There is no advantage to ANY panel mounted components being in hard copper on the PC > board. > > What if someone wants to use it for controlling dimmer packs for a hobby theater? > Then the board would be bench top mounted horizontally and the pots would be slide > pots. It could support both 0-10 volt packs and the MIDI controlled ones. > > What about using it to control servo laser scanners for a laserium light show? (those are > voltage outputs to current drivers) > > What if all the pots are force sensing resistors built into a dancers suit? > > What about if it is used for squib control to light the "Burning Man" on fire when > Interstellar Overdrive reaches the climax? > > OK, those are meant to be humorous examples, but also practical applications. > > I don't see an anvantage favoring any mounting position or potentiometer type, spacing or > placement. I would just use the Wiard pigtail pot assembly method. That is each pot, > switch or whatever has a dedicated 0.100 KK connector. You can always solder directly to > the PC pads and skip the connectors. > > I would use the extra space for as much perf board area as possible for hanging more > experimenters chips, sensors, high current servo drivers etc. > > We will have holes in the right spots for that MOTM metal bracket thingy. Can sombody > tell me what that spacing and hole size is? > > A 4 x 6 board will fit in a Frac-Rac. Is 6-7 inches too deep for MOTM and Doepfer racks? > > > > > --- In ComputerVoltageSources@yahoogroups.com, xamboldt <xamboldt@> wrote: > > > > Or... if pots aren't PCB-mounted, what panel components should be? > > MIDI Jacks? DIN? LEDs? We've already heard that DIN might not be > > something everyone would want... > > > > Would there be room for 4 pots and MIDI I/O? > > > > -Chris > > > > On Mar 10, 2006, at 3:10 PM, xamboldt wrote: > > > > > Can of worms warning! > > > > > > Should the PCB be laid out so as to allow PCB-mounted pots for > > > perhaps 4 or 6 of the controls? Different front panel formats could > > > be allowed for by simply doing point-to-point wiring instead of PCB > > > mounting the pots. The difficulty comes in deciding which format > > > would be used to dictate the spacing of holes for the PCB-mounted > > > pots. Both Blacet and MOTM have standards we could appropriate for > > > PCB-mounted pots. The CVS' pots (as spelled out by Grant) are grouped > > > in functional units of 4, and that is the typical max vertical > > > allowance of pots on an MOTM panel. Blacet has up to 6 maximum, but > > > plenty of designs have fewer pots. > > > > > > I guess someone had to bring it up.... :) > > > > > > -Chris > > > > > > > > > > > > > > I think we can use the Metalbox style 1900H knobs and Alpha pots > > > > for Frac-Rac. > > > > The jack spacing should accept either Switchcraft (Blacet) or > > > > 16PJ135 (Wiard) jacks. > > > > The 16PJ135 jacks wire up very neatly because of the ground tangs > > > > being in-line. > > > > The knurled nuts are designed to be assembled with fingernails, so > > > > that is one less tool > > > > you need. > > > > > >
Message
[OT]Re: Trial Faceplate Layout
2006-03-10 by Mike Marsh
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