Knocking a large amp footswitch down to size

  • Thread starter Thread starter BSRIAudio
  • Start date Start date
BSRIAudio

BSRIAudio

Active member
This weekend I reworked my noisecore band board onto a Pedaltrain 3 so I would have room for some extra pedals and a footswitch for my amp that does more than just switch the channels.

Here is the reworked board. All assembled with dual lock to keep the pedals rock solid and keep the parts of the board that dont have pedals on them free of dirt-collecting fuzzy velcro. You can pick up the whole 20-pound board by any one pedal and nothing budges. Its pretty awesome.
E463C982-7500-485C-B82A-AB49FF5B382E-8958-0000076CDBDEF935.jpg


The space below the reverb and delay is for the amp footswitch. Here is what should go there:
A2893F57-7112-47D9-927B-7153D3EE57C3-696-000000A0AAA66737.jpg


The stock footswitch has a few problems though. Its really deep and the DIN connector is in the middle of the back so the cable wont fit into the footswitch if its on the board. Basically, I cant use it with this board. But I knew that going in. Fortunately, I have a solution.
F59D980E-F075-402C-8213-EE5FD65EB6F6-696-000000A0B9D24630.jpg


Mammoth recently released this long cast enclosure they call a "looper" enclosure. To me it looks like the answer for anyone with a big amp footswitch and a pedaltrain board with an extra slat. The depth is almost exactly the same as a pedaltrain slat depth and the width is wide enough to fit four footswitches which generally covers most possible amp options.
DBF02455-9C6F-4950-8F7E-AA8E4CD8F294-696-0000009FF00F52F6.jpg


Compared to the original footswitch this one is a little over half as deep so we're saving a ton of room using one of these.
69ADF438-3541-4DD8-9677-8FF0E321B464-696-000000A00EC24E2B.jpg

33888674-7A17-4311-BFD0-E01D0D797D39-696-000000A029059139.jpg


So here it is taped up and laid out. Ready for the drill press which I will take care of tonight.
49087A61-85C2-4185-B5BB-EAD2D905AAE6-696-0000009FC6CAE87F.jpg

0E7485C9-60C9-44F5-951B-05BC8190FAF2-696-0000009FD755E7B4.jpg


The new switch will have a 5-pin DIN connector on the left side which will allow me to wire a midi cable into my pedalboard snake and run all my cables with one compact assembly. The input and loop cables go to a breakout box at the top of the board so everything will be extremely quick to set up on stage.

Finally, here is the wiring diagram I made from the stock footswitch.
SplawnFS.jpg


Back when I have the finished product. Also need to wire up the cable to go into the snake. That will be a DIN connector on one end and the cable breaks out into a pair of TRS plugs on the amp end.
 
Looks like an awesome project! Just ordered up mine, I'm about to handwire a quickrod, just need a bit more info from the schematic. Trying to see how the footswitch pcb wires in to the main board from the optocouplers. Once I figure that out, I'm off to the races!
 
I loves me some threads like this! Can't wait to see the final product.
 
Just one question about the layout. Is the green wire going to the shield? Midi cables (4 conductor w/shield) have the shield connected to pin 2 of the connector (middle pin). Just want to make sure I have the correct wire on the tip/ring of the stereo TRS plugs. Scott Splawn has the TRS plugs wired up with plug (A) having solo boost on the tip, and OD1/OD2 on the ring; and plug (B) having clean/OD on the tip, and mode on the ring...with the shield grounding to the sleeve of each plug. Just trying to decipher which wire you have going to the shield.
 
Kudos for taking up the project but why don't you just add another DIN receptacle somewhere on the side of the existing pedal ?

Giga
 
great (five year-old) post! :) i used it just last month to build my own Splawn mini footswitch, that uses a standard MIDI cable.

Detwings1":20lcscej said:
Just one question about the layout. Is the green wire going to the shield? Midi cables (4 conductor w/shield) have the shield connected to pin 2 of the connector (middle pin).
the long red wire is going to the shield / the long red is the ground, because it's connected to the negative leg of the LEDs. (in the design of a proprietary thing like a footswitch, the cable pin assignments in my experience often don't follow the universal assignments that they do for broadly compatible things like MIDI devices.)

i would recommend using a voltmeter and its connectivity/diode setting to trace exactly which contacts of plugs A & B go to which pins on the jack inside the footswitch. that'll let you double-check that yours is the same as the OP's diagram, or let you draw your own diagram if you want. :rock:
 
I just ordered one of the trem pedal kits off of Mammoth. Great site, and cool project!
 
That’s what I thought, red to shield. I asked only because you were talking about using a midi cable. I suppose it doesn’t matter what pin the shield goes to, as long as your cable is wired the same way to the stereo plugs. Finished up my cable yesterday, working on the footswitch now. I’m in prototype mode for a new amp, and I like the Splawn footswitch. Just trying to get my switching down now, I want to use vactrols (vtl5c1), but not sure exactly how I want to hook them up. Relays are too loud. There are 100,000 ideas on the web, none of which seem to apply to exactly what I want, so we’ll see how it goes!!
 
Good looking board. Kind of a shame the OP never updated the post with the finished product.
 
Oblivion DC":1exrz7e9 said:
Good looking board. Kind of a shame the OP never updated the post with the finished product.

Post never got a reply. No one cared until 4 years later.
 
Marykelly":240v2g2d said:
Oblivion DC":240v2g2d said:
Good looking board. Kind of a shame the OP never updated the post with the finished product.

Post never got a reply. No one cared until 4 years later.
Sometimes posts just slip through the cracks. I can see how it might bother you but I wouldn’t take it personally. :thumbsup:
 
Oblivion DC":3eq6m9op said:
Marykelly":3eq6m9op said:
Oblivion DC":3eq6m9op said:
Good looking board. Kind of a shame the OP never updated the post with the finished product.

Post never got a reply. No one cared until 4 years later.
Sometimes posts just slip through the cracks. I can see how it might bother you but I wouldn’t take it personally. :thumbsup:

Oh Im not bothered I was explaining why the post didn't get updated.
 
Back
Top