Screaming Sound FX Pedal

Just built a prusacaster? Why not not make a 3d printed FX pedal to go with it.

This model contains all the files you will need to get started from the 3d printed case to  a Gerber file of the pcb.

The case will print without supports as will the knobs, I have included some inlays that can be printed to glue into the relief to provide a dual colour version (maybe these could be arranged to make a multi colour print).

M3 heat set inserts are used to secure the lid and pcb, also to  provide tightening torque on the knobs (these only require a tiny amount of torque but be carful - im not 100% satisfied that their not too easy to jack out). 

If you want to customise the case there's a blank one here, perhaps use the text tool in Prusa Slicer to add your own text.

There's a step file if you need it complete with the pcb and offboard stuff 

it contains the following models i downloaded from Grabcad

https://grabcad.com/library/alpha-rv16af-20-1
https://grabcad.com/library/3pdt-switch-1
https://grabcad.com/library/pp3-6lr61-battery-1
https://grabcad.com/library/led-3mm-red-1
https://grabcad.com/library/a-1121-1-4-audio-jack-socket-1
https://grabcad.com/library/fender-output-jack-1
https://grabcad.com/library/connector-5-5x2-1-ds-223b-1

I've included the Ki CAD source and a Gerber file and bom.csv, please don't rip on me too much about the pcb its literally the first one I've ever made using EDA rather than etch resist and ferric chloride, i know it could be laid out tighter. The main motivation for me making this was to have a familiar first project to lean Ki CAD with. 

I've not gone so far as to list sources for all the components as there are many places to get them from and it is highly dependant on where you are.

Here's a good link showing how the 3pdt socket and other offboard components are wired 

https://tonefiend.com/diy/a-generic-stompbox-wiring-diagram/

(Note on the diagram on the link above it assumes output jack is grounded on  a metal case, that is not the case on a plastic case clearly so sleeve connection of output must be connected to ground)

I didn't design this circuit myself its a well trodden classic, that you will find in many of the sources above, i synthesised the bit i like best of each. But you will find the circuit is very close to the one originally at tonepad.

There are lots of resources for finding out about building FX pedals online that will help you with the wiring up if your not sure or want to try a different circuit.

https://www.diystompboxes.com/smfforum/

http://www.tonepad.com/

http://www.geofex.com/

https://generalguitargadgets.com/

Note - The pcb wont fit in the classic 1590B box shown in one of the photos (its for size comparison and linkage) , the printed case is a tiny bit larger than that.

Here are some of the previous fx that I built