How to built an effects pedal

Re: How to built an effects pedal

I think this is a cool post, and for the right DIYer, makes a lot of sense. But it is about building something you couldn't get anywhere else more than it is about saving money.

I have an Electrical Engineering degree and decades of practice at soldering. I recently began a music-related electronics project to build something that I cannot find for sale anywhere. My first attempt to breadboard the circuit (and write firmware for a microcontroller) amazed me when it actually worked as intended. Even more amazing to me was when my second iteration, soldered on proto-boards, also worked as intended. Since that time, I have been trying to build a compact, robust version of this circuit to put into an enclosure, without success. I've had traces lift off boards while being gently soldered, and had some builds that simply didn't work and defied my attempts to debug them. I am in quite a bit of money at this point, and I have at least a dozen failed builds sitting on the workbench.

The point is, this stuff isn't always easy. One cold solder joint, broken wire, or short circuit, and your pedal won't work as intended, or will degrade your signal. It takes a lot of practice to learn the mechanics of assembling someone else's circuit design, and a whole new level of investment if you want to modify anything.

I love doing this stuff, which is the only thing that keeps me at the workbench after so many failures. For most people, customizing a DIY pedal build is not a cost-effective way to get a reliable, gig-worthy pedal. It is, however, a fun way for some of us to expand our knowledge and feel more self-sufficient. I think the people who are knocking this thread are mainly concerned that you may be setting people up for major disappointment.
 
Re: How to built an effects pedal

From what I can tell from the pics the only thing I'd redo if I had to build it myself (especially if I was gonna give/sell it to someone) is shortening everything. Since your pots and rotary switch are all on top, you could get their wires quite short. By doing the same with the other ones (in and out that go to the switch and the ground/9v ones too) you get the board much less likely to move within the enclosure. Knowing this, if you ever need to go back, it's as simple as desoldering the last 4 connections (in/out/gnd/9v) to be able to completely lift the board 90 degrees and have complete access. Having to desolder them is a small price to pay for stability.

One more thing that I like (and I'm one of the very few) is using solid-core wire instead of stranded. The idea here is that once laid in place and neatly routed, they don't move anymore and "anchor" the board a lot more solidly. Takes a bit more practice to get things tidy but having 9-10-12, etc. solid-core wires holding the board down makes for a pedal which you never hear anything rattle in, therefore avoiding possible problems if it's dropped and components and wires coming eventually in contact with one another and possibly causing shorts.

That can seem a bit drastic or nit-picky but I want my own pedals to last and be as problem-free as ones I would buy new so...

Last but not least: I usually (there were exceptions) insert my board "components-up". There's nothign wrong with the opposite but make sure you insulate the back-plate of that pedal to avoid the joints shorting on the case.

I use solid core wire for everything. (No real preference, just had three spools of it on hand.) Plus, no tinning ends is awesome! I hear you on the shorter leads though . . . Less signal travel is always better.

Yeah, I always coat the back panel with electrical tape to keep shorts from happening. I just did components down because all the boss pedals I've taken apart were like that. Seemed like the way to go.
 
Re: How to built an effects pedal

I think this is a cool post, and for the right DIYer, makes a lot of sense. But it is about building something you couldn't get anywhere else more than it is about saving money.

I have an Electrical Engineering degree and decades of practice at soldering. I recently began a music-related electronics project to build something that I cannot find for sale anywhere. My first attempt to breadboard the circuit (and write firmware for a microcontroller) amazed me when it actually worked as intended. Even more amazing to me was when my second iteration, soldered on proto-boards, also worked as intended. Since that time, I have been trying to build a compact, robust version of this circuit to put into an enclosure, without success. I've had traces lift off boards while being gently soldered, and had some builds that simply didn't work and defied my attempts to debug them. I am in quite a bit of money at this point, and I have at least a dozen failed builds sitting on the workbench.

The point is, this stuff isn't always easy. One cold solder joint, broken wire, or short circuit, and your pedal won't work as intended, or will degrade your signal. It takes a lot of practice to learn the mechanics of assembling someone else's circuit design, and a whole new level of investment if you want to modify anything.

I love doing this stuff, which is the only thing that keeps me at the workbench after so many failures. For most people, customizing a DIY pedal build is not a cost-effective way to get a reliable, gig-worthy pedal. It is, however, a fun way for some of us to expand our knowledge and feel more self-sufficient. I think the people who are knocking this thread are mainly concerned that you may be setting people up for major disappointment.

I get what you're saying. . . FWIW, I've built six pedals in the last couple weeks, two worked right away, one I wired wrong and needed to fix, one had a small bridge in the circuit, one was grounding out to the chassis through the LED, and one I haven't figured out what's wrong with it yet. It's not always going to work the first time . . . But debugging is part of the learning experience.

Stick with it for a little while and you'll get it working. Key is to be more stubborn than the problem.
 
Back
Top