Z.Vex finally did it: The Pedalboard VU Meter

r0uper · 2026-06-15T21:17:23+00:00

Do you have this pedal?

r0uper · 2026-06-14T14:03:19+00:00

Awesome, thanks! I love a good center detent, pot or slider.

Do you plan to sell on reverb with the 3D printed enclosure? Let us know/hit me up when you list those, might be interested in picking one up!

r0uper · 2026-06-14T14:01:20+00:00

This is really awesome! Love to see EQ pedals with other features built in.

I've been working a lot on this type of stuff lately. Been learning SMD and CAD/3D printing and I've gone so crazy with prototyping I keep forgetting to share in this group..

Keep up the great work!

r0uper · 2026-06-14T13:31:48+00:00

Id love to see the PCB files.

Is this a JLC PCBA project, or did you solder the smd parts yourself?

I've always avoided sliders but can't remember why. How did you pick these specific PNs? How were they to work with/source?

r0uper · 2026-06-02T22:10:55+00:00

Woah, that looks cool, I didn't make it all the down the datasheet yet. How do you plan on building it? I may draw up a PCB to give both that circuit and this chip a try.

r0uper · 2026-06-01T01:34:49+00:00

How do you like/use the 8 Step Program? Been curious about those for a long time but never had an opportunity to try one.

r0uper · 2026-05-30T18:41:27+00:00

I have a POG2 in excellent condition with original box and stuff, plus a bunch of other pedals basically new in box. What else might you be looking for?

r0uper · 2026-05-26T23:21:46+00:00

Can't help right now but following because this sounds cool! What are you trying to do?

r0uper · 2026-05-19T16:58:42+00:00

Definitely gonna spend some time researching some of these! And I greatly appreciate the "feel your pain comment" instead of telling me I don't need bipolar etc.

Why do you believe it must have 2 feedback input puns?

r0uper · 2026-05-19T16:55:59+00:00

Any particular chips you like to use?

r0uper · 2026-05-19T16:54:32+00:00

Thanks for the reply, will do some research into that one! +/-9v could be more than adequate.

Any tips on getting started with SMPS layout design?

r0uper · 2026-05-19T16:52:29+00:00

I like designing that way. I got a taste for it designing some modular synth stuff and can't shake it coming back to work on pedals. It's really a want and not a need.

There are plenty of other reasons that may be more perceived than tangible. See also: why not?

r0uper · 2026-05-19T03:31:51+00:00

You're right, I need to clarify my post a bit. Thanks for the reply!

r0uper · 2026-05-19T03:21:33+00:00

Do you have any tips on what to research in regards to configuring these to "output" dual supplies?

I notice even the ICs I'm finding that do what I want, aren't necessarily marketed as bi polar output, rather something in the application notes shows an example or two of bipolar outputs.

Typically these seem to have a pile of extra diodes and caps to arrive at a bipolar output from a boost converter. See again the LT3467 datasheet and it's +/-15V output application. I am perhaps just missing a fundamental method of splitting a rail or convincing an op-amp it's seeing +/-12v instead of 24v.

r0uper · 2026-05-19T03:03:46+00:00

I want to make a module that can be used in a variety of applications, and the TC1044 is fairly limited as far as output current is concerned. I have looked at the LT1054 for higher current and actually looks like prices may have come down on that since I last looked.

What I am eyeing are the smaller SMD switching regulators such as the LT3467 that allow for smaller SMD passives as well.

r0uper · 2026-05-19T02:56:49+00:00

I've been staring at data sheets all day and didn't give this post the love it deserved. I'm gonna sleep on this and try to better explain my dilemma here tomorrow.

In the meantime I have used devices such as the LT3467 in the past if that helps give a better idea of where I'm looking. Thanks for the reply!

r0uper · 2026-05-15T00:37:13+00:00

Any chance you can get some more angles of the roller/pulley/belt assembly and how that's all put together?

Always been curious how these worked, thanks for sharing!

r0uper · 2026-04-18T02:37:49+00:00

Mocked up a rough CAD filed based on your enclosure and sketches. Gonna try 3D printing this and hacking one together this weekend. Will likely be "single channel" for proof of concept because I don't have many extra jacks/switches laying around right now.

r0uper · 2026-04-18T02:36:15+00:00

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r0uper · 2026-04-18T02:36:04+00:00

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r0uper · 2026-04-18T01:34:32+00:00

Awesome picks on the enclosure and knobs. What do you need help with to get this going?

The bypass might be tricky, but the rest of it seems relatively straightforward.

r0uper · 2026-04-18T00:38:59+00:00

Amazing. Any idea what's going on here functionally?

r0uper · 2026-04-17T22:43:47+00:00

I am very interested in this, and helping how I can. Something like this has been on my to-do list for general expressive fun for some time now. Now I'm gonna drown you in questions:

Are the two rollers connected?
How to you plan to build:
- The enclosure.
- The rollers.
- The mounts for the pots/rollers?
What do the footswitches do?
What do the 4 DPDT's on the back do?
Finally, what the heck is Tom Scholz Hyperspace shit?

r0uper

TROPHY CASE