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Rack Effects Build

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Re: Rack Effects Build

PostPosted: Thu Sep 27, 2018 10:37 am
by Luke W
With the rack end up to date, I thought I'd add a few bits about the switch pedal I'm building for the front end. I'm still working on this at the moment, progress with the whole build in general is a bit slower again recently due to work and various other projects.

First up, all the bits!
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A bit more action with the punch, this time with a bit of a improvised leverage assistance.
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And with the first couple of switches in, and a few holes drilled ready for some TS sockets.
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Re: Rack Effects Build

PostPosted: Thu Sep 27, 2018 3:14 pm
by Hewesy
Blimey, that's a box! I think Pete Cornish just said "mate that's a bit OTT" :D

Looking forward to seeing how this works, especially your wiring diagram for swapping pre/post (if you care to share it of course!).

Hewesy

Re: Rack Effects Build

PostPosted: Thu Sep 27, 2018 3:56 pm
by Luke W
Hewesy wrote:Looking forward to seeing how this works

Me too! :?

My background is in audio work, so everything up until this point has been work that I'm experienced in, but this is a bit newer to me (I'm avoiding calling it electronics as it's way too simple to deserve that title!) so I'm very much working things out as I go along with this bit.

I found the diagram for order switching online, so can't take any credit for that. I've just combined it with an A/B switch either side, one before to switch between two guitars, and one after to switch between the amp and tuner outputs. There's also a volume pot thrown after one of the inputs so I can match the levels between two guitars.

And yes, it's colourful. My thinking is that if it doesn't work then at least it's purple.

Re: Rack Effects Build

PostPosted: Thu Sep 27, 2018 8:36 pm
by Martin Walker
Hi Luke W!

Love your tubular punch leverage amplifier (patent pending) 8-)

What a great idea (especially since you're punching through 2mm steel plate :headbang: )

As Archimedes said "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." ;)


Martin

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 12:32 am
by zenguitar
Martin Walker wrote:As Archimedes said "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." ;)
Martin

And there was me thinking it was the Vogon Constructor Fleet who said that !!

Andy :beamup:

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 8:59 am
by Luke W
Martin Walker wrote:Hi Luke W!

Love your tubular punch leverage amplifier (patent pending) 8-)

What a great idea (especially since you're punching through 2mm steel plate :headbang: )

As Archimedes said "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." ;)


Martin

Cheers Martin, We'll come to arrangement for that name when the papers come though :lol:

Surprising what can be achieved with a metal bar and a can-do attitude.

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 10:13 am
by Sam Spoons
:clap: Definitely another level of sophistication from my usual 'percussive engineering' approach......

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 10:44 am
by Hewesy
zenguitar wrote:
Martin Walker wrote:As Archimedes said "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." ;)
Martin

And there was me thinking it was the Vogon Constructor Fleet who said that !!

Andy :beamup:

They did but it was wrapped up in a 45min 67 stanza poem. Handily it's a bonus track on Luke's new album, alongside an acoustic swamp blues version of "tubular, punch, leverage, amplifier". Which REALLY comes alive with the addition of that tea-chest bass solo.

Hewesy

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 12:00 pm
by Luke W
:lol:

Ok, so a few scenes missing, and we're left with this... Switches and LEDs in.
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And the inside with all the various bits and pieces fitted.
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Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 1:43 pm
by Martin Walker
Very smart Luke, but why are there two footswitches on one side and a third at right angles to them? :o

And why on that third footswitch are the LEDs on the 'foot' side of the switch?

(I think I'm missing some functionality here ;) )


Martin

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 1:49 pm
by Hugh Robjohns
...and why are there eight separate cables connecting to the box on three different sides?

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 2:02 pm
by Hewesy
I presume it's A/B on the right, then loop pre/post and volume boost (red?) So the A/B doesnt matter if its below the footswitch so much.

I'm guessing it sits top right on Luke's board above the EHX for the loop.

But yes, interesting layout m'man... :beamup:

Hewesy

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 2:15 pm
by Luke W
The arrangement was pretty much dictated by space inside the box, leaving enough room for TS plugs etc. The assembly for the locking TRS sockets shifted everything off center a little. A bigger box perhaps would have been more sensible (or not doing silly things like this at all maybe!)...

Hugh, the two locking sockets on the right hand side are guitar inputs, the two on the left are for amp/tuner outputs, and the row of four along the back are two pairs of sends/returns to connect two pedals and be able to run either one in front of the other.

It was quite a bit cheaper to put together than buying even a simple passive A/B switch and order switcher, and I liked the idea of learning something along the way!

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 5:47 pm
by Hugh Robjohns
All power to your... Er... power tools. It's a neat job...

I was just intrigued with the layout. It would have helped if I hadbfollowed the whole thread instead of dropping at the end! Nice rack wiring, BTW. :-D

Re: Rack Effects Build

PostPosted: Fri Sep 28, 2018 6:22 pm
by Luke W
Thank you, much appreciated :thumbup:

Re: Rack Effects Build

PostPosted: Mon Oct 01, 2018 11:52 am
by Luke W
Well, a couple more pictures and this is completely up to date. First up is the result of me buying a paint pen. I knew that trying to be too clever with labeling would just end up with the thing looking like a bodge, so I decided to go for the intentionally rough approach.
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Next, was the all important test... Everything powered up nicely, and pedals switch in and out without fuss. Despite the amount of cables and connections in there everything is lovely and quiet. The GCX has the ability to power the foot controller via the MIDI cable, however, as the controller wont be connected directly to the GCX, I've not wired those pins in the rack cables. The MIDI signal into the rack will be split off to the Strymons and the GCX by the Kenton box, so 9VAC can stay well away from that!

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In the above picture, I'd patched the controller straight into the GCX just to test the switching. Since then I've dug out and old PSU to power the Ground Control separately, and with it connected up to the rack have got bypass switching for the pedals, as well as patch changing on the Strymons all working and programmable to a single footswitch.

I've also had a brief play with an expression pedal, and got parameters on all three Strymons responding to the one pedal, which is going to make for some incredibly fun noise making. Eventually. The last thing I tested, was a clever little global tap-tempo box that generates MIDI Clock, so again, a single tap switch to sync all time-based effects.

Re: Rack Effects Build

PostPosted: Mon Oct 01, 2018 2:04 pm
by Sam Spoons
Luke W wrote:Well, a couple more pictures and this is completely up to date. First up is the result of me buying a paint pen. I knew that trying to be too clever with labeling would just end up with the thing looking like a bodge, so I decided to go for the intentionally rough approach.
Image.

It's not 'rough' it's "Boutique" :clap:

Re: Rack Effects Build

PostPosted: Mon Oct 01, 2018 2:34 pm
by Hewesy
ZVEX would charge an extra $50 for that mate :bouncy:

I like it a lot, its clear, which is the key, but also very "friendly" handwriting which makes it look very cool. I'd buy it.

Some great MIDI tweaks mate, but I am curious, would you want all the Strymon's to respond to the same tempo/pedal sweep?

Hewesy

Re: Rack Effects Build

PostPosted: Mon Oct 01, 2018 2:53 pm
by Luke W
Sam Spoons wrote:It's not 'rough' it's "Boutique" :clap:

That's the spirit :thumbup:

Hewesy wrote:Some great MIDI tweaks mate, but I am curious, would you want all the Strymon's to respond to the same tempo/pedal sweep?

Hewesy

In some situations, yes. They're all on different channels so I can include/exclude them from anything on a per-patch basis, but having them able to respond to the single pedal opens up some cool options. If I want to control one parameter on one pedal like a standard expression pedal setup then that's possible, but if I want to assign multiple parameters then that's an option as well.

The expression pedal I'm using has its own MIDI output as well as the standard TS outputs, so that combined with the Ground Control could mean that multiple parameters on a single pedal could be controlled, but I'm yet to test that theory...

Re: Rack Effects Build

PostPosted: Mon Oct 01, 2018 3:55 pm
by Hewesy
That's tidy, and as you say does open some very cool possibilities to control multiple parameters on the various pedals.

I presume you could hook it to the SuperEgo too, if you aren't already, for even more oddness?

Very tidy,

Hewesy