Electro-Music Klee Sequencer Build and Applications Thread

Scott Stites · Posted: Fri Aug 10, 2007 10:33 am Post subject:

I'll put you on the list, Fred.

Cheers,
Scott

Scott Stites · Posted: Fri Aug 10, 2007 10:55 am Post subject:

I've told Andy privately that I'd *love* to have sliders, but I just don't have the beans to make a panel that would take sliders. I think they'd be perfect for the job (I'd prefer sliders on any sequencer, I think).

Be that as it may, I've started circling my own proto-panel. I'm using the usual little Alpha's from Mouser, because I've got a ton of my stock el-cheapo, tiny knobs for them already.

I'm thinking of a 5" tall rack panel, with the pots on .909" centers, or something like that. A little wider than my module pot dimensions. Expect my panel to be a bland, utilitarian sort of thing (as usual).

The main controls (those in groups of sixteen) will occupy four horizontal rows. Top to bottom on that section: Pattern LED's, Pattern Switches, Programming Pots, Gate Bus Switches. The rest of the controls/connectors/indicators still have to be sorted.

Cheers,
Scott

Funky40 · Posted: Fri Aug 10, 2007 11:33 am Post subject:

State Machine · Posted: Fri Aug 10, 2007 5:34 pm Post subject:

fluxmonkey · Joined: Jun 24, 2005 Posts: 708 Location: cleve

cutting slots for slide pots by hand is a royal pain, but if you're gonna shell out for a shaeffer panel, the extra cost for slotted holes is not that much more (tho shaeffer is never cheap)...

b

fonik · Posted: Sat Aug 11, 2007 7:33 am Post subject:

sorry for that cross post. below is the panel sketch i made once upon a time for the original klee thread. i thought it could be helpful for all who chimed in lately.
not just the way i would do it today, but almost.

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Scott Stites · Posted: Sat Aug 11, 2007 4:19 pm Post subject:

Tanks Funky40!

I've always thought Fonik's panel design comes the closest to how I've always envisioned the Klee.

Don't y'all forget the Klee boards will allow you to have either a single rotary switch to set max voltage range (intervals) for the pots, or you can have the rotary, with one position of the rotary pointing to a pot that allows you to set your own custom range. Just an option, there, in case you didn't have enough controls to juggle Laughing

Oh, he laughs as he wrestles with his own panel layout.....

Cheers,
Scott

EdisonRex · Posted: Sat Aug 11, 2007 4:21 pm Post subject:

Hmm. Maybe 4 high is going to be necessary. I will need to get my fingers into the spaces between the controls somehow.

Scott Stites · Posted: Sat Aug 11, 2007 4:22 pm Post subject:

Oh, yes, and the PCBs provide three optional outputs - A, A+B, and B that are tapped before the glide controls (like Ray does with his sequencer, IIRC).

Time to duck?

EdisonRex · Posted: Sat Aug 11, 2007 4:25 pm Post subject:

Oh, definitely 4U high then. Cool

Scott Stites · Posted: Sat Aug 11, 2007 4:25 pm Post subject:

Yeah, I'm going with five inches tall. Probably the four rows of pattern switches, LEDs, gate bus switches and pots will be in the upper portion and the rest will be arranged in the lower portion.

Cheers,
Scott

goodrevdoc · Posted: Sat Aug 11, 2007 4:32 pm Post subject:

Have you guys seen these for slide pots:
Alpha LED Slide Pots
Saves a lot of panel spce, IMHO. Great now I have to totally re-think my panel... Razz

-justin

Scott Stites · Posted: Sat Aug 11, 2007 4:36 pm Post subject:

Way to go, Krunkus Laughing

Scott Stites · Posted: Sat Aug 11, 2007 4:39 pm Post subject:

Hmmm....don't forget the electro-music Klee has the Invert B switch, which the Model 2 didn't have. Throw your beer cans at Jan, that was his doing Laughing

Scott Stites · Posted: Sat Aug 11, 2007 4:50 pm Post subject:

The Klee does have one superfluous third nipple that could be dropped if space becomes a problem. The Clock LED and the Master Gate Bus LED will essentially give the same indication. I like having both, because I always have pictured the Master Gate Bus LED to be grouped in with the other Gate Bus LEDs, and it tends to "blend in with the crowd", where the clock LED I've always envisioned as being somewhere near the clock input, so you get an instant feel for the frequency/duty cycle by looking at it.

Cheers,
scott

blue hell · Posted: Sat Aug 11, 2007 4:51 pm Post subject:

Scott Stites · Posted: Sat Aug 11, 2007 4:59 pm Post subject:

blue hell · Posted: Sat Aug 11, 2007 5:07 pm Post subject:

As long as I can catch or dive I'll be OK Wink

It's good to see this develop into a real machine, especially the front panel design above makes it really come alive, looks great !

Uncle Krunkus · Posted: Sun Aug 12, 2007 5:40 am Post subject:

State Machine · Posted: Sun Aug 12, 2007 6:21 am Post subject:

Scott Stites · Posted: Sun Aug 12, 2007 6:47 am Post subject:

Hey Andy,

Page 3 of the panel/interconnect (I have it labeled as Bus 1 Load). When a gate/trigger pair is detected on gate bus 1, it causes an instant reload of the pattern. It allows you to set the number of steps a particular pattern will provide. If you think of it in terms of a "normal" sequencer (IE, with only one high bit in the Klee pattern), it's more or less like the reset function. If your active bit is programmed at stage 1, you have Gate Bus Switch 5 set to gate 1, and Gate Bus Load is set to on, your pattern will have four steps.

Of course, the Klee will break the rules here if you'd like - you program a pattern with one bit, but, but the active bit is programmed at stage 6. In this case, (in 16X1 mode), the pattern will provide 15 steps, because the LED will slide from stage six through stage 16, then from 1 through 4, hit stage 5 and reload the bit at stage 6. So, with a bit of creative switch flipping, you can make it act as a "skip", because in this case, the overall effect is that it skips stage 5.

So, even with one bit (like a normal sequencer), the Klee allows you to decide where in the sequence you want to start, allows you to skip, or allows you to set the number of steps in the sequence. The sequence can have anywhere from 1 (one note repeating) to 16 steps (or 32 with invert B on).

When more than one bit is in the Klee pattern, the Gate Bus 1 load switch becomes more unpredictable, because any stage with an active 1 bit that's pointing its gate to gate Bus 1 will cause a reload - this tends to make for some fairly short sequences. It's great for on-the-fly switch flipping.

Bill, yeah. I think an optional manual range pot should probably go between 0 and 2V, otherwise it would be tricky to set where one wanted. I personally would replace the 8V range with it, meself. That's something we ought to determine during proto. Those resistors are pointy. Ouch! Just toss one of Jan's beers at me.....

Cheers,
Scott

mosc · Posted: Sun Aug 12, 2007 11:05 am Post subject:

Great work, Andy, Scott, everyone. This is something special. Very Happy

Uncle Krunkus · Posted: Mon Aug 13, 2007 6:56 am Post subject:

This is just a rough idea of where things might go. Due to the sliders, it's quite different to Fonik's idea. It's a 4U * 19" version. Any ideas and/or suggestions are very welcome.

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Scott Stites · Posted: Mon Aug 13, 2007 11:41 am Post subject:

Andy, it's really hard to tell - perhaps you should build one and send it here, and I can test it for you........ Very Happy

Seriously, that is sweet. I'd love to have sliders myself. Just looking at it gives me the impression that would make it more intuitive for programming.

There are a few things I've noticed with it:

1. I can't find the Invert B switch.

2. There doesn't seem to be a random input level control (one could survive without this, if one were able to control the level from the source of the signal).

3. (This is just a reminder to folks) - Manual Step and Reload (Load) are momentary switches - you've got toggle switches there. Not that that's wrong - I know there are momentary toggle switches, and they'd work fine, but just in case anyone was wondering....

Cheers,
Scott

fonik · Posted: Mon Aug 13, 2007 11:52 am Post subject:

oh yes! sliders! they look beautiful and give one the overview in a second. maybe i should think about the frontpanel twice? mmmh. now you caused me to sway... 3U, 4U 5U, who cares?