nuxx.net
Making, baking, and (un-)breaking things in Southeast Michigan.

SQ-909 (or whatever)

Not having a TR-808 or TR-909 or whatever, I’m having a hard time coming up with the concept for a control panel for my step sequencer. The first step is figuring out exactly what buttons and LEDs are wanted / needed. Thus far I’ve got a run button/LED, 16 buttons/LEDs for the various steps, a 16-position BANK knob, a 16-position MODE knob, a 16-position INSTRUMENT knob, and a detented rotary encoder for TEMPO.

Maybe a three-digit seven-segment LED display so tempo can be shown numerically?

electronicsmaking thingsmoved from livejournal

Kentucky Breakfast


Founders Brewing Company’s Kentucky Breakfast Bourbon Aged Stout

Yes, tonight I opened my single bottle of Founders Brewing Company’s Kentucky Breakfast Bourbon Aged Stout. It’s just one of those nights…

Also, I managed to successfully etch and tin plate the double-sided PCB for the Casio SK-1 MIDI modification. I’m in the processing of ordering the parts for it now.

The etching seems good, but I did learn something. Hopefully this something won’t cause me problems down the line. It seems that one shouldn’t put the etched copper-clad PCB into the tinning bath until it is warm enough to dissolve all the precipitated stuffs. The solids setting against the copper/tin will leave a whitish discoloration, which may or may not be good for the board. Fortunately there doesn’t seem to be any of this on the pads, and only in a couple spots on the traces, so it should be fine.

It wasn’t a problem on the one affected pad on the FatMan’s Subharmonic Generator, so hopefully it won’t be a problem here. It’s not like the copper isn’t still intact beneath.

Well, back to ordering parts and figuring out exactly which Intel 80C31 I need.

beerelectronicsmoved from livejournal

PAiA FatMan Plus


The completed PAiA FatMan Plus
(Click for more…)

Well, there it is. It’s done. No, not the x0xb0x (photo gallery retired), that’s still waiting for the front panel, but the PAiA FatMan Plus.

Today the new panel overlays came in from a guy in Ypsilanti named Chris Lowell who owns a sign shop there called Lowell Sign Designs, Inc. I met him on ladyada’s tea party as part of my posts about the < a href="http://www.nuxx.net/gallery/v/stuffivemade/x0xb0x/frontpanel/">redesigned x0xb0x front panels which I’ve been working on. Earlier in the week I sent him my final design for the PAiA FatMan Plus front and rear panels. He gave me a great deal on printing them and they arrived today. They are inkjet printed vinyl with Lexsaver over them, so they don’t look quite the same as the Lexan-only panels from MaverickLabels.com, but they still look good.

If you are curious, here is a high resolution scan of the front panel, and here is the rear.

With having a working synth and acceptable artwork, I set to finishing it all up. First I pulled the panels, then I cleaned them up and painted all the edges which could or would be exposed with a nice black paint pen. Next I applied both overlays and cut out all the holes. The holes for through-hole parts didn’t need to be perfect, so I just generally followed the metal at the edge. For the countersunk holes for the corner screws I didn’t cut all the way to the edge, that way the fit around the hole would be nice. The rear holes were a bit tricky, but I think I managed.

Then it was time to get on with the final assembly. I refitted the rear power switch to ensure it was solidly mounted, mounted and connected the LEDs, reinstalled everything else in the rear panel, fitted the rear panel, bundled all the wires so it would fit nicely.

After screwing the case shut for (hopefully) the last time, I gave it one final test with a MIDI keyboard before calling it finished.

And now? It’s done*.

So, what was this mess in this case (yes, I like the rusty metal look too, it was just unusable and non-functioning) a few weeks ago is now this not-mess in this enclosure. Thanks to the Hard Sync and Subharmonic Generator additions, it’s capable of producing even more interesting sounds, too.

If you are interested, there are more photos of my PAiA FatMan Plus available here (photo gallery retired).

And now, with this done, I go to bed.

Goodnight.

* There are a few more tweaks I may make, like replacing the optoisolator (it may be causing me some problems responding to very frequent MIDI commands) and possibly some range adjustments, but those will come later, if ever.

electronicsmaking thingsmoved from livejournal

Detroit Band Saw

Wow. So I just called Detroit Band Saw and told them what I needed. That is, a 67-1/2″ bandsaw blade for cutting metal. Well, I’ve now got the appropriate blade on order, at a really nice price. They offer two types of material, carbon steel or a flexible alloy with M42 cobalt teeth, 1/2″ wide. The prices for the blades are $9.69 and $23.60, respectively. I went with the more expensive one because it’ll work for stainless steel and other such things, and the price… Well… I think that’s just great. They are going to make it up today and sent right out.

This makes me really happy. :)

All they do is custom make bandsaw blades and they will ship them, so I’d probably have to recommend them to whoever else needs such a blade. Prices are the same as all the big box stores, and they are *exactly* what one needs.

acquired thingsmaking thingsmoved from livejournal

Coffee!

This morning I am drinking some excellent coffee. It is a 50/50 Mocha / Java blend which I roasted myself to be fairly dark, brewed in a Bialetti Moka Express with about 1/2 tsp of chicory. After brewing the full pot of coffee was then poured over 2 Tbsp of ‘coffee cream’ (something like 18% butterfat) in a tall, clear insulated drinking container.

Total of 60 calories, and it’s really quite nice. Probably one of the best cups of coffee I’ve had in a long time.

foodmoved from livejournal

Bandsaw + Labels

Well, the new bandsaw is much nicer. I just need to find a blade for it. :\ Well, a 18tpi or so blade so I can properly cut PCBs and such.

While outside of Home Depot I got a call from MaverickLabels.com. I spoke with someone there named Scott who didn’t know the complete history to my problem, but was working on getting the labels printed. He wanted to ship 8 of the labels to me tonight, and another 4 tomorrow, just so I’d have them in the morning. I declined and said that he can ship them all in a single batch, and that I’m less concerned about time and more about just getting them right.

That said, I’m starting to wonder if they aren’t up to the task of printing these. Hopefully I’ll know more tomorrow or Monday. < sigh > I just want the damn things right… I guess, worst case, I just use the first batch with the missing artwork.

Blah.

UPDATE: Gur. I seem to do things like this a lot. That is, buy a bandsaw with a non-standard blade size. :\

acquired thingsmaking thingsmoved from livejournal

MaverickLabels.com Update


Cut errors in 2nd Run…
(Click for full size)

As a bit of an update, I spoke with the customer service rep for my account over at MaverickLabels.com. He apologized for things, thanked me for the scans (I figure they are the only clear way to point out the errors) and said that the job will be re-run tomorrow, and they will be sent out via UPS Next Day Air.

So, I guess I’m waiting until Friday. As long as the labels on Friday look fine, I’ll be happy. I think a combination of waiting too long to eat along with bad traffic made me a bit grumpy, to say the least.

I think I’ll go clean up my workspace downstairs… Since synth things are wrapping up (for now), it’d probably be a good idea to bin the spare parts and get everything in order again.

electronicsmaking thingsmoved from livejournal