ilmenator

MIDIbox SEQ BLM 16x4 Control Surface PCB

38 posts in this topic

I got them for here for 0,62 EUR pp (again, excl. VAT, Conrad sells them for 1,40 EUR)

 

That is a really, really good price - I desoldered mine from old (but actually mostly unused) equipment, I think I wouldn't have gone through the hassle had I known about this supplier earlier! The "feel" of these is superb. Thanks for providing that link, freddy!

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ilmenator - no kidding, I told you about the source and the price before (PM on 7/1) though without the links  :sad:

 

orange - while browsing PMs with ilmenator I found some poor quality pics of the 19mm caps, attaching them as a teaser before I'll make proper pictures the following weekend. Basically, to get an idea, using 16mm caps (the smaller and more expensive at Conrad) this leaves ~4,5mm space between the buttons as can be seen on ilmenator's Wiki page, using 19mm this leaves ~1.5mm for the panel width.

post-3601-0-83871000-1360926370_thumb.jp

post-3601-0-18978000-1360926428_thumb.jp

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ilmenator - no kidding, I told you about the source and the price before (PM on 7/1) though without the links  :sad:

 

Yes, but that was after I had desoldered mine already :smile:.

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Hi Ilmenator,

 

I wanted to order a PCB from goldphoenixpcb., but I am struggling with the fields to be entered in the order / quote form. Can you please review the fields entered ? I guess I have to enter the total size (335.15mm x 97.92mm) as given in the WIKI, right ?

 

 

Thank you !

orange

post-8528-0-99597200-1360934805_thumb.jp

post-8528-0-92466600-1360934812_thumb.jp

Edited by orange_hand

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Gold Phoenix will usually send you a quote after you have uploaded the Gerbers. Whatever you enter in their form is just for giving you quick online feedback, I believe.

 

16x16mm in the Wiki is indeed an approximation, yes. I believe that is actually the recommended opening in the frontpanel - it's in the cap's datasheet.

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Thanks for the quick reply ! I just send my inquiry.

Edited by orange_hand

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Hi Freddy,

 

I can wait .....

 

Orange,

 

Here it is, the images are self-explaining, if you want to take picture from another side, angle, or caps combination, let me know, I'll have the camera around me till Sunday, flying back to Frankfurt on Monday.

 

Edit: I just realized that the 19mm caps will be covering the LEDs so the LEDs would need to bended a bit (by app 1.5mm) to the top. There is still enough place to fit a 3mm LED between the rows, though.

post-3601-0-83805100-1361617988_thumb.jp

post-3601-0-77986700-1361618002_thumb.jp

post-3601-0-69073800-1361618008_thumb.jp

Edited by freddy

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So, sorry to bring up this old post, but I was wondering if somebody could give me further insight into the function and use 

of the 4 x 16 BLM.   

 

I understand the concept of the BLM, at least at that 16 x 16 x X level.  

 

On the larger BLM it's actually a 17 x 17 BLM and the extra colum and row , is how you define the "Modes" of the BLM.

 

 

So with the simpler, 16 x 4 BLM.   How does one control the "Modes"?  Or is it a simpler BLM and only controls... ? 

 

 

I see all the instructions on how to build it but just haven't found anything describing its use and function.

 

 

Thanks!

Edited by renegadebliss

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So in trying to answer my own question, I've been looking at the source code.  But that leaves me with even more questions.. :)

 

I see this here: (root)/trunk/apps/sequencers/midibox_seq_v4/hwcfg/wilba_tpd/MBSEQ_HW.V4

 

# set this value to 1 if each track has its own set of 16 LEDs to display unmuted steps and current sequencer position # or if you are using a button/led matrix for misc. button/LED functions BLM_ENABLED 1

 

So the LED's on the matrix will show unmuted steps and current sequencer position.

 

So we have 4 Rows... is that for the 16 steps of the 4 Tracks for the currently selected Group?  

It's just not clear what each of the 4 Rows of LED's are showing.

 

 

Then we have the buttons:

# set this to 1 if these buttons should only control the "step triggers" (gate, and other assigned triggers) - and no UI functions BLM_BUTTONS_NO_UI 1

 

So where are these assigned buttons made?  Is their a menu option?  When I go through the Menu pages in the User Manual, I only see BLM options for Scalar.   How does one set these buttons to control/assign the "steps triggers"?

 

 

 

It seemed that this might have been something that was with v3 Seq?  I went looking there in the archives on the website, but haven't found much, and the pic that I saw from there, showed a  17 x 4 row , the 4 buttons in column looked like they were spaced

to help control the "function".  Is that what the 4 extra buttons are for on the other project, the TPD?

 

 

Just trying to get an accurate description of exactly what the 16 x 4 matrix controls and how one would set that up.

 

 

Thanks!

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ilmenator,

 

I've converted your AI back to FPD, I'm attaching it if you want to put it to the wiki. It was seated to 3U panel but the whole 16x4 BLM is a single block and can safely be moved around or copied/paste to another panel design.

 

freddy

 

freddy's FPD file has a 1,5mm. corner radius on the 16x16mm cutouts for the button caps.

For the Marquardt button caps this is too sharp, the radius should be 0,75mm.

 

Here is the altered file

BLM_16x4.fpd

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eptheca, thanks for sharing!

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