Gridracer Posted March 6, 2009 Report Share Posted March 6, 2009 Can;t stop smiling since I finished my box last weekend :D First of all, thank's a million, million times to all midibox members for developing and SHARING this incredible piece of gear, very special thanks to TK of course! Since I got my first MIDI gear in 1995 I always dreamed of "the ultimate hardware sequencer" Over the years boxes have come and gone and I spend sometimes more or sometimes less time in my studio. I was pretty happy with my RS7000 but always had an eye on other SEQ's. I had the Manikin Schrittmacher and the Genoqs Nemo on my wanna try list, and I had on the very back of my mind that there was a site about a remarkable DIY SEQ on the net. As I work in the automotive industry it became that since the end of 2008 I have more time to spend for my hobby then the years before due to shortend working times. :( ??? :) So the wish for THE sequencer became stronger than ever before and I was close to get a nemo. BUT... then i recalled this DIY SEQ found it on the web again, started reading, reading, reading and things developed......... http://www.midibox.org/forum/index.php/topic,12903.0.html so since last weekend I have a grin on my face and this BOX on my desk: INSIDE: MORE: http://www.flickr.com/photos/gridracer/sets/72157613814527297/ Here some Info: My "want to have it all" frontpanel as well as the rearpanel is from Schaeffer The wooden box is made by a friend and carpenter out of ALDER wood which is oiled with FLAXOIL My singlecolour BLM is a slight variation of the duocolour version, I only added a darlington array as sinkdrivers. These are the buttons I use (more about them, read below): http://www.sci.com.tw/PRODUCTS/switch/(R13)%20PUSH%20SWITCH/R13-529.htm All modules came as kits from MIKE What i learned: -reading is the key, if I had read more for example I could have avoided building my own bankstick e.g. ;) I just overlooked that there is a PCB available, only no kit ...silly me. -Switching polarity on the MIDI sockets is easy.... but also easy to sort out, just compare by using an LED with some commercial gear. -Optocouplers are lousy little bastards! >:( I became just anothert victim.. mine passed all tests, but messed up SW upload! My bugy opto even works fine on the thru port of the IIC module as the signal gets amplified, but messes up the midi in -> note numbers and Velocity values get randomly changed! -The "melt isolation" wire i used on the matrix is tricky, it takes lots of heat to get a propper connection so there is the danger to overheat the components. I fried 5 buttons, 1LED, 1Diode and had lots of non conducting connections, whereas I had not a single problem on the PCBs. -The buttons I use seem to have problems with production tolerances, I guess I was lucky to have only 2 or 3 "sticky / rough" blue ones while I had to repalace almost half of the yellow ones due to the bad feel. If the buttons show up to be a cause of trouble I might disassemble them and use them as luxury cap system for tact swiches. -ALPS encoder STEC16B04 743420 unequal VOITI + SOUNDWELL encoder ? I got my encoders from www.distrelec.de and had to discover that they only decrease values when connected as described. I got mine to work by switching ground and highest din pin. -Watch the spec's of the displays, I had to use additional resistors and a different potentiometer e.g. Finally, I hope I can give at least a little of all that I recieved back: CHAINREACTOR-SHARE.zip EDIT: fixed attachment tag 1 Quote Link to comment Share on other sites More sharing options...
ultra Posted March 7, 2009 Report Share Posted March 7, 2009 congratulations on your seq. i'm almost done with mine and your post is getting me even more excited about it :). Quote Link to comment Share on other sites More sharing options...
stryd_one Posted March 7, 2009 Report Share Posted March 7, 2009 F*cking awesome dude. It's so pretty, and you shared the files, and shared info you learned and everything... really a perfect job. Nice work! Quote Link to comment Share on other sites More sharing options...
nebula Posted March 7, 2009 Report Share Posted March 7, 2009 I agree 100% with Stryd ....But it's just so damn pretty, I can't help but wish for video :) Quote Link to comment Share on other sites More sharing options...
/tilted/ Posted March 7, 2009 Report Share Posted March 7, 2009 Very nice panel wiring.And a very nice touch (if I'm not mistaken) adding the perspex insulation panel. Quote Link to comment Share on other sites More sharing options...
d0gmaz Posted March 11, 2009 Report Share Posted March 11, 2009 wow :o jaw dropped... love the case the wiring and also great layout. congrats! Quote Link to comment Share on other sites More sharing options...
boops Posted March 12, 2009 Report Share Posted March 12, 2009 WAOUHH YOU 'RE A "GRAND SEIGNEUR" HELPUL INFORMATIONS AND NICE MACHINE TOO, CONGRATS Quote Link to comment Share on other sites More sharing options...
Gridracer Posted October 11, 2009 Author Report Share Posted October 11, 2009 Now after some enjoyable months with SEQV3 here are some new pics from updating to V4 this week:By the way, shortly after I had finished my SEQV3 I changed the resistors of the LEDs as I noticed that they were much too bright:I now use:8,2KOhm !! for the blue non multiplexed LEDs1,3KOhm for the blue multiplexed matrix LEDs470Ohm for all red LEDs(for all green and yellow LEDs i kept 220Ohm)Now all LEDs look equal bright and are gentle to the eye, esspecially the blue ones do not spike out any more, which is clearly visible if you compare this new picture with my older pictures on the beginning of this threadsome more pics:http://www.flickr.com/photos/gridracer/sets/72157613814527297/ Quote Link to comment Share on other sites More sharing options...
nsunier Posted November 1, 2009 Report Share Posted November 1, 2009 You have done a so beautiful, precise, well-thought work! I am very impressed. Nice of you to share your experience with us. Quote Link to comment Share on other sites More sharing options...
taximan Posted December 24, 2009 Report Share Posted December 24, 2009 Speechless...jaw hits floor. Quote Link to comment Share on other sites More sharing options...
gjvti Posted January 22, 2010 Report Share Posted January 22, 2010 hm, looks fantastic, but where you get those additional buttons? where they are connected? does this needs additional components and modification of software? Quote Link to comment Share on other sites More sharing options...
Gridracer Posted January 22, 2010 Author Report Share Posted January 22, 2010 Hi gjvti, you do not have to modify the software. You just have to assign the additional buttons and led's in the configfile: "MBSEQ_HW.V4" In the file all buttons, LED,s and options are listed that are available without software change. The file is included in the release package: ucapp For the additional Buttons and LED's you will need additional DIN and DOUT modules. Best Regards, Gridracer Quote Link to comment Share on other sites More sharing options...
Gridracer Posted March 20, 2016 Author Report Share Posted March 20, 2016 7 years have passed, time to post something new about my SEQ: Since the optional step digits were released, i wanted to have them too. Finally this week I screwed my box apart and put the frontpanel under the milling machine. Luckily everything worked well, as same as gluing in the display glas and soldering the protoboard panel for the digits. Only issue was that the pinout shematic Dout->Digits seemed to be wrong. Thanks again TK, and everybody involved for this icredible piece of gear. Best Regards, Gridracer Quote Link to comment Share on other sites More sharing options...
TK. Posted March 20, 2016 Report Share Posted March 20, 2016 Quote Link to comment Share on other sites More sharing options...
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