Narwhal

Programmer
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    225
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About Narwhal

  • Rank
    MIDIbox Addict
  • Birthday 05/16/1968

Contact Methods

  • Website URL http://www.potm.org

Profile Information

  • Gender Male
  • Location Santa Ana, CA
  1. Midi Out not driving X0XB0X Midi In

    Yah that what I fixed... this things is a beast.  I've had much fun today.
  2. Midi Out not driving X0XB0X Midi In

    I haven't extended the IO with MIDI-IO boards yet.  Thanks for the reminder on the need to adapt them as well when they arrive. I've always been called a stubborn Swede, so I put in 33? and 10?.  The outputs works perfectly now with the X0X's.
  3. Midi Out not driving X0XB0X Midi In

    Yep the Spec states that  
  4. Midi Out not driving X0XB0X Midi In

    Thanks for all the input everyone!  My lpc board was built when the board was first release, then I hadn't looked for any corrections until now.  I definitely have 220 Ohm resistors in there. I haven't run into anything else that I have that can't signal the x0x.  It appears to only be an issue with data coming from the lpccore.  This is also confirmed by looking at the MIDI Electrical Spec which specifically mentions the problems with 3.3v signaling and details the different resistor values as a solution. I'll give that a try today.
  5. I finally have my MBSeq working (yay!) and I've been learning a lot about how to use.  But today I decided to switch it up and go from playing my Waldorf Microwave XT to driving a X0xb0x.  But what should have been just a simple swap of cables has turned out to be a strange situation.  It appears that the Midi output ports on the MBHP_CORE_LPC17 are unable to drive the midi inputs on either of the two x0xb0x's that I have.  If I take the sequencer output and run it into an emagic interface into the computer then route it back out another output, then the x0xb0x's begin to play. Is this a known situation?  Will it work any better if I use a CORE_STM32 boards in the MBSeq?  I'm guessing right now that this is an electrical situation with the either the LPC17 or the x0xbox boards, but I haven't dug any deeper than discovering the situation yet.
  6. Wilba MBSeq V4 Front Panel Spacer Brackets

    More brackets. This time for the MBHP_CORE_LPC17 board.  Once this board is completed, then l'll make a version where it is adapted to be mounted to using longer screws that go into the MBSeq brackets shown above.
  7. TPD Dots

    From the album Narwhals MBSeq with TPD and BLM

    I'm wondering if this dot display is displaying correctly?
  8. [SOLVED] Wilba's Frontpanel not responding

    I'd love to get more information on what happened here and what you did to fix this +5V connection.
  9. dipCoreF4 and dipBoardF4, a compact Core.

    This is really nice.  It's looking good so far.
  10. Wilba MBSeq V4 Front Panel Spacer Brackets

    Oops the dot display window in the TPD area is not sized correctly.  At least the overall idea is working.
  11. Wilba MBSeq V4 Front Panel Spacer Brackets

    Thank you.  Those measurements were spot on to what I have. Here's the BLM panel. First there is the clear layer, with engraving around the display windows to help in alignment. Then there is the black layer over top with all the holes.  This lets the clear layer underneath perform as an LCD window. Looks like I need to work on a 1/4 backing piece that gives the whole structure support
  12. Wilba MBSeq V4 Front Panel Spacer Brackets

    I'm pretty sure it's v2.  I just bought it from you in July.  I was making use of the dxf files to load the switch positions into sketchup.  If you know of anything updated with those files could you share that with me?  I'm about to cut the panels this week.  Even if you have hole position measurements that could help immensely in importing that dxf at the correct scale. This week I start classes to use a Haas CNC, so a few more avenues of making things are going to open.
  13. Wilba MBSeq V4 Front Panel Spacer Brackets

    After 3 days of failure after failure I finally have a set of brackets for the 4x16 BLM board that I think will work well.  They are intended to be glued to a 1/8" front panel.  I'm planning on using 1/16 clear with 1/16 black laminated on top.  This will allow me to use the clear as windows above the displays and still maintain the exact same black appearance as the MBSeq panel. I started, in usual fashion, going as big and bold as I possibly could.  But with all the button and component to account for, it took careful planning of all the board based obstacles that needed to be avoided. After printing up that giant rectangular bracket, I found that the scaling of the buttons from the DXF were ever so slightly off and the bracket did not allow any slack to allow the buttons to be pressed.  A lot of buttons worked, but there were quite a few that got jammed on the bracket.  After trying many failed adjustments, I scaled back the design to just building supports where there were sets of screw holes and then only allowing the bracket to expand into spaces where there were no components and no button key cap. After about 3 iterations on each bracket I came up with the designs above that fit perfectly between the buttons, avoid all the lower components, and provide sufficiently large surface to glue at least 4 points to the front panel. This week I will test cut some panels.  
  14. Wilba MBSeq V4 Front Panel Spacer Brackets

    Thanks for cheering me on.  That sounds like a good plan.  I'm just about done with the last iteration of this bracket because the one pictured above actually touches the top of one of the chips.  I also wanted to add consistent black surrounds around digit displays and nudge the BLM holes down 1.5mm.  I'll add them to the wiki when I'm on my final iteration and they are all tested. Next up today is another main panel bracket to give a little more support around the buttons.  I'll print 4 of these and that will cover all of the possible screw holes on the main panel. After that I'll build a similar bracket for BLM4x16 board. Also all the color fills of the rainbow arrived today along with some CerMark so I can mark up aluminum with the laser.
  15. Wilba MBSeq V4 Front Panel Spacer Brackets

    Here's a bracket for the TPD module.  It has 3 holes on it's right side so that it can attach to the 4x12 BLM board.   mbseq tpd.stl mbseq tpd.stl