forestcaver Posted January 31 Report Posted January 31 Finished my Seq V4 - Wilba CS, stm32f4 core, 2x midio out, 1x iic quad midi, 16x4 BLM, TPC, AOUT_NG, DOUT, cutom breakout board for DOUT and AOUT_NG and the Westlicht seqboard (for SD card, etthernet, +/-12V). Only issue I have is that there is up to 25mV offset on a couple of channels of the AOUT_NG, which is within spec according to the tlv5630 datasheet - I am going to make another AOUT_NG board with dual inverting output stages and a trimmable offset I think. Otherwise I am really happy with it - thanks to all the contributors ! Quote
6040 Posted February 6 Report Posted February 6 Outstanding looks really cool. Would you mind sharing the files for the panels? cheers 6040 Quote
forestcaver Posted February 6 Author Report Posted February 6 (edited) 1 hour ago, 6040 said: looks really cool. Would you mind sharing the files for the panels? Thanks - panel files are attached - these are Eagle PCB files - I ordered from jlcpcb and I ordered aluminium pcbs - they were between $4 and $6 for each pcb/panel (there are three panels) when you order 5 of each - so about $20-$30 for 5 sets of 3 panels. I ordered black silkscreen and white soldermask - the files below are set up for this, as it arrives at a higher resolution and with less bleed than doing it the obvious way around. These are 1.6mm thick - I doubled them up - so used two pcbs for each panel to have a thickness of ~3mm to increase stiffness and thickness, at a cost of ~$10 total for each panel - so about $30 for all the panels you can see above. Hope that is helpful.... AJH_IO_10.brd AJH_TPDBLM_19_v02_07_bSSwSM.brd AJH_wilba_mbseq_19in_opt_04_bSSwSM.brd Edited February 6 by forestcaver Quote
forestcaver Posted February 6 Author Report Posted February 6 (edited) Also - the frontpanel express files for the IO panel (I think the other two are available in the wiki - if you cant find them, let me know but I’m pretty sure I used existing files - may have made minor edits - but not to holes etc - so probably not right to share them !) AJH_IO_06.fpd Edited February 6 by forestcaver Quote
6040 Posted February 6 Report Posted February 6 Thanks a lot much appreciated. I used Jlcpcb for smaller facias like Microdexed Touch, Zynthian Mini or the MB6582 quite successfully, but with this size don't you get a lot of bending even with two stacked together? I was able to export the eagle file to dxf but it is huge and really struggling with the fonts. Might have to read up on how to export without the fonts. Like this Inkscape crashes on me quite regularly. I finished my Sequencer a while ago but want to get a metal enclosure now and also make an enclosure for the BLM and TPD like you did. How did you connect the AOUT to the many outputs, is there another pcb in there or just a lot of spaghetti cables? cheers 6040 Quote
forestcaver Posted February 6 Author Report Posted February 6 (edited) 59 minutes ago, 6040 said: Thanks a lot much appreciated. I used Jlcpcb for smaller facias like Microdexed Touch, Zynthian Mini or the MB6582 quite successfully, but with this size don't you get a lot of bending even with two stacked together? I was able to export the eagle file to dxf but it is huge and really struggling with the fonts. Might have to read up on how to export without the fonts. Like this Inkscape crashes on me quite regularly. I finished my Sequencer a while ago but want to get a metal enclosure now and also make an enclosure for the BLM and TPD like you did. How did you connect the AOUT to the many outputs, is there another pcb in there or just a lot of spaghetti cables? cheers 6040 The flex is acceptable (to me) compared to the price of frontpanel express !!! (The Wilba board is fine but the BLM and IO panels have a little flex due to less material - I am toying with the idea of epoxying an angle strip to the back for rigidity but havent needed to.... I have a breakout pcb that takes the outputs of the dout and aout_ng and feeds the jacks. (I used an extra spare pcb that I drilled to mount the standoffs for the dout and aout_ng). It connects to the 4x 10-pin headers on the dout and the 16-pin header on the aout_ng via ribbon cables. The board I am using is a little too tall for 2u but I have made an (untested) board that is a better size for the 2u panel. Next time I order pcbs I’ll order the revised one.... I can share both with you if you like - maybe by PM, as the revised board has not been tested yet and I am not 100% happy with the one I am using due to size ??? If you’re in the UK, you can have a couple of them if you like ! I am off on a remote caving expedition for the next 3-4 weeks in a few hours (!) So it wont be until I get back - PM me if you want the boards... (and send me a reminder in a few weeks as well !) Edited February 6 by forestcaver Quote
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