Sorry that I don’t share the electronics. See https://groups.google.com/forum/#!topic/neonixie-l/txmEbShA3CI (I’m not an EE...)
For the keyboard I’m using a HT16K33 in a 3 x 9 matrix The display board uses 5 cascaded HV5622 shift registers. Since the IN-17 has no dot, I had to use 3mm neons. Also, a 3mm neon is used for the minus sign. If anyone is interested, feel free to use or modify the case STL files, at your own risk. Check the build dimensions of your 3D printer. The front panel is a piece of transparent brown acrylic (203mm x 50mm x 3mm). In the back, there are 3 holes where you can mount the IO-shield for your controller. For the top and the keyboard cover I have used wood filament, the surface looks much nicer than normal PLA. The label is just a small ENIG PCB. Note for mounting the keyboard in the case: screw->washer->bottom panel->20mm spacer->PCB(1.6mm),10mm spacer->keyboard cover->screw and screw->washer->bottom panel->thin washer->PCB(1.6mm)->10mm spacer->keyboard cover->screw -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/a6e3c297-8a9c-48f9-a32f-eff039f66f33%40googlegroups.com.
<<attachment: CalculatorCase.zip>>
