Cleaning up the UI

I'm about to make a prototype of the UI, and have been cleaning up the grid a bit. This is what it looks like right now:

 

Inspired by the Matrixbrute, I started adding boxes around the related parts. The spacings are way off, but it should give some idea as to how things are grouped:

 

I do have some problems with this though. The vertical slits don't line up, in fact, they make the whole thing look a bit messy. 

I did also make a ready-for-lasercutting mode, that adjusts all line thicknesses and changes pot and button sizes to fit the shafts, ready for prototyping. Here is the left panel again:

 Now, to see if I could do any better, and after looking at the Waldorf Quantum, I came up with the following (crude) version

 It follows a slightly more logical structure, with the sources top left, then the mixer and post-mixer effects. It also groups the LFO and Arp in two separate two-row areas which gives a nice balance. There is not quite enough room for everything, especially the Arp controls, and I've decided to remove the bit crusher level pot as it isn't particularly useful. I do like this quite a bit. 

Then I decided to color the current version too, and to my surprise, I think it looks cleaner than it did with the "real" colors:

I think I can make both versions work. I will prototype the finished version now, and perhaps I'll have time to revisit the second version in the future.

As for the right side - it also needs a bit of cleanup, there is no room for the frame here, and I guess I should redo the filter to work better visually on the 8 row grid if I choose to go with the modified left side. 

 

I also think I'll probably ditch the post-filter bit crusher as that can be done by a general DSP, and maybe I'll make a smaller group of pots and no screen (or small oled screens?) for the DSP part. I have even been thinking about doing per-voice FX, or at least chorus, though that would mean not using the FX send lines. We'll see.

Pot and button boards tested

I finally got around to testing the potentiometer and button breakout boards yesterday. They seem to work just fine.

Button board with integrated pullups and diodes on top, potentiometer board (six pots per 10p connector) on bottom

breakout board for buttons, making it easier to connect 8 dupont connector buttons to a single 10 connector

While the buttons worked straight away, the pots gave me a bit of a headache. First time around, nothing worked. Turns out, the connection between the potentiometer and the 10p IDC connector is not particularly good. Pushing on the pot made it work, but releasing it made it lose connecton again.

After comparing with the unmounted connectors I have in my drawer, I realised there are two types. One of them has the sprung contacts further out into the hole:

 

Top: Connectors from the drawer, the contact fills half the hole

Bottom: Connector that failed. The spring fills less of the hole - also, it looks like the edges of the pot legs, being slightly to wide, have dug themselves grooves at the side of the connector, meaning they may not be able to touch the contacts.

Pot inserted into the working connector

Pot inserted into the non-working connector. When pushing the pot down, the legs are pushed up slightly inside the connector, making contact.

pot inserted into the non working connector (slightly more rounded than the working one).