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Update 3: Removing the WIP mark - as far as the prototype of this goes; its working fairly well.

I did end up switching to a pro-micro from the teensy 2.0. In order to make it fit you have to snap off the back edge of the board holder. If someone really needs it; i'll resize the holder for an alternate version...but either way a drop of hot glue is in order to make sure its secure.

Hand-wiring was a little nutty, since you have to mentally reverse some of the layout going by the PCB design so it works (if you imagine flipping the board over so its upside down - it makes more sense as a guide for the matrix).

this is a really good hand-wiring guide if you need some help in general https://deskthority.net/viewtopic.php?t=6050

I can try to lay out the wiring on paper if someone gets stuck; and i uploaded my firmware hex file and keymap.c and keymap.json for the qmk if anyone wants it.

My next version of this will be a remix to use imchipwood's PCB from here: https://github.com/imchipwood/dumbpad

I made the second prototype (first image) with gateron mx style switches; as that is what will be needed for the pcb.

The keycaps are SA Profile keys from elsewhere on the site, but i don't necessarily recommend them - they had to be trimmed and sanded to work with the switch stems.

Update 2: I redesigned both tops to reduce the thickness in the key mounts and tweak the size of the mounting holes (keys were very tight). I also moved the mounting hole for the rotary encoder to be more central on the right. and added the Knob from lukie80's design. For the bottom, i added some more space for the teensy, it was also too tight - and tweaked th eopening for the USB port (since its B Mini and not B Micro like the Pro Micro board). The example prints show a mockup with old alps switches.

I will have some new switches and diodes (and encoders) tomorrow - and will take picks of print #2 with Cherry MX / Gateron style switches.

I will also manually wire it up and try flashing the firmware too. stay tuned..

Update 1: I redesigned the tops to have alps and cherry mounts separately, this will make it print better.

a 4x4 key macro keypad with rotary encoder completely designed by plagiarizing more talented people's work :)

I have been using the volume knob and case (https://www.thingiverse.com/thing:1612601) designed by lukie80 for several years now,

and the 5x5 Numpad (https://www.thingiverse.com/thing:1432516) designed by DeepfriedchriL possibly longer.

I loved the aesthitic of the volume knob, and the size of the knob is just right - and the 5x5 numpad was my first ever hand-wired diode keypad; so as a tribute to both,

and to solve my own needs - i combined the two into a single case (limiting the keys to 4x4 as i only have 16 recycled Alps keys left right now). The recess in the bottom of the case should fit a teensy 2.0 (i had one floating around)

My intention will be to hand-wire this prototype and modify the QMK firmware used for imchipwood's dumbpad (https://github.com/imchipwood/dumbpad)

Later, i will most likely revise this case to utilize the pcb included in the dumbpad design with newer switches and keycaps, etc.

This is a Prototype / Proof of concept - but feel free to do what i did - steal it and make it your own

My other stuff (mostly Keyboards) https://www.thingiverse.com/revere521/designs

Print Settings

Printer Brand:

Monoprice

Printer:

Maker Select

Rafts:

Supports:

Yes

Resolution:

0.2 mm

Infill:

25%

Notes:

print the top with thicker shells and layers if you can; some finishing /filling/trimming will be necessary depending on shrink - etc.etc.

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