Devlog 2 - MiniPad

• built the case on fusion, and guess what. i did lapse the first part of the case like v1, but forgot v2 cuz i left for a late night snakc and forgot to rerecord

• its all on onshape so you can see

the case

• 102.38 x 96.90mm, 16.6mm tall closed
• 1.5mm plate, 14mm switch cutouts on 19.05mm pitch
• pcb sits on four bosses 10mm up, leaving 7.5mm under the board for the reverse mounted leds and the xiao
• m3 heatsets drop into the bosses from the top
• usb-c slot in the side wall, the only overhang in the print
• fillets on the outside corners and chamfers on the top and bottom edges so it doesnt feel like a printed box

minipad (i gave it a name)

• renamed all the kicad files, gerbers, qmk firmware, and repo

restructured the repo to match the ship criteria. everything you need to build one is in production/ now: gerbers, both case steps, the prebuilt uf2. also made a single assembly step with the case and board in it

devlog 1 - idk what im calling this

just finished the pcb for my hackpad. its a 3x3 macropad for shortcuts - app
launchers on the top row, screenshot/fullscreen/calculator in the middle,
copy/paste/undo on the bottom

specs

• 9 mx switches on a 3x3 diode matrix (row2col)
• 9 sk6812mini-e rgb leds, reverse mounted so they sit in slots in the board and
  shine up through the switches. per key lighting
• ec11 rotary encoder for volume
• 0.91” 128x32 oled
• seeed xiao rp2040
• 96.38 x 90.90mm, 2 layers, chamfered corners, 4x m3 mounting holes for a
  sandwich case

firmware

also got the qmk firmware compiling. the oled shows a clock and a spinning globe
made from real natural earth coastline data. 24 frames, projected the land
polygons onto a tilted sphere so those are actual continents at 32x32 pixels

next up

the case in fusion 360