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drawer 3 of 4softwarephotographysundries
DRAWER THREE — 3D PRINTING & ELECTRONICS, SAME BENCH

Tinkering

Old hardware with new brains, and brackets holding things that were never meant to be held.

AI in a Box
BUILD LOG № 07 · JAN 2026
Old intercom with an AI assistant inside
a 1980s intercom, quietly possessed

A 15€ Universum DWA 101 from eBay, a Raspberry Pi 4, a USB microphone and a speaker that should really have been an amplifier. Three push buttons glued under the original intercom keys, and the red LED swapped for RGB so it can show which personality is currently talking.

Four modes, none of them useful: depressed, supporter, critic, and a debate mode where the last two argue with each other about whatever you bring up.

read the full build logsource code
on the bench
· a printer, mid-failure
· soldering iron, still hot
· Raspberry Pis, assorted
· a drawer of unlabelled cables
SWAP FOR YOUR REAL SETUP
PRINT SETTINGSLAST GOOD ONE
layer height0.2 mm
infill25 % gyroid
nozzle / bed215 / 60 °C
supportsreluctantly
PARTS BIN
Raspberry PiESP32RGB LEDsPLAPETGtoo much solder
other things on the bench
finished, mostly
photo — intercom mount4 : 3
Intercom mount

Printed bracket so the whole thing hangs on a wall like the original was supposed to.

third revision, first good one
photo — the old Macintosh4 : 3
Blimp

An old Macintosh given something new to do. Code here.

the one that started it
the next one

Empty slot on purpose — whatever is currently half-soldered goes here.

IN PROGRESS
FAILURE LOG
kept for morale purposes
speaker straight onto GPIOno amp, no sound
volume knob, analoghardcoded instead
bracket rev 1 & 2warped, snapped
that one print at 94%we don't talk about it
building the same thing?

Happy to share files, settings and everything I got wrong first. Just ask.

hi [at] merlinfuchs.com