Our set of NFC tags is growing, and not limited to any particular style or technique: Currently in use are a wooden frog (Ostheimer) glued onto a cardboard lily pad, a LEGO droid, and several painted wooden knobs; a penguin on acylic base still needs its NFC tag sufficiently separated from its metal parts.
We spared no effort in visualizing how screws serve as an anchor to Doris' built-in magnet. (Well … we tried whether 4x16mm screws need pre-drilling in 25mm knothole fillers: Yes, they do.)
After about 2 years of planning, our take on letting kids choose their own music is running. Like the popular Tonies / TonUINO boxes, users can place magnetic NFC tags on top of a small device to start playback. But this device has no built-in speaker. Instead, it connects to a media PC via Bluetooth, and starts the right song or playlist.
Materials include ready-made microcontroller boards, simple hand-soldered connectors, laser-cut case, and software based on @ariel.
https://codeberg.org/chrysn/doris
Toy garbage trucks often come with the manufacturer country's color coding. That stands in the way of realistic play!
We're fixing this with 1-2 layers of water based acrylic paint. (Conveniently, they are at hand due to their regular use for Easter eggs).
Out kitchen aid came with several disk shaped tools; storing them in a box just didn't cut it. (Hehe.)
Fortunately, boxes.py had the right building blocks so we could design a shelf where anything disk-shaped can be stored for easy access. The shelf can be customized on
https://boxes.hackerspace-bamberg.de/boxes.py/DiscRack; we laser cut it in 3mm plywood.
(Archive project: 2019-08-12)
Railway engineering is difficult, especially when there are no standards: Trains might get stuck under bridges!
3D printing to the rescue: We designed an extender for the classical
#BRIO viaduct bridge, printed by a friend in black PLA.
Source on
https://id.endor.at/26530Tools and materials: Cardboard box, an old wardrobe handle and large washers, black felt with white stitching, wood pearls on satin ribbon, 12 red LEDs with a switch held by laser cut acrylic, a 9V battery (powering groups of 4 LEDs in series with 470Ω), IVAR 80x30cm, some screws.
Our cooking plate is not for play cooking, just for practicing actual cooking: We decided that our kid needs their own stove. The first iteration was a cardboard box with two circles and an oven door – that was taken up so well that we decided to an upgrade for Easter 2024.
Version 2 got a felt top and was modeled after our cooking plate, with actual switched lights. When storage space inside got tight, so we integrated it into an IVAR rack.
Cat for scale. (It's a small cat.)
Mission accomplished -- and thanks to series resistors, there's hope it can work a few more years (even though I'm freshly out of spare parts).
Even decades after Ethernet moved away from it, the Vampire Tap is still useful in network debugging.
We recently made a birthday cake for a 2-year-old. In his favorite children's book, a group of kids builds a pirate boat, which the cake faithfully renders.
Materials: Biscuit dough and red food dye, a chopstick in green paper, yellow paper, blue paper, tooth picks, marzipan with purple dye; cake: mascarpone cream, cocoa and ladyfingers.
Original sources: "Der kleine Rabe Socke und seine Schätze", "Grün, blau, rot: wir bauen ein Piratenboot!"
chrysn