published: November 14, 2016 — last modified: October 23, 2025
I just published the guide for the five light spheres project. It is the perfect decoration for this Winter. The spheres always display a nice color combination and blend from one color to the next. It is a quiet and artful decoration.
Continue reading on the project page
More Posts
Posted on 2021-01-05— 3D Printing, Projects
I walk you through assembling the gearbox for my 3D-printed cat feeder, step by step. I cover inserting insets, bearings, grub screws, and fitting the NEMA17 motor so the turntable runs smoothly. If you printed the parts from Part 1, follow along — read the full post for photos and testing tips.
Posted on 2021-02-18— 3D Printing, Projects
In Part 6 I walk you through the input panel for my 3D-printed pet feeder: the rotary encoder, LEDs, knob and the example PCB with wiring, filters and level shifting. I include printable files, Gerbers and ordering tips — read the full post for downloads, schematics and testing notes.
Posted on 2021-01-04— 3D Printing, Fun
I experimented with embedding whole PCBs, batteries and coils inside 3D prints to seal electronics invisibly in PETG parts. I explain pausing prints to insert components, then resuming, and share pros, cons and practical tips. Read the full post if you'd like step-by-step ideas and precautions.
Posted on 2021-01-17— 3D Printing, Projects
I created a set of 500 printable boxes with a random line pattern—each box unique, sized 35–120 mm with two lid fits per size. I cover part naming, printing tips, and where to download the STLs. If you use 3D printing, please read the full post for files and guidance.
Posted on 2023-02-02— 3D Printing, Projects
I tested a simple technique to strengthen FFF prints by adding a zig-zag vertical link between the outer and inner perimeter. My demo gcode and findings show how peaks fuse layers and slow crack propagation. If you print regularly, read the full post to see my method and limitations.
Posted on 2019-02-23— Projects
I guide you through building a compact particle sensor node using a Raspberry Pi Zero W and a minimal custom shield, with published Gerbers, STL files and example code. I keep the design simple and extendable—if you'd like to build your own networked air-quality node, read the full post for parts, assembly and setup.