last modified: October 23, 2025
Posted on 2024-03-24— 3D Printing
I've created a collection of 3D-printable flower pots—geometric, Roman-vase inspired, striped and spiral—optimized for practical printing on machines like the Prusa XL. I share lessons on wall thickness, corner radii, nozzle sizes and model files. Read on for design details and downloads.
Posted on 2023-02-12— 3D Printing, Learn
I'm not a 3D‑printing expert, but I show how simple wall profiles — correct XY/Z thickness, chamfers, and internal recesses — make printed boxes stronger and lighter. I share CAD steps, simulations, and common mistakes in plain terms. Read the full post for practical tips to improve your prints.
Posted on 2023-02-04— 3D Printing, Learn
I explain why I add small guide bridges to tricky gaps in my 3D prints and how they help PETG bridging. I show the settings I use and demonstrate results in my modular lantern model. Read the full post to see images and step-by-step tips to apply this to your designs.
Posted on 2020-12-20— 3D Printing, Projects
I've designed a simple magnetic filament filter that snaps onto a 16mm feed-through to catch dust and particles with a microfiber-wrapped sponge. It's easy to attach, low-friction, and printable in PETG — STL and Fusion360 files are included. Read the full post for printing, assembly and download links.
Posted on 2017-04-29— Projects
I describe making a small alpha batch of my low-cost plant-watering sensor: ordering parts, prepping and soldering wires, testing PCB assembly with stencils, and solving sealing with epoxy. If you’re interested in practical prototyping tips and lessons learned, please read the full post for photos and detailed steps.
Posted on 2017-03-09— How and Why
I walk you through designing the final PCB for a low-cost plant watering sensor: choosing tools, shaping the board, iterative layouts, BOM decisions, assembly planning and unit-cost calculations. If you want practical steps and cost details, please read the full post to follow the next parts.
Posted on 2017-03-04— How and Why
I guide you through writing a near-final firmware for my cheap plant watering sensor, describing module structure, incremental development, and practical tests. I cover ADC sampling, oscillator checks, EEPROM settings and a prototype fix for the push-button. If you’re building a similar device, I invite you to read the full post.
Posted on 2017-03-03— How and Why
In part three I assemble and test the prototype PCB, set ATtiny13A fuses, and refine user interaction and firmware plans. I cover LED display choices, power measurements and a modular firmware approach. If you’re building a low-cost plant sensor, read the full post for practical steps and diagrams.
Posted on 2017-02-14— How and Why
I take you through part two of my cheap plant-watering sensor project, testing a prototype: power draw, LED impact, oscillator and MCU startup timing, voltage-divider checks, firmware inputs, and PCB preparation. If you want to see the detailed measurements and next steps, I invite you to read the full post.
Posted on 2017-02-08— How and Why
I walked through designing a cheap capacitive plant watering sensor, from goals and measurement options to component selection and early prototypes. I explain why I chose a CR2032‑powered op‑amp oscillator, ATtiny MCU and low‑power timer. If you’re curious, read the full post for details and test results.