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Jan le Roux

Jan le Roux
NodeLab: What Does One Extra Second Awake Cost a Battery-Powered ESP32 Sensor?

Embedded Systems

NodeLab: What Does One Extra Second Awake Cost a Battery-Powered ESP32 Sensor?

Measuring how ESP32-C3 awake time affects the number of successfully received sensor updates from 500 mAh and 1100 mAh Li-Po batteries. How long is one second? It is a good question, but the answer is relative. The perception of one second is very different depending on which side

By Jan le Roux 31 Aug 2026
DIY Archery Gear-Make Your Own Adjustable Finger Sling

Archery

DIY Archery Gear-Make Your Own Adjustable Finger Sling

A simple 3D-printed finger sling that is adjustable, easy to remove and simple to customise. Since I have started with archery, my finger sling was about as basic as it gets: a piece of shoelace with the two ends tied together. It worked perfectly well as a sling, using

By Jan le Roux 19 Aug 2026
Building a Custom Rifle: Step 3-When a Rifle is Born

Gunsmithing

Building a Custom Rifle: Step 3-When a Rifle is Born

In the first two articles of this series, we built the foundation for this project. First came the plug, carefully shaped until it fitted me exactly the way I wanted a rifle to fit. That plug then became a composite mould capable of producing multiple composite rifle stocks. This is

By Jan le Roux 06 Aug 2026
Building a Custom Rifle: Step 2-Making the Mould

Gunsmithing

Building a Custom Rifle: Step 2-Making the Mould

To create a composite mould, a plug (also known as a pattern) is required as a master shape or template that can be used to form the mould.

By Jan le Roux 20 Jan 2026
Building a Custom Rifle: Step 1-Making a Plug (pattern)

Composites

Building a Custom Rifle: Step 1-Making a Plug (pattern)

In composite mould making, a plug (also called a pattern) is the master shape or template used to create the mould. It is an exact, full-scale model of the desired part or component. The plug is critical because the surface quality, dimensions, and geometry of the plug directly determine

By Jan le Roux 08 Nov 2025
Custom Gillo GX Grip

3D Printing

Custom Gillo GX Grip

Custom Gillo GX Grip made for a perfect fit

By Jan le Roux 19 Oct 2024
Skinny and fat arrow holder

3D Printing

Skinny and fat arrow holder

3D Printed arrow holder to organize the fletching process

By Jan le Roux 21 Sep 2024
22LR Ammo transport and storage

3D Printing

22LR Ammo transport and storage

Buying ammo in bulk comes with its own set of challenges, particularly in terms of storage and handling. This solution solves storage, transport and how to keep track of how much stock you have on hand

By Jan le Roux 14 Sep 2024
Diy hearing protection

3D Printing

Diy hearing protection

How to protect your hearing in a cost-effective way

By Jan le Roux 11 Aug 2024
How to do Pillar and Action bedding

Gunsmithing

How to do Pillar and Action bedding

Pillar and action bedding on a rifle are techniques used to enhance the accuracy and consistency of the rifle

By Jan le Roux 06 Apr 2024
CZ457 LRP rifle makeover

Gunsmithing

CZ457 LRP rifle makeover

The DIY journey of a project to enhance the looks and accuracy of my CZ457 LRP Rifle

By Jan le Roux 13 Jan 2024

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