Your Loki-Nav Guide Is Here

November 13, 2025

This blog post is about using Loki-Nav and aims to help you use it more effectively.
Here’s what you’ll find in this post:

How to use the standard accessories
Standard and luminous compass cores
How to replace a compass core
Mirror scratch concerns
How to use the magnifier
Loki-Nav Video Guide

1. How to use the standard accessories

Inside every kit we’ve placed a spare accessory bag. It contains six O-rings (three thick and three thin) and one green fluororubber pillar.

O-Rings

The O-rings are used when replacing the compass core — you can choose the thick or thin ones depending on fit.

Green Fluororubber Pillar

On the side of Loki-Nav, you’ll see a small green fluororubber pillar. This custom-made part is tougher than ordinary rubber and provides the rotational support for the magnifier. For extra peace of mind, we’ve included one spare pillar in the accessory bag.

2. Standard and luminous compass cores

As shown in the image: the luminous core is on the left, and the three on the right are standard cores.

Key points:

Compass accuracy: Precision is our top priority. Each core is tested at least twice independently. As mentioned in earlier updates, we’ve eliminated factors that could affect accuracy, so there’s no overall deviation in Loki-Nav. Two exceptions are possible: (1) magnetic interference in your environment, or (2) a temporary offset caused by long-distance shipping — which quickly corrects itself.
Interference between cores: Each core is magnetic and works with the Earth’s field. When several cores are close together, they may interfere with each other. You might notice one shifting as another is inserted or removed. This is normal and actually shows their sensitivity.
Luminous compass: The luminous core needs to be “charged” with light (e.g., a flashlight) before it glows, and the glow lasts only a short time. To be honest — in this batch we focused nearly all our effort on precision, which is the most important function of Loki-Nav. As a result, the luminous effect may not meet some expectations. We apologize for this and are continuing to look for better luminous cores on the market.

Storage: It’s no problem to store all the cores together, as long as they’re not kept near strong magnetic fields, which could cause damage.
Air bubbles: Small bubbles are normal and won’t affect performance.
Usage tips: Keep the compass away from magnetic objects. For example, if you purchased the necklace version, don’t keep the core pressed against the chain — the chain may carry slight magnetism and affect accuracy.

3. How to replace a compass core

On the back of Loki-Nav, there’s a small round hole. Use a thin tool (like a stick or toothpick) to gently push the core out.

Before inserting a new core, place an O-ring around it for stability. When pressing it in, keep it level and press with your fingers on opposite sides to ensure even force. This helps the core slide in smoothly and prevents it from sticking or tilting.

4. Mirror scratch concerns

When you first open Loki-Nav, you might notice what look like scratches on the mirror. Don’t worry — they’re only on the protective film. To keep the mirror safe during assembly and QC, we left the film on. After inspection, our colleague Maggie carefully reapplied it before packing. Just peel it off, and the mirror will be spotless.

For daily use, the mirror is set in a slight recess, so the surrounding metal touches surfaces first. This makes it very unlikely for the mirror to get scratched in normal use.

5. How to use the magnifier

In the image, the red-marked part is the magnifier’s support arm. The lid can rotate 360°, but at certain angles it may block the arm and prevent the magnifier from opening. This design is intentional — it prevents accidental opening when using the wood maker function.