プラスチック製の部品を使用して、永続的なシリアル番号を追加する必要がある場合, あなたはおそらく疑問に思ったでしょう: Can a laser engraver do this accurately? The answer is yes—and in this project, I’ll walk you through how I used the ComMarker Omni 1 UV laser engraver to mark nearly 40 plastic key fobs with crisp, readable codes. This job also gave me a great opportunity to build a quick custom jig, streamline the workflow, and take full advantage of the laser engraver’s precision on plastic.
Why I Chose a UV Laser Engraver for Plastic Projects
Not all laser engravers handle plastic the same way. In my experience, diode or CO₂ laser engravers can melt or discolor certain plastics. That’s why I used the コムマーカーオムニ 1, a UV laser engraver that offers a clean “cold burn” ideal for delicate materials.
こんな方に最適: プラスチック, ガラス, アクリル, レザー, およびコーティングされた材料
Settings used:
- スピード: 1000 mm/s
- 頻度: 40 kHz
- ライン間隔: 0.03 んん
- Q pulse: 15
- Crosshatch fill, 1 合格
You can check out the オムニ 1 UV laser engraver here.
ステップ 1: Trace the Object and Create a Jig for Your Laser Engraver
A reusable jig helps you place parts accurately every time you use your laser engraver. I started by tracing a key fob on white paper with alignment marks, took a top-down photo, and imported it into LightBurn. I scaled it using a 1-inch guide, then used the “Trace Image” tool to create a clean path around the shape.
ヒントの場合: Make sure your traced image has clear lines and good contrast for LightBurn to pick up the edges accurately.
ステップ 2: Add Alignment and Finger Access Features to the Jig
I used LightBurn’s “Offset” and “Node Edit” tools to trim the top of the cutout and added a finger hole using a simple circle tool. These small details ensure that the key fobs are easy to remove once the laser engraving is done.
ステップ 3: Mount the Jig and Center It in Your Laser Engraver
Once the jig was cut out on a 3mm Baltic birch using a CO₂ laser, I glued the layers together and mounted it to the Omni 1’s working bed using the 5mm bolts. The jig held each key fob snugly and aligned perfectly with the laser engraver’s target area.
ステップ 4: Add Serial Numbers Using LightBurn’s Variable Text Tool
Using LightBurn’s “Serial Number” feature, I created four-digit codes starting from 0030. This feature allows the laser engraver to automatically advance to the next number after each burn, saving time and minimizing errors.
Settings for numbering:
- Text type: Serial number
- Format: 0000
- Starting value: 0030
- Auto advance: ON
ステップ 5: Burn and Batch Engrave Using the Laser Engraver
Once aligned, each key fob took about 4 seconds to engrave. I simply dropped in the next fob, pressed the button, and let the laser engraver do its thing. The UV laser produced a clean, high-contrast mark on every plastic surface.
Bonus Tip: Keeping Serialized Items in Order
To organize all the engraved key fobs, I printed a DIY cable chain using PLA and TPU and loaded the fobs in reverse order. It’s not permanent, but a handy temporary solution while waiting for a steel cable version.
コムマーカーオムニ 1 レーザー彫刻機
あらゆる素材を解き放つ次世代レーザー. ZeroBurn™ 彫刻テクノロジー 世界初の 16K HD レーザー彫刻機 10,000mm/s SpeedMax™ 彫刻システム UV レーザーですべての素材のロックを解除 ColdFront™ サーマルテクノロジー 電動リフティング 2 EZCADおよびLightBurn 360°回転彫刻システムと互換性のあるオプションのレンズ
Why a UV Laser Engraver Was the Right Tool for the Job
This project reinforced just how useful a レーザー彫刻機 like the ComMarker Omni 1 can be for small production runs, especially on tricky materials like plastic. The precision, スピード, and ease of automation made it a no-brainer. Whether you’re doing serialized key tags, ID cards, or small parts, a UV laser engraver is a great investment.
Recommended machine: コムマーカーオムニ 1 UVレーザー彫刻機
こんな方に最適: プラスチック, ガラス, アクリル, and precision batch jobs
Key takeaway: A good jig and serial-number automation can save you hours.