Thinking about using a laser engraver for plastic projects at home? Whether you’re customizing acrylic keychains, labeling plastic bins, or etching your logo on ABS or PET, it’s totally possible — if you use the right type of laser and settings.
この投稿で, we’ll walk through:
- What plastics can be engraved safely
- Common beginner mistakes (and how to fix them)
- Laser settings that actually work
- Which laser engraver is best for clean, no-burn results
Let’s get into it.
What Plastics Can You Engrave with a Laser?
Before anything else — not all plastics are laser-safe. Some will burn, some will melt, その他 (PVCのような) can release toxic gas that damages your laser and your lungs.
Good plastics for laser engraving:
- アクリル (PMMA) – Great for signs, キーホルダー, タグ
- ペット / PETG – Used in packaging, cards, display cases
- ABS – Good for prototypes, ラベル
- ポリカーボネート – Works, but may discolor (test first)
Avoid these:
- PVC / ビニール – Releases chlorine gas when lasered
- ポリスチレン – Melts and smells terrible
- HDPE / LDPE – May warp or give uneven burns
ヒントの場合: Always check for “laser-safe” labels when buying plastic sheets.
My First Attempt Looked Burnt. なぜ?
あなたは一人ではありません. The most common issues people run into when using a laser engraver on plastic are:
| 問題 | What’s Going Wrong |
|---|---|
| Plastic melts or curls | Power too high or speed too slow |
| Burn marks / soot | Diode laser not ideal for clear plastic |
| Fumes or smell | Material is not laser-safe (likely PVC) |
| Edges look rough | Dirty lens, poor focus, or wrong speed |
Laser Settings That Work (Tested with ComMarker OMNI 1)
If you’re using a UVレーザー彫刻機 以下のような コムマーカーオムニ 1, あなたは幸運です: UV beams don’t burn plastic — they break the surface photochemically. それは意味します no melting, そして no discoloration.
Here are some baseline settings I used for different plastics:
| 材料 | スピード (mm/s) | 力 (%) | 頻度 (kHz) | 注意事項 |
|---|---|---|---|---|
| アクリル | 500 | 30 | 30 | Use masking tape for crisp lines |
| PETG | 600 | 20 | 40 | No assist air needed |
| ABS | 300 | 25 | 35 | Go lighter to avoid burn tint |
| ポリカーボネート | 200 | 20 | 20 | May need multiple passes |
Always test your settings on a scrap piece before starting a full project.
Which Laser Engraver Should You Use for Plastics?
If your goal is engraving plastic cleanly and safely, here are two real-world options I’ve used:
コムマーカーオムニ 1 UVレーザー彫刻機
- Why it works: Cold UV laser = no melting, 火傷跡がない
- に最適です: アクリル, clear plastics, 細かい部分
- Bonus: Very little smoke or smell
- Downside: Doesn’t cut deep — it’s for surface engraving
ComMarker B6 MOPA Fiber Laser
- Why it works: 速い, great for colored plastics and coated metals
- Warning: Not ideal for clear acrylic unless it’s painted or masked
- Pro tip: Use grayscale mode for logos and patterns
Common Questions
Q: Why does my diode laser not engrave plastic well?
ダイオードレーザー (blue light) often pass through clear materials like acrylic without engraving. Try painting the surface black or upgrading to a UV laser.
Q: Do I need air assist for plastic?
Not usually. It can blow fumes and melt residue around. If needed, use it gently.
Q: How do I avoid ghosting or double images?
Make sure your material is taped down or secured with a jig — even a small shift will blur the design.
Q: Is plastic engraving dangerous?
Only if you use unsafe materials (PVCのような) or engrave in a non-ventilated area. Always use a fume extractor or exhaust system.
Final Tips for DIY Plastic Engraving
✅ Use UV for clear plastics – no melting, no smell
✅ Secure your workpiece – especially on round or small pieces
✅ Clean your lens weekly – plastic vapor builds up fast
✅ Mask acrylic with transfer tape – cleaner edges every time
✅ Don’t guess your settings – run a material test grid first
Laser Engraving Plastic Is Easier Than You Think
With the right machine and safe materials, engraving plastic is one of the most rewarding DIY applications. Whether you’re making gifts, customizing parts, or launching an Etsy side hustle, ある laser engraver for plastic can deliver sharp, 専門的な結果.
If you’re just starting out, の コムマーカーオムニ 1 紫外線 is hands-down the best choice for precision, 使いやすさ, and safety with plastic materials.
👉 Explore the OMNI 1 now and get ready to engrave cleaner, sharper plastic projects: Shop OMNI 1 »