ACMER 100W MOPA Fiber Laser | Real Engraving Tests on Metal, Slate & More

In this video I put the ACMER 100W MOPA Fiber Laser to the test on real materials including metal, slate, anodized aluminum, and powder-coated stainless steel. I use this fiber galvo laser for deep brass coin engraving to MOPA color marking, you’ll see exactly how this machine performs. I don’t just show the results—I share the exact LightBurn settings used for each material (Power, Speed, Frequency, and Pulse Width) so you can replicate the results yourself. Materials tested in this video: ✅ Anodized Aluminum – High-contrast business cards ✅ Slate – Clean, detailed stone engraving ✅ Powder-Coated Stainless Steel – Testing a black flask ✅ Brass Engraving – Deep engraving on coins, a guitar pick, and a bottle opener ✅ MOPA Color Marking – Demonstrating color marking on stainless steel Whether you're a laser hobbyist or running a laser engraving business, the ACMER 100W MOPA shows impressive speed, precision, and versatility. ACMER 100 watt MOPA Fiber Laser Link: https://tidd.ly/3N2zS9o My Amazon affiliate links. Ordering from these links help support the channel at no additional cost! Items I used in this video: ====================================================== 🔥My Affiliate shop: https://www.amazon.com/shop/baronleathercraft Subscribe to my channel: https://www.youtube.com/channel/UCim9LMjdhWVwA-sNbgCq-Xw?sub_confirmation=1 COME ENJOY MY ETSY SHOP ====================================================== ETSY: https://www.etsy.com/shop/baronleathercraft BARON LEATHER CRAFT SOCIAL MEDIA ====================================================== FACEBOOK: https://www.facebook.com/baronleathercraft INSTAGRAM: http://www.instagram.com/baronleathercraft Here's what we cover in this review: 00:00 ACMER 100W MOPA Fiber Laser Overview 01:01 Unboxing the ACMER Fiber Laser 02:17 Building the ACMER 100W Fiber Laser 02:53 How to Focus a Fiber Galvo Laser 03:38 Setting Up the Laser in LightBurn 04:25 Engraving Anodized Aluminum Business Cards 05:04 Engraving Aluminum Dog Tags 05:34 Engraving Tin Boxes 06:39 Deep Engraving Brass Challenge Coins 07:32 Deep Engraving Brass Bottle Openers 08:06 MOPA Fiber Laser Color Marking 09:50 Final Verdict #fiberlaser #MOPAfiberlaser #laserengraving #acmer #metalengraving #slateengraving #colormarking #baronleathercraft #galvolaser