It’s 2:30 AM in the GarageCraft3D lab, the RA2 rotary is whining, moly dust is in the air, and we have officially crossed into pewpew laser territory.
This week’s victim? Copper Moscow Mule mugs.
The Problem
Reflective, clear-coated copper does not like to play nice with diode lasers. First passes looked weak, patchy, and way too slow. We were staring down 30 minutes per side. That is a non-starter for production.
The Breakthrough
After a little garage science, we found the enemy: the factory clearcoat. A quick acetone wipe, a light moly spray, and a flash with a heat gun prepared the surface. Suddenly the pewpew actually stuck.
The Results
- Converted vector art to bitmap for clean raster passes
- Dialed in 200 mm/s at 100% power
- Cut runtime from 30 minutes to 7 minutes per side
- Throughput = 3 mugs/hour → about 12 mugs per late-night session
Why It Matters
Tap handles put your brand on the bar.
Copper mugs put your brand in your customer’s hand.
Brewery merch just got a pewpew upgrade.
That is the latest from GC3D: keep it scrappy, keep it late, and always trust the pewpew.
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