Laser/Parameters
| Language: | English |
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Verified parameters for the 100W BRM lasercutter:
Probably outdated, as the tube was replaced on 2024-02-02. Verify before cutting! And mark it in the table as verified
| Material | Cut Speed (mm/s) | Cut Power | Engrave Speed (mm/s) | Engrave Power | Comments |
|---|---|---|---|---|---|
| Black granite | n/a | n/a | 300 | 50% | |
| Linen cloth | 300 | 70% | n/a | n/a | |
| Finnboard/Finnpappe 0,9mm | 77 | 100% | ? | ? | 2024 maxvalue |
| Finnboard/Finnpappe 4mm | 25 | 98% | ? | ? | |
| Buchbinderpappe 0,5mm | 110 | 98% | ? | ? | 2023 maxvalue |
| Plywood birch 3mm | 10-35 | 95% | 250 | 30 | Does cut properly with 35mm/s but in some places <10mm/s are required. |
| Ikea PP Dosen | x | x | 200 | 30 | 10mm Fokusabstand |
| Polyesterstoff | 150 | 70% | ? | ? | Fokus ist schwierig... |
| Spacecraft Multi Layer Insulation | 100 | 80% | ? | ? | Can occasionally melt together again after cutting |
| Cork 5mm (Kork-Matte) | 20m | 100-100% | ? | ? | |
| Plywood for "engraving" vector lines | 150 | 7.5-37.5% | n/a | n/a | See below
|
| Gravur: Eloxiertes Aluminium | - | - | 120 | 80% | Fokus: 7mm |
Attraktor hat den gleichen Lasercutter, deren Wiki hat viele Parametervorschlaege.
Notes on engraving vector lines
When using the "cut" mode to scratch thin lines into a surface (say, outlines of fields in a board game, when the full board is cut through), the laser is moved at high speeds (say, 150mm/s) with low power, but slows down when lines are bent too tightly. This is where the minimum cut power shines: The cutter will reduce power as it speeds down, to avoid burning through the material. If you set the lower bound too low, lines will get lost where it slows down (because the effect on the material is not linear, and 1% may not do anything at all any more). If you set it too high, the prolonged exposure on a single spot can send the laser all through the material.
For test cuts, take a coarse and a fine sample from your picture.
A practical test file is slowdowntest, which has multiple colors to try out different settings, and lines of varying curvature to see the effects.
