5mm Cast Acrylic Laser Kerf & Slot-Fit Comb Generator
Achieve rock-solid, glue-free box joints in 5mm Cast Acrylic. Measure your beam kerf with our test cut calculator and generate a customized thickness gauge comb with millimeter-engraved slot sizes.
Laser Kerf Offset & Custom Slot-Fit Test Comb SVG Generator
Preset: 5mm Cast Acrylic (Acrylic / Polymer)
Typical for 5mm Cast Acrylic: Diode ~0.18mm | CO2 ~0.2mm
In LightBurn Cut Layer settings: set Kerf Offset = 0.07mm (Outward) to produce parts that match your exact drawn CAD dimensions.
Draw this exact slot width in Fusion 360, Illustrator, or MakerCase for a perfect press without needing software compensation.
Thicker acrylic shows a slight optical V-taper. Measure both top and bottom edges of the cut slot with calipers to determine effective midpoint slot engagement.
Monetization Slot: Native Under-Download Banner
High-CTR placement positioned directly below the SVG export and rotary calculations. Configure your Adsterra native key in src/config/adsterra.ts.
5mm Cast Acrylic Kerf & Joint Fit Specifications
Pre-Rendered Specs| Material Substrate | 5mm Cast Acrylic (Acrylic / Polymer) |
|---|---|
| Nominal Sheet Thickness | 5 mm |
| Caliper Measured Average | 4.85 mm |
| Typical Diode Laser Beam Kerf | 0.18 mm (LightBurn Offset: 0.09 mm) |
| Typical CO2 Laser Beam Kerf | 0.2 mm (LightBurn Offset: 0.1 mm) |
| Press-Fit Slot Target (-0.05mm) | 4.75 mm |
| Snug-Fit Slot Target (0.00mm) | 4.85 mm |
| Sliding-Fit Slot Target (+0.08mm) | 4.95 mm |
| Recommended Comb Test Range | 4.6mm to 5.1mm (9 slots at 0.05mm steps) |
Fabrication & Cutting Advice for 5mm Cast Acrylic
Thicker acrylic shows a slight optical V-taper. Measure both top and bottom edges of the cut slot with calipers to determine effective midpoint slot engagement.
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5mm Cast Acrylic Kerf & Fit FAQs
Q1: What is the typical laser beam kerf for 5mm Cast Acrylic?
On a standard 20W/40W diode laser, 5mm Cast Acrylic typically exhibits a beam kerf width of 0.18mm. On a CO2 laser with a standard 50.8mm (2-inch) focal lens, expected kerf is approximately 0.2mm.
Q2: What LightBurn kerf offset should I enter for 5mm Cast Acrylic?
Enter half of the measured beam kerf as an Outward Kerf Offset in LightBurn's cut layer settings: 0.09mm for diode lasers, or 0.1mm for CO2 lasers. This enlarges outside cut lines and shrinks inside hole cuts so parts match your CAD drawings.
Q3: What slot width should I design in CAD for a tight press-fit in 5mm Cast Acrylic?
For a tight, glue-free press fit (interlocking finger/tenon joints), design your CAD slots to 4.75mm. For a snug friction fit, use 4.85mm. For sliding lids or loose tabs, use 4.95mm.
Q4: What are the best cutting practices for 5mm Cast Acrylic?
Thicker acrylic shows a slight optical V-taper. Measure both top and bottom edges of the cut slot with calipers to determine effective midpoint slot engagement.