Instant digital download · Commercial use included · 4.8★ from 776 reviews
Carved wood bas-relief of a skull above a chopper motorcycle with a rider, eagle, and scorpion.
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Gothic & Skull Art

Biker Skull and Chopper Bas-Relief STL with Eagle and Scorpion

$7.19 $7.99 10% off

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  • 📦 Instant digital download (STL file)
  • 🛠️ Tested in Aspire, VCarve Pro, Carveco, ArtCAM, Fusion 360
  • ♾ Unlimited re-downloads
  • ✅ Personal & commercial-use licence: sell what you carve
📐 Design facts
Carving it at your size
Carving size
4 × 8 in (100 × 203 mm)
Relief depth
0.72 in (18.2 mm)
Board thickness
1 in or thicker
Rough with
1/8 in end mill, 40% stepover
Finish with
1/16 in tapered ball nose, 10% stepover
Estimated carve time
about 3 h 10 min (roughing 50 min, finishing 2 h 25 min)
Carving size
5.9 × 12 in (151 × 305 mm)
Relief depth
1.1 in (27.3 mm)
Board thickness
1.5 in or thicker
Rough with
1/4 in end mill, 40% stepover
Finish with
1/8 in ball nose, 10% stepover
Estimated carve time
about 3 h 20 min (roughing 40 min, finishing 2 h 40 min)
Carving size
8.9 × 18 in (226 × 457 mm)
Relief depth
1.6 in (40.9 mm)
Board thickness
2 in or thicker
Rough with
1/4 in end mill, 40% stepover
Finish with
1/8 in ball nose, 10% stepover
Estimated carve time
about 8 h 20 min (roughing 2 h 20 min, finishing 6 h)
Carving size
11.9 × 24 in (301 × 610 mm)
Relief depth
2.1 in (54.6 mm)
Board thickness
2.5 in or thicker
Rough with
1/4 in end mill, 40% stepover
Finish with
1/4 in ball nose (1/8 in for the finest detail, about twice as long), 10% stepover
Estimated carve time
about 10 h 50 min (roughing 5 h 30 min, finishing 5 h 20 min)

Estimates for a mid-size hobby machine (Shapeoko, X-Carve, Onefinity class). Scaling all three axes together keeps the depth in proportion; for thinner stock scale Z on its own. Hardwoods with fine grain (cherry, hard maple, walnut, basswood) hold this detail best. Check your exact setup in Will it cut, free, nothing uploaded.

How we estimate carve time

Finishing is one raster pass over the whole carving with the ball nose shown, at 10% stepover and half of a 1,800 mm/min (71 in/min) feed. Roughing assumes about 45% of the block above the base is waste, cleared with the end mill shown at 40% stepover and 3 mm per pass (1.5 mm for the 1/8 in end mill) at the full feed. The model leaves out acceleration, tool changes and moves between passes, so a real job usually takes somewhat longer. Times are rounded to 5 minutes.

File format
STL only decimated high-quality mesh, binary STL
Model size as supplied
239 × 484 × 43.35 mm
Shape
portrait, 0.494:1
Carve depth
18.1% of the width
Mesh
2,024,278 triangles · 96.5 MB
Base
flat and sitting at zero, ready to machine

Opens directly in Aspire, VCarve Pro, Carveco, ArtCAM and Fusion 360, and in any slicer for 3D printing. For a laser, the relief is first turned into a greyscale depth image, which our Laser Studio app does from this STL. STL only, no OBJ or DXF: the DXF files used in CNC work hold 2D outlines, not the 3D relief surface. Scale it to whatever panel you are cutting. Scaling all three axes together keeps the depth in proportion; scale Z on its own for a shallower carve. How to open it in your software.

759 five-star reviews from carvers
"Model was very detailed and clean."
— Verified buyer
"Cool little piece!! I made it out of walnut and it turned out really nice! I need to figure out how to highlight the straps and such like the picture!"
— Verified buyer

About this design

A grinning skull looms over a chopper while a long-haired rider grips the bars, a fierce eagle stands guard, and a scorpion creeps along the lower edge. This is the kind of piece that stops people mid-stride in a garage or a shop. It reads tough from across the room and rewards a closer look with detail packed into every inch, from the tread on the tire to the feathers on that eagle. What you get is a high-detail bas-relief STL built for clean cutting. The depth is generous, so shadows fall hard between the skull, the bike, and the background, and the toolpaths run smooth without fighting the geometry. It is ready for Aspire, VCarve Pro, Carveco, and ArtCAM, and it cuts well on a CNC router or prints fine on a 3D printer. For a crisp result, rough the shape with a 6mm end mill at 40 percent stepover, then come back and finish with a 3mm ball nose at roughly 10 percent stepover to pull out the fine lines in the hair, the engine, and the eagle's eye. Run it in hardwood for wall art, garage plaques, motorcycle shop signage, or one-off gifts for the riders in your life. This is an instant digital download, so you can have it on the machine tonight. Commercial use is included, which means you are free to carve it, sell the finished pieces, or gift them without a second thought. Add it to your library and give the bikers something they will actually want hanging on the wall.
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Laser Studio opens this STL with zero conversion and turns them into a ready-to-burn 3D-illusion engrave. Carving on your CNC instead? CNC Match lines up a name, a date or shading on a photo of the finished piece, so the laser burns right onto the carving.

Windows desktop app · $40 once · free updates · it prepares the files, your laser software burns them

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