Instant digital download · Commercial use included · 4.8★ from 776 reviews
Carved wood relief of a V-twin engine with three skulls, a raven, pipes, and flames below.
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Gothic & Skull Art

V-Twin Engine Skull Relief with Raven and Flames STL

$6.39 $7.10 10% off

$6.39 here, $7.99 for the same file on Etsy · 12 people favourited it

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  • 📦 Instant digital download (STL file)
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📐 Design facts
Carving it at your size
Carving size
8 × 8 in (203 × 203 mm)
Relief depth
0.80 in (20.3 mm)
Board thickness
1.25 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 6 h 40 min (roughing 1 h 50 min, finishing 4 h 50 min)
Carving size
12 × 12 in (305 × 304 mm)
Relief depth
1.2 in (30.5 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 7 h (roughing 1 h 35 min, finishing 5 h 25 min)
Carving size
18 × 18 in (457 × 457 mm)
Relief depth
1.8 in (45.7 mm)
Board thickness
2.5 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 17 h 25 min (roughing 5 h 15 min, finishing 12 h 10 min)
Carving size
24 × 24 in (610 × 609 mm)
Relief depth
2.4 in (61 mm)
Board thickness
3 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 23 h 10 min (roughing 12 h 25 min, finishing 10 h 50 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
464.13 × 463.62 × 46.44 mm
Shape
landscape, 1.001:1
Carve depth
10% of the width
Mesh
2,028,806 triangles · 96.7 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
"This design turned out great on my CNC machine. Lots of detail."
— Verified buyer
"Nice CnC STL, carved very well, can't wait to finish it."
— Verified buyer

About this design

A big V-twin motor sits dead center, pistons and cooling fins stacked tight, with three skulls crowding in and a raven perched on the edge like it owns the place. Flames lick along the bottom and heavy pipes curl out from the block. Carve this one and you get a wall piece that looks like it rolled straight out of a chopper shop, the kind of thing a biker stops and stares at. This is a high-detail bas-relief STL built for deep, dramatic cuts. The layered composition gives you real shadow play between the engine castings, the bone, and the feathered raven, so the toolpaths read clean even in the busy areas. It runs nicely through Aspire, VCarve Pro, Carveco, and ArtCAM, and it is ready for a CNC router or a 3D printer. For a clean result, rough it out with a 6mm end mill at 40 percent stepover, then come back with a 3mm ball nose at a 10 percent stepover to pull out the skull cracks, the pipe ridges, and the AC/DC style center badge. Cut it in oak or walnut for a man cave plaque, a garage sign, or a one-off gift for the mechanic or rider in your life. Download it the second you check out and start cutting today. Commercial use is included, so carve it for yourself, stack a few for the workbench, or sell the finished pieces at shows and shops. Grab the file, load your toolpaths, and let the chips fly.
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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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