Marine Corps CH-53 Helicopter CNC Relief STL
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$6.39 here, $7.99 for the same file on Etsy
- π¦ Instant digital download (STL file)
- π οΈ Tested in Aspire, VCarve Pro, Carveco, ArtCAM, Fusion 360
- βΎ Unlimited re-downloads
- β Personal & commercial-use licence: sell what you carve
- Carving size
- 8 Γ 5.8 in (203 Γ 148 mm)
- Suggested depth
- 0.27 to 0.34 in (6.8 to 8.5 mm)set Z on its own when you import. Scaling all three axes together gives 0.51 in, deeper than you need.
- Board thickness
- 0.75 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 4 h 5 min (roughing 35 min, finishing 3 h 30 min)
- Carving size
- 12 Γ 8.8 in (305 Γ 222 mm)
- Suggested depth
- 0.40 to 0.50 in (10.2 to 12.8 mm)set Z on its own when you import. Scaling all three axes together gives 0.76 in, deeper than you need.
- Board thickness
- 1 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 4 h 25 min (roughing 30 min, finishing 3 h 55 min)
At the full 0.76 in depth, a standard 1/8 in ball nose (about 3/4 in of cutting length) cannot reach the bottom. Use the suggested depth, or a long-reach bit.
- Carving size
- 18 Γ 13.1 in (457 Γ 334 mm)
- Suggested depth
- 0.60 to 0.76 in (15.4 to 19.2 mm)set Z on its own when you import. Scaling all three axes together gives 1.1 in, deeper than you need.
- Board thickness
- 1.25 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 10 h 30 min (roughing 1 h 35 min, finishing 8 h 55 min)
At the full 1.1 in depth, a standard 1/8 in ball nose (about 3/4 in of cutting length) cannot reach the bottom. Use the suggested depth, or a long-reach bit.
- Carving size
- 24 Γ 17.5 in (610 Γ 445 mm)
- Suggested depth
- 0.80 to 1 in (20.3 to 25.4 mm)set Z on its own when you import. Scaling all three axes together gives 1.5 in, deeper than you need.
- Board thickness
- 1.25 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 11 h 40 min (roughing 3 h 45 min, finishing 7 h 55 min)
At the full 1.5 in depth, a standard 1/8 in ball nose (about 3/4 in of cutting length) cannot reach the bottom. Use the suggested depth, or a long-reach bit.
- Carving size
- 28.7 Γ 20.9 in (728 Γ 531 mm)
- Suggested depth
- 0.80 to 1 in (20.3 to 25.4 mm)set Z on its own when you import. Scaling all three axes together gives 1.8 in, deeper than you need.
- Board thickness
- 1.25 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 16 h 40 min (roughing 5 h 20 min, finishing 11 h 15 min)
At the full 1.8 in depth, a standard 1/8 in ball nose (about 3/4 in of cutting length) cannot reach the bottom. Use the suggested depth, or a long-reach bit.
Estimates for a mid-size hobby machine (Shapeoko, X-Carve, Onefinity class). Board and time are for the suggested depth. In Aspire, VCarve or Carveco, unlock Z from X and Y when you import and type the depth; keep the base height at 0. 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
- 728 Γ 531.2 Γ 45.97 mm
- Shape
- landscape, 1.37:1
- Carve depth
- 6.3% of the width
- Mesh
- 2,025,246 triangles Β· 96.6 MB
- Base
- flat and sitting at zero, ready to machine
- Smallest size worth carving
- 200 mm Β· keeps 99.4% of the fine detail simulated with a 3 mm ball nose
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.
"Excellent STL model with outstanding detail and clean geometry. It machined perfectly on my CNC router, and the finished piece carved from solid European beech wood looks fantastβ¦"
"Turned out beautifully. Thank you."
About this design
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