JC 010
CIRCULAR SHAPE JEWELRY BOX
Table of Contents
1.
2.
3.
4.
5.
Introduction.
Materials and Tools.
Vectors and Dimensions.
Instructions.
4.1 Manufacturing the Lid.
4.2 Manufacturing the Base.
Recap.
1 Introduction:
This project involves manufacturing a lid and base for a jeweler box using a CAD/CAM program and
CNC router. The lid and base can be constructed from wood or other materials.
2 Materials and Tools:
To manufacture the lid and base, you will need:
 A CAD/CAM program
 A CNC router
 Double-sided job type
 Material of desired thickness
 6mm straight end mill(1/4”), 8mm straight end mill (5/16")
 Taper ball nose bit with a .75mm radius
 3mm(1/8”), 6mm (1/4") ball nose bit
 Vector files (SVG or DXF format)
 3D model file (STL format)
3 Vectors and Dimensions
Vectors
Vectors for Lid
Vectors for Base
JC 010
0.2362
Dimensions
0.2500
0.4075
CIRCULAR SHAPE JEWELRY BOX
A
1.4567
0.3150
5.0906
5.9055
Ø5.9055
Ø5.4331
Ø5.0906
0.0138
0.0138
0.9449
R0.2362
0.2362
A
0.1969
TOP VIEW
SEC A-A
A
6.35
10.35
6.00
* The above dimensions are in inches
37.00
8.00
129.30
150.00
Ø150.00
Ø138.00
Ø129.30
0.35
0.35
24.00
A
TOP VIEW
* The above dimensions are in mm
R6.00
6.00
5.00
SEC A-A
JC 010
CIRCULAR SHAPE JEWELRY BOX
4 Instructions
4.1 Manufacturing the Lid:
To manufacture the lid for this project, you will need a double-sided job type to carve both top and
bottom. The size of your work should be 175mm (6.88”) high (X) and 175mm (6.88”) wide (Y), with the
exact thickness of your material (z). The default dimension of stl file are 150mm (5.9055”) in diameter
and 24mm (0.9448”) (Z) Thick.
Here are the steps to follow:
1. Load the Lid.stl 3D model into your CAD/CAM program for the top side of lid. For the bottom
side, use the vector files provided. Note that the stl file is only necessary for top side.
2. If your project is measured in inches, scale the model to 5.9055 inches. Remember that the stl
file won't scale itself, so set either the X or Y axis to 5.9055'' and rest will scale accordingly.
3. If your program supports it, use the svg format for vector files, as it scales itself. Otherwise,
scale the dxf vectors to 5.9055''. After importing the 3D model, import one of the vector files
that work for you.
4. If your material is thicker, consider moving the model to the bottom of the material and using a
roughing toolpath to remove the extra material. This will make it easier for the ball nose tool to
work with. Use an 8mm straight end mill (5/16") for the roughing toolpath.
5. Carve the top of the lid using a taper ball nose bit with a 0.75mm radius and a 3D Finishing
toolpath for optimal results. If you don't have access to this specific tool, you can use a 3mm
(1/8") ball nose bit instead, but the details of the carving may be compromised. Use a 10% Step
over.
6. Create a vector for the model's contour that is 30% bigger than the cutting tool. Use the larger
vector area as the machining area in the 3D Finishing toolpath to enable the tool to produce the
tapered edges on the model's border without going too far. (If using a straight ball nose with a
3mm diameter, it's recommended to use a vector that is 1mm larger than the contour.
However, if using a tapered ball nose with a 0.75mm radius, offset the vector by 0.4mm to
ensure optimal results)
7. Use a Profile toolpath on the top side of the carving. Use the outer black vector to cut the
material, leaving a 6mm thickness at the bottom that can be machined later. This will ensure
that the lid has a consistent thickness and sufficient strength to withstand the remaining
machining operation on the bottom side. Use 6mm (1/4”) or 8mm (5/16”) straight end mill for
this operation.
JC 010
CIRCULAR SHAPE JEWELRY BOX
8. Flip the material over and carve the bottom side of the lid select pocketing toolpath (To fit the
lid onto the box). Use green vector as machining area and select Straight End Mill 8mm
(equivalent to 5/16”) with 30-40% Step over. Set the depth of this toolpath to 6mm (1/4”).
Please note that a recommended gap of 0.35mm (0.0137”) should be left between the green
and magenta vectors or between the lid and the base to ensure a proper fit with some
clearance. However, this value may vary depending on your machine's Z-axis tramming. If your
machine spindle is perpendicular to the bed, you may be able to reduce this value.
9. Use a Profile toolpath to separate the model from the rest of the material, using the outer black
vector for the profile toolpath. Use tabs to keep the model fixed to the wood until the cutting
operation is complete.
4.2 To manufacture the base:
For the base:
1. Use the vectors provided in base file and select the inner black vector to machine material
inside.
2. Use a pocketing tool path and a larger 6mm, 8mm, or 12mm straight end mill with a step over
of 30 to 40% of the tool diameter.
3. The cutting depth should be 37mm (1.456”), or whatever depth you want according to your
material thickness.
4. Typically, the cutting depth per pass will be 1 to 1.5 times the diameter of the tool to remove
material.
5. Use 6 to 7 passes to complete the pocketing operation if using a 6mm tool, and adjust the
cutting depth per pass depending on your machine and work clamp.
To create the step:
1. Use the profile toolpath and select the magenta-colored vector.
2. Set the toolpath to move outside of this vector, with a depth of cut 5mm (0.196”) and using a
straight end mill.
To create the filleted edge:
This can be done with simple 6mm radius router bit and router. However if you don’t have this tool here are
the steps to follow
1. Import the STL file for the base.
2. Set a two-sided job type and flip the material to carve the bottom side, just like you did for the
lid.
3. Use a 3D finishing toolpath with a 6mm ball nose bit to create the shape.
JC 010
CIRCULAR SHAPE JEWELRY BOX
4 Recap
1. Set a two-sided job type.
2. Use an 8mm straight end mill (5/16") for the roughing
toolpath to remove excess material.
3. Carve the top of the lid using a taper ball nose bit with a 0.75mm radius and a 3D Finishing
toolpath for optimal results.
JC 010
CIRCULAR SHAPE JEWELRY BOX
4. Use a Profile toolpath on the top side of the carving.
Use the outer black vector to cut the material, leaving a
6mm thickness at the bottom that can be machined later.
5. Flip the material over.
6. Use green vector as machining area and select Straight End
Mill 8mm (5/16”) with 30-40% Step over. Set the depth of this
toolpath to 6mm (1/4”).
7. Use the outer black vector for the profile toolpath to
separate the model from the rest of the material. Use tabs
to keep the model fixed to the wood until the cutting
operation is complete.
Following a similar approach, the base of the box can be
produced.
Note that the instructions provided here are general guidelines and may vary depending on your
specific materials, tools, and machine capabilities. It is recommended to practice on scrap material
before attempting the final project.
Sales of the digital models from Machine3dMarvels do not transfer ownership of the copyright, so it is
illegal to sell, share, or distribute digital designs obtained from this store. However, you are allowed to
create tangible goods using these digital designs with a CNC router or 3D printer and construct them
from wood or other materials.