Size
To topSmall features may be allowed, but the diameter in any region should not be less than 0.030 in. (0.76mm). Sharp conical points are allowed; angles should be greater than 30 degrees. Walls thinner than 0.020 in. (0.5mm) typically do not survive the machining process. For specific turning dimensions by material, see maximum part extents for machining.
Typically, facfox can maintain a machining tolerance of +/- 0.005 in. (0.13mm).
Live Tooling Capabilities
To topOur lathe machines contain live tools that allow additional milled features to be added to turned parts including flats, slots, and grooves. We can also add on-axis, axial, and radial holes to turned parts, but only support holes that are either parallel or perpendicular to the axis of revolution, and we cannot accommodate holes at odd angles.

Materials
To top- Aluminum
- Brass
- Low Carbon Steel
- Steel Alloy
- Stainless Steel
- Titanium

Surface Finishes
To topParts that are turned typically have a very smooth surface finish. The as-machined surface finish of the cylindrical areas will typically be much smoother using the lathe than the mill, so consider this when selecting the machining method for those parts that qualify for either method. Areas cut with live tooling, such as flats and slots, may have visible tools marks. If desired, the metal parts can be lightly bead blasted leaving a fine matte finish. Hard metals like steel and stainless steel can also have edges broken (deburred) with a light bead blast to remove metal slivers, and sharp or rough areas.
ALUMINUM | Edges broken with visible toolmarks, edges broken with light bead blast, or sharp edges with visible toolmarks |
---|---|
ALL OTHER METALS | Edges broken with visible toolmarks or edges broken with light bead blast |

Threaded Holes
To topWe currently support UNC and UNF threads from #2 up to 0.5 in., and metric threads from M2 to M12. Avoid modeling internal threads on your part design.
Radii
To topSharp inside corners on a part will be radiused (rounded) as a natural result of the CNC machining process. Resulting radii will be identified before the part is milled. Turned outside corners will typically include a 0.005 in. chamfer.
Minimum hole size:
- On-axis and axial: 0.04 in. (1mm)
- Radial: 0.08 in. (2mm)
Grooves:
- Minimum OD groove width: 0.047 in. (1.2mm)
- Maximum OD groove depth: 0.95 in. (24.1mm)—varies with groove width
- ID grooves are not supported at this time
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