CNC DESIGN CONSIDERATIONS
Radii
Sharp inside corners on a part will have a radius (be rounded) as a natural result of the CNC milling process.
Size
Maximum part size: 10 in. x 7 in. (254 mm x 178 mm)
Maximum depth: ranges from 0.75 in. to 3.75 in. (19 mm to 95 mm). The maximum size which can be milled from either side of the part is 2 in. (51 mm).
Minimum part size: 0.25 in. x 0.25 in. x 0.25 in. (6.4 mm x 6.4 mm x 6.4 mm)
Surface Finishes
All machined parts are left as-milled, which typically means they show visible tool marks. If you require additional finishing, please be sure to specify when requesting a quote.
Text on Parts
Recessed text should have a minimum stroke width of 0.020 in. (0.5 mm). The spacing between characters on raised text should be 0.020 in. (0.5 mm) or greater. If your design permits it, opt for raised text versus recessed.
Thickness
The CNC machining process typically requires nominal part thickness to be larger than 0.040 inc. (1 mm). Parts may be as thin as 0.020 in. (0.5 mm) in regions as long as the nominal part thickness stays above 0.040 in. (1 mm). Features thinner than 0.020 in. (0.5 mm) typically do not survive the machining process.
Threaded Holes
We currently support UNC and UNF threads from #2 up to 1/2 in. and metric threads from M2 to M12.
Tolerances
In general, tolerances of ±0.005 in. (0.13 mm) are expected and achieved.