ABS (CNC Machined)

abs cnc machining plastic material

At a Glance

Processes

Lead Time

Colors

Tolerance

Price

Applications

3 days
Black, neutral
ISO 2768
$
Impact-resistant applications, production-like parts (pre-injection molding)

About the Material

ABS is a low-cost engineering plastic, widely used for pre-injection molding prototypes. CNC machined ABS is a great option for production-like parts, where detail and mechanical properties are important.

Material Properties

Tensile Strength

Elongation at Break

Hardness

Density

Maximum
Temperature

McMaster Part Number

5,100 PSI
40%
Rockwell R100
0.969 g/㎤
0.035 lbs / cu. in.
160° F

Material Finish

ABS has a somewhat matte finish (think lego bricks) and can be painted. Certain faces may appear more shiny depending on their geometry and how they’re machined. If painting ABS parts, finish will be dependant of the choice of paint.

Design Recommendations

Max Part Size

Min End Mill Size

Min Drill Size

Min Wall Thickness

Undercuts

Radii : Depth

1200 x 500 x 152 mm
[x, y, z] (mill) 

152 x 394 mm 
[d, l] (lathe)
0.8mm
(0.03 in)
0.5mm
(0.02 in)
0.5 mm
Square profile, full radius, dovetail profiles
Depth must not exceed 12x drill bit diameter.
For end mills, depth must not exceed 10x tool diameter.

Cost Saving Tip

To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii.

Related Resources

Engineer's Guide to CNC Machining for Prototyping Hardware
Fictiv CNC Material Datasheet