PMMA (Acrylic) CNC Machining

PMMA, also known as acrylic, is a transparent plastic and a substitute for glass. PMMA is also an economical alternative to PC (polycarbonate).

CNC machining PMMA is an ideal solution to produce parts that require excellent optical properties, high UV stability, good tensile strength.

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Our PMMA (Acrylic) Materials

CNC PMMA is suitable for optical and lighting applications. PMMA has good machinability and is an alternative to glass. Various surface finishing options are available for PMMA CNC parts.

Material	Maximum Printing Size	Standard Lead Time	Tolerance	Color
PMMA (Acrylic)	10001000600mm	4 Business Days	0.05/0.1 mm	Translucent, Black, White, Blue, Red, Tan

Material Performance

Excellent Optical Properties
Scratch Resistance
Good Polishability
High UV Tolerance
Good Flexural Strength

Advantages

PMMA is highly recommended material to make transparent ad translucent protypes because of its excellent optical properties.
Rigid and durable. PMMA has high strength, good abrasion and UV resistance, excellent dimensional stability, making it a reliable material.
Green. PMMA is recycle and is highly biocompatible.
High precision and low cost. PMMA is an affordable plastic to make CNC parts. Accurate PMMA parts can be created by CNC milling or CNC turning services.

Applications

> Food Industry (Bottles and Container Prototypes)

> Automotive Parts (Light Covers)

> Lighting

> Lenses

> Signs

> Jewellery

How to CNC machining PMMA (Acrylic)?

Step 1. Convert the CAD file into a language that CNC machines can work with, that's G-code.

Step 2. The operator will place the PMMA workpiece that is cut to a specific size on the machine bed. Then it is time to mount the PMMA workpiece on the machined bed or by a vice.

Step 3. As the computer controls the CNC cutting tools to move to the pre-set coordinates, so precise positioning and alignment of the PMMA workpiece is significant to manufacture high-accuracy parts. Special metrology tools, probes, for instance, are ideal solutions for this step.

Step 4. Then, the PMMA workpiece is ready for machining. The machine uses professional cutting tools and rotating the at high speeds to remove material from the workpiece. However, at the very first steps, the machine removes at a relatively low speed and accuracy to gain an approximate geometry.

Step 5. Sometimes, the model is not being to achieve full features by single setup from the cutting tools, then to flip the PMMA workpiece is necessary.

Frequently Asked Questions

1. How much does it cost to CNC machining PMMA parts?

Prices are based on the structure of the part, order volume, machining processes, etc. You can use our instant quoting engine to get price, or you can email hello@wenext.com for more information.

2. What is PMMA CNC machining?

PMMA CNC machining is the process of cutting and removing excess materials on the PMMA workpiece until the final object with desired geometries.

3. What kind of finishes are possible with PMMA CNC machining?

We provide various surface finishing options, including as machined, polishing, sandblasting, etc. Please check details Here.

4. What is PMMA?

PMMA (PolyMethyl-MetaAcrylate) is an amorphous thermoplastic material with very good optical properties. Acrylic is often used as a glass substitute. Acrylic is hard and stiff but brittle and notch sensitive.

5. Is PMMA tough?

PMMA belongs to engineering plastics, is a tough, durable and lightweight thermoplastic.