Choosing The Right CMM

In the world of metrology, precision is king. When it comes to ensuring the accuracy and reliability of measurements, your Coordinate Measuring Machine (CMM) plays a pivotal role. But with various types of CMM options available, how do you pick the perfect one? Don’t fret we’re ready to guide you through your journey to choose the right CMM for all your metrology needs.

Understanding Your Needs 

To start with, let’s get a clear picture of what you’re after:

• Measurement Objectives: What’s the primary purpose of your CMM? Is it mainly for inspections, reverse engineering, or another specific task?
• Part Size and Complexity: Are the parts you’ll be measuring mostly large or small? Do they tend to be simple or highly complex in design? Answering these questions will help you narrow down your choices.
• Accuracy Requirements: Are you aiming for pinpoint precision, or is there some room for flexibility in your measurements?
• Throughput: Is achieving high-speed measurements a top priority, or do you prefer a more methodical pace? If speed is crucial, there are high-throughput options to consider.
• Software and Automation: Are you interested in advanced software, or perhaps you’re toying with the idea of adding some robotic magic to the mix? Let’s chat about your tech wishes!
• Budget: What is your budget? Whilst a CMM is an investment, it should also align with your financial plan. Buying a used CMM might be a better move.

Types of CMMs

Now, let’s explore the different types of CMMs available, each with its unique strengths:

• Bridge CMM: These are the workhorses of metrology. Ideal for precision measurements, they consist of a bridge structure with a moving bridge and a stationary table.
• Gantry CMM: Designed for larger and heavier parts, gantry CMMs use a gantry-style structure to provide stability and accuracy.
• Portable Arm CMM: Highly portable and versatile, articulated arm CMMs use a flexible arm with joints to reach challenging measurement points.
• Comparator Gages – Not strictly a CMM, but ideal for high volume, smaller format, precision part measurement.

Key Features for Metrology

No matter which CMM type you choose, consider these key features:

• Accuracy and Repeatability: Precision is vital. Make sure it aligns with your accuracy standards.
• Measurement Range: Ensure that it can comfortably handle the size of your parts.
• Probe Options: Your CMM is a versatile toolkit to use, so make sure your CMM has the right probes (touch-trigger, scanning, laser) for all uses.
• Software Flexibility: Your CMM’s trusty sidekick is its software, make sure your CMM is compatible with the software you love to use.
• Speed and Throughput: Is it a sprint or a marathon? High-volume tasks may demand CMMs with turbocharged measurement capabilities.
• Temperature Compensation: Just like a cool cucumber on a hot day, your CMM should stay unphased by temperature fluctuations.
• Fixture and Part Accessibility: Easy loading and part positioning simplify your workflow and make measuring a breeze.

New V’s Used

Once you’ve made your CMM type selection and sorted out the accuracy and measuring range, it’s time to consider whether to go for a brand-new machine or to opt for a lovingly pre-owned one. This decision often hinges on your budget, and while those shiny, fresh-out-of-the-box CMM models are tempting, our Status line of used CMMs brings exceptional accuracy, reliability, and value to the stage.

At Status, we offer a wide variety of both manual and automatic machines, each meticulously refurbished to meet our exacting standards. Every CMM undergoes a thorough check-up, a rejuvenating makeover, and an upgrade to the latest metrology software (PC-DMIS) and equipment (including Hexagon RC Line controllers). This means our pre-owned CMMs boast the capabilities of their newer counterparts – all without breaking the bank!

Are you eager to discover the ideal CMM that fits your quality processes and needs like a glove? Our team of CMM experts are here to make your journey a breeze.

You can give us a ring at 0115 939 2228, or contact us here.