Opinions on the "Best" CMM for High Accuracy Machining

Satellite

Involved In Discussions
#1
I'm looking for opinions on the "best" CMM for high accuracy machining. I have features with tolerances of .010mm to as small as .005mm. GD&T, complex geometry, medium size 140mm long x 75mm diameter to small 6mm long x 2.5mm diameter.

I have a controlled and fairly stable 24 hr temperature - not HVLP. We do have established soak times.

There is a company preference for one brand but we have problems finding programmers. I'm looking for other options. I'm looking for a .5m cube measuring envelope.
 
Elsmar Forum Sponsor

Ninja

Looking for Reality
Trusted Information Resource
#2
I've seen both MicroVu and OGP work well in that range.

I have a preference toward MicroVu for ease of programming and automation of repetitive tasks.

Lots of systems out there...these are the two I've played with...HTH
 

normzone

Trusted Information Resource
#3
There is a company preference for one brand but we have problems finding programmers. I'm looking for other options. I'm looking for a .5m cube measuring envelope.
I had a very negative experience with the last CMM I was involved with - no technical support and very little training available from the distributor, and no user manual so you could go it alone.

I would be very cautious going into a relationship with a CMM supplier again - once they have your money you may be left on your own. This could be a contributing factor to your difficulty finding persons knowledgeable with the machine.
 

Eredhel

Quality Manager
#4
We use two Zeiss CMM's with Calypso software. Both are scanning heads with rotating heads. You can do a ton with them. Calypso is also an incredibly nice approach to CMM programming. If PC-Dimus is G-Code/M-Code programming then Calypso is Conversational programming (sort of). As far as tolerances, you can run CMMs like ours to check millionths and tighter. But the room you check it in will cost more than the machine you buy. It's all about temperature control at that point, walking up to the machine can change results due to operator body temperature. These CMMs would be plenty.

If you would like good training and great sales support let me know. We purchase from a supplier that gets it done well. I can also answer more questions if you have them, I've learned a ton recently :).

Edit: I nearly forgot. One super handy approach. Find out what your customers and suppliers are using. Some will share CMM programs with you, not all obviously, and it helps to use the same programming software. Plus it's added guidance on research.
 

Miner

Forum Moderator
Staff member
Admin
#5
It's been a long time since I've worked with CMMs, but at those tolerances, you will also want to look closely at your styli (e.g., ball diameter, stem length, ball and stem material, etc.), lobing error and cosine errors.
 

Ninja

Looking for Reality
Trusted Information Resource
#6
Find out what your customers and suppliers are using. Some will share CMM programs with you, not all obviously, and it helps to use the same programming software. Plus it's added guidance on research.
Totally good call !

This can also make future PPAP's with the customer go smoothly as well.

When the customer engineer tells his own QC guy "that's the exact same way we do it"...it shuts off a lot of avenues of debate.
 

oldmanian

Starting to get Involved
#7
Having just been through the purchase of a new CMM we looked at all the brands available in Australia. Zeiss was by far the most accurate with a price to match, Mitutoyo and Sheffield also have good machines. The decision came down to the dollars available and it was decided to go with a Perceptron machine from COORD 3 in Turin. This machine will do all we need in our inspection processes.
We also are trialling the software PAS CMM which is a CMM programming software and this will help us very well in preparing the programmes. So far it has worked well but we are still a long way from being totally on top of it.
Temperature control is as you said important so best of luck with your decision.
 

Kingsld1

Involved In Discussions
#8
All the major CMM OEM's make equipment in the size and accuracy you need.
It seems the real problem is finding someone who can do the measurements.

Maybe flip things around and look for your measurement guy first.

All the high tech inspection equipment in the world is worse than useless in the wrong hands.
 

chandaraasekar

Starting to get Involved
#9
We use Zeiss-1X1 m with calypso , Renishaw Equator , Faro 1M Free arm CMM all these 3 can work with SATELLITE's range of measurements.
The real challenge is application of the software by the CMM-operator.

I would recommend , you first find a CMM operator then search a machine that you need to buy.
 
#10
I have been programming and running CMM's for over 15 years. I haven't run a lot of brands, mostly Zeiss. B&S and Mit too. Hands down I prefer Zeiss, And within Zeiss's stable of machines the Micura is just incredible ! At 500 X 500 X 500, it is not a very large machine but, it's a .7 micron machine. from 0.7 + L/400 μm to be exact ! We are a precision grinding shop servicing a variety of customers in a wide variety of industries. Up until now a CMM for our shop was usually considered " not accurate enough" to meet our needs. The Micura is tighter than we imagined. It calibrates at roughly 1/2 the guaranteed .7 microns. Repeatability is beyond words. We have a temp probe that checks the actual temp of the part and applies the COE of the material to adjust the size to 68 degrees . At approx $150,000 it's not super expensive and in my opinion worth every penny. We purchased a second machine 6 months after the first one.

And NO, I don't work for Zeiss
 
Thread starter Similar threads Forum Replies Date
I What kind of wine best complements the Friday that you close out your external audit findings? Opinions are welcome. Coffee Break and Water Cooler Discussions 12
B Opinions on the best conference to go to in terms of ISO 14001 coverage ISO 14001:2015 Specific Discussions 7
J Reportable Event for a Medical Device? Opinions welcomed. 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 3
J Any diverging opinions regarding audit findings or conclusions must be resolved no later than the closing meeting ISO 13485:2016 - Medical Device Quality Management Systems 13
Marc January 2018 - Forum Software Opinions Forum News and General Information 5
Q No Financial Management (ISO 9001:2015) - Your Opinions ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
J CFDA issues Guiding Opinions on Enhancing the Construction of Food and Drug Inspectio China Medical Device Regulations 1
S Service Parts PPAP AIAG Manual - Opinions APQP and PPAP 4
Chennaiite Cause Analysis for Verification/Validation Failures - Seeking Opinions Problem Solving, Root Cause Fault and Failure Analysis 3
P Salary Increment (Opinions Requested) Career and Occupation Discussions 1
W Severity Rating CORRECTIVE ACTIONS - Opinions Wanted Please Nonconformance and Corrective Action 15
N Do I Need to Write a CAR for..... (All Opinions Wanted :) ) ISO 13485:2016 - Medical Device Quality Management Systems 7
T Process Change in a Laboratory - Start Date for new Procedure - Management Opinions Misc. Quality Assurance and Business Systems Related Topics 4
8 Looking for opinions concerning the re-start up of a 5s Program Lean in Manufacturing and Service Industries 22
D SPC Software that will satisfy auto/furniture data submissions - Opinions wanted Quality Assurance and Compliance Software Tools and Solutions 5
Marc Thoughts and Opinions about the ASQ (American Society for Quality) ASQ, ANAB, UKAS, IAF, IRCA, Exemplar Global and Related Organizations 34
G A2LA's ISO/IEC 17025 and Accreditation Training - Opinions from previous attendees ISO 17025 related Discussions 2
A Wolfram Mathematica 8 - Review or Opinions Please Quality Tools, Improvement and Analysis 1
Z Key Performance Indicators (KPI) for QMS Department Advice and Opinions IATF 16949 - Automotive Quality Systems Standard 2
S OPRP or HACCP Plan - Opinions and Practical Example Wanted Food Safety - ISO 22000, HACCP (21 CFR 120) 17
M Putting First Pieces with Masters - Need opinions Inspection, Prints (Drawings), Testing, Sampling and Related Topics 3
J NoiseKen ESD Simulators - Opinions on ESD simulator ESS-2002EX Inspection, Prints (Drawings), Testing, Sampling and Related Topics 1
harrysons Product Audit Checklist - Please give some advice or share your opinions Software Quality Assurance 8
V Opinions of those who have used/read David Hoyle's ISO 9000 Handbook Book, Video, Blog and Web Site Reviews and Recommendations 2
F Document Control For Dummies - Need opinions Document Control Systems, Procedures, Forms and Templates 5
J Used Parts in Medical Devices - Opinions on Servicing and Repair 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 1
J Lean Six Sigma and the Environmental Benefits / trades off - your opinions please Lean in Manufacturing and Service Industries 9
A How to treat large Manufacturing Equipment providers - Opinions and comments wanted Supplier Quality Assurance and other Supplier Issues 5
H Opinions on and finding a Thread Sensor General Measurement Device and Calibration Topics 1
K CAR for Re-certification audit and your opinions IATF 16949 - Automotive Quality Systems Standard 1
Marc Your Opinions and thoughts about the Elsmar Cove forum - Why do you visit the forum? Forum News and General Information 50
B Opinions on Zone Alarm Internet Security Suite After Work and Weekend Discussion Topics 2
B ETQ Quality & Compliance Software - Opinions or Reviews wanted Quality Assurance and Compliance Software Tools and Solutions 35
C Need opinions to make decision on New Job position Career and Occupation Discussions 18
S Basic questions about FMEA - Opinions please FMEA and Control Plans 7
A Quality Policy - Please let me know your opinions and comments ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 11
Crusader Design Activities Schedule - ISO 9001 Audit Nonconformance 7.3 - Opinions? Design and Development of Products and Processes 21
K TS Section 7.6.3.1 - In-House Testing - Opinions Please IATF 16949 - Automotive Quality Systems Standard 5
T Opinions regarding the ASQ Certified Calibration Technician (CCT) General Measurement Device and Calibration Topics 5
ScottK New "Family" car or used "Upscale" car - Opinions wanted Coffee Break and Water Cooler Discussions 26
Crusader Playstation 3 - $$ Cost - Thoughts - Opinions - Evaluations? Coffee Break and Water Cooler Discussions 89
C Online Customer Survey - Opinions/feedback on the survey I have created Misc. Quality Assurance and Business Systems Related Topics 9
B ISO Management Systems Magazine - Opinions Please Book, Video, Blog and Web Site Reviews and Recommendations 3
C Needing a way to monitor environmental laws - Opinions on RegScan? Miscellaneous Environmental Standards and EMS Related Discussions 10
H Process Mapping - I would like your opinions and advice on my process map Process Maps, Process Mapping and Turtle Diagrams 12
K Gage Life and Calibration Management Software - Seeking Opinions / Reviews General Measurement Device and Calibration Topics 5
R PCDMIS CMM Software from Brown and Sharpe - Your opinions? Inspection, Prints (Drawings), Testing, Sampling and Related Topics 1
K Digital vs. Analog Megohmmeter - Analog vs. DMM - Seeking Reviews / Opinions ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 6
C Quality Policy: Opinions Please ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 22
G Please Review our Customer Survey and help with your opinions and suggestions Document Control Systems, Procedures, Forms and Templates 7

Similar threads

Top Bottom