Digital twin — Offline simulation

Why sim­u­la­tion is so impor­tant for build­ing your qual­ity inspection?

Better through­put

First, when metrol­o­gists pro­gram offline inspec­tion tasks on com­plete sim­u­lated twins of their actual envi­ron­ment and equip­ment, the CMM or the robot are free to con­tinue mea­sur­ing and monitoring.

Improved effi­ciency

Second, when inspec­tion pro­grams have been sim­u­lated and vir­tu­ally tested, they are error and collision-​free once applied to the man­u­fac­tur­ing process.

Faster pro­gram­ming & results interpretation

Third, an offline sim­u­la­tion pro­gram like Silma X4 or Silma X4 i‑Robot can work directly with native or neu­tral CAD files and auto­mat­i­cally inter­pret GD&T.

Digital twin & simulation 1

Silma is a pow­er­ful and com­pelling offline pro­gram­ming 3D inspec­tion soft­ware ded­i­cated for part pro­gram­ming and full offline simulation.

Digital twin & simulation 2

Unparalleled Virtual Programming Software

Silma is the advanced offline pro­gram­ming 3D inspec­tion soft­ware ded­i­cated for part pro­gram­ming and full offline sim­u­la­tion. This com­plete offline solu­tion pro­vides the inte­gra­tion of all real-​world com­po­nents into the vir­tual world.

Silma con­sumes dig­i­tal data from engi­neer­ing allow­ing inspec­tion pro­grams to be cre­ated and val­i­dated even before the first part appears on the man­u­fac­tur­ing line. 

Currently, two ver­sions of the soft­ware are avail­able, both offer­ing sig­nif­i­cant advantages:

  • Silma X4 ded­i­cated for CMM offline pro­gram­ming and 3D mea­sure­ment simulation
  • Silma X4 i‑Robot, designed for mea­sur­ing robots directly on, or just beside the pro­duc­tion line.

Using Silma, you can:

  • Program all of your CMM using one soft­ware, inde­pen­dent of machine size, brand or configuration,
  • Simulate the mea­sure­ment work­flow and detect col­li­sions using a vir­tual CMM envi­ron­ment that exactly rep­re­sents your CMM, parts and fixtures,
  • Prepare your inspec­tion reports with­out using your online software,
  • Perform post inspec­tion analy­sis includ­ing report gen­er­a­tion, best-​fit analy­sis and addi­tional GD&T evaluations.

On the other side, Silma X4 i‑Robot, allows you to fully line up both mea­sur­ing and robotic equip­ment by pro­gram­ing accu­rately and with­out the risk of col­li­sions, prior to the pro­duc­tion cycles. It paves the way for auto­mated inspection.

Digital twin & simulation 3

Offline pro­gram­ming solu­tions that pay off

Silma is used to sim­u­late exist­ing mea­sure­ment pro­grams, as well as cre­at­ing new ones using the CAD file. All with­out machine down­time. No addi­tional know-​how is required; real­ity merges with vir­tual real­ity to cre­ate the impres­sion of sit­ting in front of a machine and enables drive fur­ther intel­li­gent action back into the phys­i­cal world. Silma sets the stan­dard for all other soft­ware to aspire to.

Digital twin & simulation 4

1/​ Definition phase

Silma X4 is a time saver as it takes over the cost-​intensive work cell and vir­tual envi­ron­ment def­i­n­i­tion: scan­ning, self-​centering, rotary tables, tool chang­ers can all be real­ized offline. Besides this, com­monly avail­able robots or CMMs, detailed probe heads, probes, styli and acces­sories from the exten­sive CMM library are right at your fin­ger­tips. We sup­port all com­monly avail­able brands: Wenzel, Zeiss, Leitz, Mitutoyo, Hexagon, API, Creaform, Faro, Kreon, Leica, Mora, Nikon, Renishaw and so many more… Still hav­ing a doubt? Then check with us!

2/​ Reduced part pro­gram­ming capacity

The vir­tual mea­sur­ing machine is even more con­ve­nient and quick to oper­ate thanks to smart algo­rithm that lies within the Inspection Path Planning (IPP) mod­ule. Instead of pro­gram­ming a whole mea­sure­ment routine- only a click-​away – Silma com­putes the best mea­sure­ment tra­jec­tory, with:

  • Automatic head orientation
  • Automatic obsta­cle avoidance
  • Optimized path, with min­i­mum cross­ing points — smart and fast,

inde­pen­dent of type of probe, be it touch or optical.

3/​ Offline programming 

Not only can you cre­ate and sim­u­late part pro­grams with Silma, but also it entirely val­i­dates and trou­bleshoots them using advanced prob­ing and mea­sure­ment rou­tines. Based on a programmer-​orientated and user-​friendly inter­face, part pro­gram proof­ing is fast and easy.


4/​ Part pro­gram validation 

Having doubts about part pro­gram val­i­da­tion? Do not worry any­more; pro­gram con­sis­tency is val­i­dated thanks to a gen­uine 3D inspec­tion and analy­sis engine. In addi­tion to col­li­sion detec­tion, auto­matic obsta­cle avoid­ance gives you the overview, and pos­si­bil­ity to opti­mize your entire prob­ing path.

5/​ Part pro­gram execution

You can send the pro­gram to the machine vir­tu­ally, error- and collision-free!

Support man­u­fac­tur­ing with sim­u­la­tion and dig­i­tal twins and wit­ness improved under­stand­ing of poten­tial bot­tle­necks, enhanced qual­ity con­trol and mea­sure­ment automation.

Digital twin & simulation 5
Digital twin & simulation 6


Silma includes a vir­tual library of more than 800 machines (DCC and Manual CMMs, Laser track­ers, chang­ers, rotary tables…), more than 100 robots and all the other needed acces­sories to repli­cate your real-​world envi­ron­ment, account­ing for 2650 objects.

Digital twin & simulation 7


The soft­ware pro­vides faster cycle times, deliv­ers the user action­able data. What makes Silma so dif­fer­ent from con­ven­tional com­peti­tor soft­ware lies within its added-​value capa­bil­i­ties. Silma is based on years of pro­gram­ming expe­ri­ence and fol­lows the lat­est stan­dards to guar­anty con­sis­tency and coher­ence in your part pro­gram cre­ations – fast, smart and reliable.

Digital twin & simulation 8


Rely on sim­u­la­tion to take your 3D mea­sure­ment to the next level thanks to advanced col­li­sion detec­tion and auto­matic avoid­ance capa­bil­i­ties. Silma allows the opti­miza­tion of mea­sure­ment strate­gies, sen­sor con­fig­u­ra­tions and clamp­ing con­fig­u­ra­tions, and con­tributes con­sid­er­ably to reduc­ing pro­gram­ming times. 



Updated Thursday April 9th, 2020


In these times of change, we need to be proactive and adapt to a world that will be different.  Not only does this apply to us as a technological company but most importantly to our customers who will grow different set of expectations. More than ever, time has come to step up to evolving market demands: we are committed to implementing radical changes to support our end-users. Starting today.


Updated Tuesday March 17th, 2020


At Metrologic Group, safety is our number one priority. We are committed to providing you with the best possible customer experience while protecting our staff. As of Tuesday March 17th noon France is in partial lockdown and we will be applying government mandatory measures.  All of our team is able to operate and work remotely in secured locations.

Preventing the further spread of COVID-19 is a shared responsibility for us all.

We are monitoring and enforcing all guidelines set out by local governments in the countries in which we operate, whether related to local requirements, general hygiene or to travel restrictions.

During this time, we are doing our best to maintain 100% of our technical support services by phone, email or remote assistance.  If you have any technical problems using our solution or need simple assistance, you can contact us normally through the usual channels and locally available phone numbers:


  • • Technical Support: hotline [at]  (replace [at] by @)
  • • Find and contact your local support
  • • Technical Support for France Hotline Direct Access Number: +33-476-043-033
  • • Or locate your nearest Subsidiary/resseller for local support.
  • • General or Commercial Inquiries: +33-476-043-030
  • • Extranet Link


Trainings, on-site assistance and business trips are cancelled until further notice.

However, our team of experts is available to perform virtual/remote training to support your needs:  contact your local focal to learn more on how we have adpated to the situation to keep providing training on our full range of software solutions.

We will continue to keep you informed as we go along and we invite you to regularly consult this page for the latest information.


Thank you and stay safe,

The Metrologic Group Team

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