Large Format Scanning | Small Format Scanning | Large and Small Scanning


CAD/CAM Services, Inc. uses the latest in large format scanners. These allow the scanning of up to 56″ wide media, with 54″ wide image width. We can scan up to 2,400 dpi and support both 256 gray scale (often used in Aerial Photography), and 42-bit high speed color, with a thickness of up to .5″.Our scanners directly support most any raster file format. Including all flavors of *.tiff, *.jpg, *.PDF, and most others.

Typically the CAD files we provide include: AutoCAD .DWG, Intergraph .DGN, ERSI’s ArcInfo .001 coverage files. Raster scans might include .TIF (any flavor), CALS .GP4, .BMP, .PCX, and .JPEG for color and gray scale.

Small Format Scanner

CAD/CAM Services, Inc. uses Scan Optics for our small format scanning. These $200,000 scanners are the largest, fastest, most accurate scanners on the market today. They provide the speed and turnaround our clients demand, with the highest image quality possible.

The most common raster files are compressed *.tiff group 4. Proper indexing is always our largest concern for this type of scanning. We have extensive experience with Interactive Electronic Technical Manuals (IETM) and other such complex file systems and formats.

VRS – In 1998 Kofax introduced one of the industries’ best image enhancement tools we have seen to date. VRS technically scans an image in gray scale and automatically processes this for its image quality. VRS is smart enough to strip out dark and color backgrounds and still leave the text intact, producing a standard bitonal *.tiff gp4 image. You will only see this significant technology in the ‘better’ production scanners today. All of our paper scanners now support this technique.

The most common raster files are compressed *.Tiff group 4. Proper indexing is always our largest concern for this type of scanning.

Microfiche & Microfilm

Mekal produces some of the finest film scanners available. We use these and they support: 16 mm, 35 mm, and microfiche. They support 200 or 400 dpi and both black/white and gray scale.

Aperture Cards

We use both the high end Photo Matrix and Ideal/Contex aperture card scanners. These support 100-400 dpi scanning in both black/white and gray scale. We scan in excess of 250,000 cards per year.

Scanning Services

CAD/CAM SERVICES comes from a different perspective than most scanning firms. Because so much of our business involves CAD Conversion, we have to be able to see the images at their maximum potential. If we can’t see the image, we can’t convert it. Simply put, this is why we are forced to buy the best scanners on the market today. We simply can’t afford anything less than perfect image quality for our scanning and conversion clients.

It is not uncommon in our large format scanning to scan the same large format engineering drawing 4-8 times!

On bulk film scanning projects we work with you to determine how much Q/C is needed. Do you wish us to individually Q/C each and every image – or maybe every 3-5 images would be sufficient?

Some comments on Bitonal -vs- Gray Scale

This can be a tough question. Samples are the only way to truly answer this. Here are some factors to consider: 1) How good is good? 2) Gray scale will almost always look more like the original image. 3) Your human eye sees in color and Gray Scale, and your eye is better suited to ‘take out’ unneeded information. 4) Not all high speed scanners can scan gray scale. 5) Gray scale scanning is 2-3 times slower to scan, and therefore more expensive. 6) The image size for Gray scale is 2-3x larger.

How do we scan for our own work? Generally for full size engineering drawings for raster-to-vector (also known as r 2 v, r to v, r2v) work we almost exclusively use Gray scale scanning at 300 dpi. Each project often uses different techniques and software conversion products and methodology for each document type. That is why we use software from Consistent Software (Wise Image), GTX (RasterCAD), Softelec (VP Studio), Hitachi (Tracer) and our own custom written and developed software. I.e.: Large format and aperture cards are often used in R/V projects, where film is often used only for archival.

Image prep

This is often a very misunderstood concept. Somebody – whether it be your company or our firm – will need to often ‘prep’ your documents to get them ready to scan. For example somebody will need to remove staples, unfold any sheets, possibly reorder them, and many other conditions. Think of it this way, when scanning small format paper, somebody must prepare the documents just as if you where going to run them through your document feeder at your copy machine. Which leads us to our next step indexing.


How are you going to find the images after they are scanned? Maybe in engineering drawings the drawing number in the title block is sufficient? Don’t skimp here. Pay a little more upfront and get them ‘over indexed’. Why does a person put all that information in a title block? Why are drawings stored separate folders? It is there for a reason.

CAD/CAM Services can even go into each image and manually pull out any piece of information required. This data is often delivered in some type of database (often Microsoft Access), and imported directly into a document management system.

Document Destruction

Your secure documents can be professional destroyed with our production shredding equipment. All documents are cross shredded to insure complete destruction. We use the Federal Governments method for complete and secure document destruction.

Scanned images can be delivered via FTP, CD, 8 mm tape, and Zip drives.

The Advantages and Uses of BIM for Manufacturing


The Advantages and Uses of BIM for Manufacturing

Just as architects and designers embraced Building Information Modeling (BIM) in the early part of the 21stcentury, nearly 20 years later, BIM for manufacturing has become equally important. At first glance, it may be difficult to see how BIM, typically used in the construction space, can apply to manufacturing. Indeed, it is the very ubiquity of BIM in construction that requires any company that manufactures products used in construction to use BIM.

For instance, any manufacturer of plumbing products, HVAC, electrical components, home appliances, light fixtures, doors, windows, railings, and other items used to build and design homes, office buildings, stadiums, and other architectural constructs, who is able to offer BIM-ready content will outshine the manufacturers who don’t have that ability.

Construction companies, building owners and contractors want to work with suppliers that make their own BIM requirements as seamless as possible. By providing BIM ready data for the products you manufacture, your chances of having your products specified for projects increases substantially. Moreover, BIM is rapidly becoming a requirement, not just something that can make you preferred provider, so it’s important to ensure that you create and supply the correct content to maintain the potential to supply BIM-based projects.

It’s important to note that 2016 is the end of a 5-year plan by the Federal Government to mandate BIM for all government-related construction. Even if you do not participate in government projects, this government mandate is sure to affect commercial construction as well.

BIM Requirements and Benefits

As BIM becomes more widely necessary in manufacturing, it’s important to note that the types of product information required will depend on the types of product (building services, furniture, windows, etc.) but the same key benefits for manufacturers will apply:

  • Fewer queries from designers
  • Differentiation of products/supplier
  • Product preference at design time, during specification and during construction
  • Increased maintenance/spare part sales

The key factor that manufacturers should understand is that eventually the provision of building product BIM information will become a requirement, so they should prepare now.

Transitioning to BIM in Manufacturing

When you are ready to make the move to BIM, start by identifying the product lines that need BIM enabled models. Then, begin to generate content with all the necessary BIM object information like part numbers and descriptions, available materials and finishes, performance criteria, electrical requirements, LEED certification, code compliance, etc. Finally decide how you will deliver 3D BIM enabled models in a format that the builders, designers and contractors you supply can use.

BIM has many advantages over traditional CAD design methods and represents a completely different approach to building design, documentation and manufacturing.  Because 3D CAD automates the traditional design process, your will also need to generate CAD drawings are created as stand-alone documents. Manufacturing design changes in the 3D BIM model, also need to be applied to each CAD drawing.


Get more information BIM for manufacturing

Who Uses 3D Scanning? 


Who Uses 3D Scanning? 

Quite simply…anyone who needs a faster, easier way to make…well, ANYTHING!  As long as you have something physical to start with that can be scanned, and there are virtually no limitations as to size, location, or position, as long as you have the right scanner for the job.

Here are some examples:

          • Hollywood movie makers and video game animators regularly use 3D scanning and 3D printing for characters and special effects.
          • Hospitals and dental labs use these types scanning devices to create digital models body parts and teeth in order to make perfectly fitting prosthetics and dentures.
          • Museums and galleries use 3D scanners to make replicas of everything from artifacts and statures to dinosaurs.
          • Architects and Designers can avoid spatial conflicts when remodeling anything from factories and schools to houses and bridges by using a laser scanner to scan and plot the existing construction, then creating a Building Information Model (BIM) to remodel virtually.
          • Aerospace engineers can scan anything from large wing pieces to small bolts in order to retrofit parts or improve future designs
          • Automobile customizers use 3D scanning to scan the existing part of a car that they want to customize, ensuring that the customization piece will fit seamlessly.
          • Jeff Dunham, ventriloquist, uses 3D scanning and printing to create custom “talking” hot rod, according to an article posted on www.3Dwrs.org.
          • Hobbyists of all types use small, inexpensive “hobby” 3D scanners to make everything from tea cups to robots.
          • Surveyors use 3D scanning to monitor coastal erosion, slope deterioration, buildings, bridges, power stations, refineries, dams, railway infrastructure, topography and more, depending upon what they’re surveying. If it’s solid…they can scan it.
          • Forensics analysts, whether they are recreating a crime scene or a crash site, 3D scanning helps them determine what happened.

With so many different uses for 3D scanning, it’s not surprising that there are different types of 3D scanners:

Laser scanners

Laser scanners can be hand-held or mounted and can make use of one or more these technologies:  triangulation, time of flight and phase shift.  Through “laser triangulation,” laser scanners calculate the exact shape and size of an object. “Time of flight” is based on the laser light impulse which is sent by a scanner to the scanned object. The distance to the scanned object is calculated according to the time that elapses from the moment of sending the laser light until it is captured by a special sensor in the scanner.  “Phase based scanning” utilizes a constant beam of laser energy that is emitted from the scanner.  The scanner then measures the phase shift of the returning laser energy to calculate distances.

Regardless of the method, the scanner creates a point cloud on the object, and the 3D laser scanner reconstructs the shape of the object. The colors of the object’s surface can even be determined if color data is also collected. 3D scanners function similar to the way cameras function. However, cameras only capture the X and Y axis, while 3D scanners are able to calculate the Z-axis (distance information) relating to the object as well.  They then produce a high quality, 3D image of the object.

3D White Light Scanners

3D White Light Scanners, also known as structured light scanners use a “white light” source such as halogen or LEDs to project a pattern (like a blanket) of pixels that deforms when it strikes the target surface. A 3D reconstruction of the object is created from measurements based on the deformations of the light pattern. Their operation is based on visible light technology and sensors (mostly CCD cameras). Such cameras make possible to obtain the high precision data used for creating the digital 3d model.  The scanners of this type are often equipped with several sensitive elements.

One of the advantages of white light scanners over laser scanners is that the light emission used for digitizing the object is harmless to the human eye, while laser light can harm human eyes, and care must be taken when using a laser scanner.

Photogrammetric scanners

Photogrammetric scanners are older technology and photogrammetry has been around as long as modern photography.  It’s primary use is in mapping and topography.  By comparing multiple photographs, these scanners enable the recovery of the exact positions of surface points, as well as . motion pathways of designated reference points located on any moving object, on its components and in the immediately adjacent environment.  Photogrammetry may employ also use high-speed imaging and remote sensing in order to detect, measure and record complex 2-D and 3-D axis.

By utilizing multiple images of the object the photogrammetry software detects the common points to form a 3D model.

Coordinate-measuring machines (CMMs)

Coordinate measuring machines (CMM) are devices used for measuring the physical geometrical characteristics of an object. Initially these machines consisted of manual probes that were either  manually controlled by an operator or they could be computer controlled. Measurements are defined by a probe attached to the third moving axis of this machine.  Today’s probes may be mechanical, optical, laser, or white light.

Unlike other forms of 3D scanning that are “non-contact” CCMs must touch the scanned object in order to obtain the data about its geometry.  Moreover, this technology is not nearly as accurate as laser an white light scanners.


How We Build 3D CAD Parts Libraries


How We Build 3D CAD Parts Libraries

We have a client who is a vendor of parts – all kinds of parts – bolts, nuts, screws, fasteners, pipes, fittings. In fact, they have over 150,000 parts drawings that they needed to convert into 3D models in order to make them available over the Internet.

We have other clients who manufacture metal booths, chassis and furniture.  At one time or another all of these clients have had one thing in common:  the need for a vast 3D CAD parts library, based on ANSI standards and compiled from an array of dimensions, parameters and specifications.

Additionally, none of these vendors and manufacturers had the in-house personnel available to spend hours, days, or in some cases months creating 3D models.  Moreover, the projects were made more complex because the data for the 3D models came from a variety of sources:

  • Excel tables and various databases, containing lists of parameters and configurations of required parts
  • 2D vector and raster drawings
  • Legacy CAD 3D models and databases

Each of the clients was aware of the importance of the part libraries:

  • The models are rich media assets
  • They can be published on the clients’ website’s for their customers to use in their own engineering and construction projects
  • Being able to save their customers time and resources on creating the models themselves is a huge marketing advantage
  • The models and files can be downloaded and directly placed in our clients’ customers’ designs
  • The model can be used in engineering, structure building, BIM and other types of projects for faster prototyping
  • It’s easier to choose suitable fasteners
  • It’s easier to do various simulations and physical calculations.

The final thing that all of these clients have in common is that we produced 3D CAD Model Libraries for each of them that contain all the required parts in multiple CAD formats. This means we have converted thousands upon thousands of parts into precise solid body 3D model for all major CAD systems.  See the accuracy we maintain in the images below.







Do you need a 3D CAD Parts Library?  Get more information now.

Capture Your Object with 3D Scanning


Capture Your Object with 3D Scanning

Just a few years ago, 3D scanning was described as a “growing method of measurement and image access.”  Today, 3D scanning has come of age! There are many types of scanning devices for a broad range of applications:

  • Manufacturing companies use 3D scanning for everything from reverse engineering, first article inspection, quality control inspection, and object analysis to creation of documentation.
  • The AEC marketing makes use of 3D scanning to create “as-built” models or to duplicate intricate architectural designs.
  • Artists use 3D scanning to recreate three dimensional objects of all kinds.
  • Scientists, archeologists and historians use 3D scanning to duplicate and recreate objects from fossils, shards and other unearthed objects.

This process of converting physical objects into precise digital models, enables quick and accurate capture of an object’s shape and geometries, providing a complete digital representation of the object.  The digital representation can be used for:

  • Reverse engineering, quality inspection or at any point of a typical manufacturing cycle
  • Duplication of the inside and outside of a building
  • Development of complex, artistic designs, artificial limbs,
  • Scientific and historical studies

Purchase, Lease or Outsource 3D Scanning?

Cost: When you need 3D scanning, cost plays a big part in your decision to purchase, lease or outsource.  Of course, cost is often more than just how much you pay for the equipment.  There’s also the cost of your employees’ time to learn how to use the equipment, and then to perform the 3D scanning for your project.  Consider, also, the cost of the time required to manipulate the file once the scanning is completed.

Do you have the internal expertise and the time to take the job to its completion?  Are you measuring, inspecting, modeling, reverse engineering?  What’s the result you desire,  and are you able to do it in-house without taking resources from other important projects?

Volume of Work: Is this a one-off project?  Or will you be doing a lot of 3D scanning in the future?

One-off projects are probably better off outsourced.  However, even if you think this project will lead to other similar projects, sometimes it’s best to outsource in the beginning until you build up sufficient 3D scanning volume to warrant an investment in equipment and resources.  Renting equipment may be a good intermediate step.

While the cost of using a 3D scanning service outsource seems to add-up if you have many projects, oftentimes using an outsource is less expensive — when you consider the cost and maintenance of equipment plus employee salaries and benefits packages.  This is especially true if you’re building an entirely new service in your company.  An outsourced 3D scanning department can be a real cost-saver.

Flexibility: While having 3D scanning in-house lets you use the scanner whenever you need it, partnering with an outsource service can give you nearly the same amount of flexibility, with none of the hassle.  Parts and objects to be scanned can be shipped directly to the scanning site.  This way, the outsource service becomes an extension of your company.   In fact, many of our customers use our services exactly like this.  They have 24/7 access to our services and technicians, oftentimes getting the jobs done more seamlessly and quickly than if they did them in-house.

Quality Control: While it may seem as though quality control may be harder to maintain with outsourced projects; a little bit of due diligence goes a long way.  Use the same care in searching for a 3D scanning outsource as you would if you were hiring an in-house employee.

Use an established outsource firm who has a proven track record.  Ensure that your scanned data will be secured and maintained appropriately.  If you use a service bureau that is approved for DOD work you can be assured that proper procedures are in place.


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CAD Conversion Puts New Life in Old Drawings


CAD Conversion Puts New Life in Old Drawings

Engineering documentation — that pile of paper drawings that we love to hate. We’d really like to clean out our files, but we’re equally afraid we might need something that’s there.  Our younger engineering brothers and sisters, who cut their milk teeth on digital toys, think we’re an anachronism.

“Let them laugh,” we say. “The day will come when they’ll need one of those drawings.”  (My wife says the same thing about all the shoes in her closet (but that’s another story.)

So, am I clinging to a dusty memory?  Or is there some validity to my way of thinking?  Can we really put new life into our old drawings?

Lowest Common Denominator and Long Lifecycle Products

One reason why we seasoned engineers cling to our drawings is that you can go anywhere with a drawing; you can derive all the information that you need from a drawing.  Traditional drawings are a lowest common denominator, universally accessible, so we continue to hang onto them. This is particularly true for drawings used to design, develop and equip products with long lifecycles:  air craft, factory machinery, heavy equipment, and the like.

Take aircraft as an example…

These long lifecycle purchases represent a 20 to 30-year commitment that begins with the acquisition of an airplane and continues throughout its operation, mainte­nance, and modification, and doesn’t end until the airplane is eventually transitioned out of service.  This lengthy commitment means that the manufacturer must maintain documentation and drawings in order to provide long-term customer support, including: (1) operational performance; (2) updates; (3) enhancements; and, (4) repairs

The Engineering Documentation Quandary

While the time of 2D drawings has come and gone, some industries are forced to retain them. They represent the heart of a design era when we distilled our 3D reality onto sheets of paper with representations of dimensioning and orthography. Yet today, so much has changed¦

We design in 3D.  We see our designs with a virtual reality that looks nearly identical to what we see in real life.  Product Manufacturing Information (PMI), 3D Modeling and Simulation have made paper drawings lifeless representations of design — ¦EXCEPT when we need a part for a 20 year old plane or machine.

If you find yourself reaching for some of those old drawings more often as products age, then it’s a worthwhile exercise to recreate those most frequently used 2D drawings in 3D.  It’ll save you time going forward.  By converting 2D drawings to 3D CAD, you can use them over and over, ensuring that the parts fit correctly, making modifications quickly and calculating accurate assembly mass properties.  Since most CNC routers today accept 3D information, the machine shop will appreciate your conversion as well.

If you don’t want to take the time to convert the drawings yourself, there are many bureaus that offer 2D-to-3D model conversion.

Have an Archiving Plan

Beyond the one-off conversion of drawings as needed, consider your overall plan for archival or abandonment of the filed data.  Any firm who continues to store needed drawings in paper format is courting disaster.  A better recommendation is to have the drawings scanned by a service bureau and archived as TIFF or PDF files.  They can be stored in the Cloud, accessible as needed.  Cloud storage is relatively inexpensive these days.

Once scanned and stored, it’s relatively easy to bring the archived 2D CAD data forward to modern standards, whether it’s today’s 3D modeling or tomorrow’s as yet unknown technologies.


Request a 2D to 3D Cad Conversion Quote

Benefits of Virtual Simulation for Engineering Managers


Benefits of Virtual Simulation for Engineering Managers

Success can be measured by many standards.  In product engineering, manufacturing and production, success is often measured by three standards: (1) profitability; (2) competitiveness; and, (3) design.  It’s no accident that I listed them in this order.  Regardless of a product’s design and its ability to compete in the market, if the company manufacturing it doesn’t make a profit, the product cannot be considered a success.

Agile, responsive design and assembly methods and strategies continue to emerge, but perhaps one of the best ways for a manufacturer to meet three core goals listed above is with virtual simulation.  Assembly simulation, planning and assessment in a CAD model based virtual environment (VE) identifies potential problems without the use of physical mockups or prototypes.  This process shortens the design cycle, improves product quality, and ensures that the product can be manufactured with cost-effective materials to improve profitability.

Simulation Software

Simulation software isn’t a one-size-fits-all, and nearly (if not all) 3D CAE packages have some form of simulation included.  One package may fit one company’s needs better, while a different package may be more applicable to a second company.   It’s important to understand what those differences are and what simulation software can do to positively change the way your design process operates.

Types simulation that may be required include:

You may need simulation solutions for linear and nonlinear static, frequency, buckling, thermal, fatigue, pressure vessel, drop test, linear and nonlinear dynamic, motion, and optimization analyses.

Simulation software can be useful – if you know what you’re doing.  However, these 3D CAE tools have not been traditionally easy to use. In fact, experts and analysts are often used to ensure that the information going into the tool will create accurate and meaningful results. Unfortunately, these simulation gurus are often overworked as all the hard simulation work falls upon their desks.

Recent trends in the simulation industry are allowing for the democratization of CAE technology. Tools like simulation apps, templates, fit-for-purpose simulation tools and simulation in CAD are making it easier for non-simulation experts to be capable when using the technology. Additionally, CAE vendors have also been busy updating their UIs to accommodate ease of use.

These changes to the CAE world have alleviated much of the load on simulation analysts and allowed them to share their expertise with a wider audience. There are, however, benefits and drawbacks to each democratized CAE option that will affect which option management chooses to implement.

Moreover, there are Simulation Service Providers who can streamline the process for you by performing simulations while your engineers continue working on the design.  They’ll let the engineers know what changes need to be performed, and the engineers can incorporate those changes as they continue to design.

Even if you do hire a Simulation Service Provider, you will need to have trained members on your in-house team who know how simulation tools work and how to use and interpret them properly. This is especially true if these engineers will be basing decisions on the simulation results or using the software directly.

Handling simulation tools properly, whether in-house or through an service provider give the engineer the ability to create products that are highly optimized to the product’s use, without worrying about how it will be produced. In theory, this should make products that are that are (1) profitable; (2) competitive; and, (3) well designed.

Engineering Stimulation Service

AutoCAD drawings into BIM models


By converting AutoCAD (Computer Aided Drafting) drawings into BIM (Building Information Modelling) you bring the structures you design into a level of three-dimensional relief on the computer screen that CAD systems cannot match. In many cases, designers and engineers find it beneficial to convert preliminary CAD drawings into BIM models once plans advance.

Although modern CAD software can produce 3-D models of designs, CAD software originated as a generator of 2-D plans. The capacity of the CAD system to hold comprehensive information about structure, material conflicts and details necessary for automating construction scheduling and costing is limited. CAD systems do not automatically update designer changes throughout the design. Developing a three-dimensional model using a CAD system is much more difficult and time-consuming than it is in a BIM system. The 3-D CAD plan does not allow team members to work simultaneously on a “live” model. The finished 3-D CAD model can’t really help the facility managers or owners in operating the building facilities after construction is complete.

On the other hand, the BIM system allows developers to integrate mechanical, electrical, and plumbing contributions into a live model. The BIM coordination system helps clash detectors identify points of interference among architectural, structural, mechanical, HVAC, electrical and plumbing engineering parts of the design. The BIM model contains all the information that assists professional contributors to understand the entire construction design and workflow. BIM models are regarding as lasting full recordings of structure. In the post construction stage, the BIM model can be useful in running the finished facility.

BIM models of smaller objects have been increasingly applied to manufacturing through 3-D printing technology, especially in making models and prototypes. In many cases, the BIM file can be directly loaded into the 3-D printer.

In most cases, the raw conversion of .cad files into .bim files is straightforward, since typical BIM software allows for importing CAD files.  However, the filling out of the CAD drawing to make it into a fully functional BIM model does require considerable attention.

Cad / Cam Services has the expertise to help you with any digitization and digital graphics conversion problem. Please contact us.

R2v conversion discount for autocad users

7 Tips for R2V Image Conversion


7 Tips for R2V Image Conversion

Most of the time, the raster images that customers send us for conversion are images that they’ve scanned from original mylar or paper drawings. When we get an image like this, the first thing we look at is the quality of the raster image. That’s because if we start with a good quality scanned image, the process of doing the conversion goes much more smoothly. Even when we have poor quality images, we’re usually able to do an accurate conversion, it just takes a lot more redrawing and can become more expensive.

If you’re attempting an r2v conversionyourself, it’s good to keep in mind the quality of the raster image you start with. Good results with the raster to vector conversion process are much more likely, whether use automatic vectorization software yourself, or you outsource to a service like ours when you start with a good image. electronics-1001827_640.jpg
Tip #1

Zoom into the image before you start. It’s not uncommon for images to look fine when viewed in full screen mode, but when you zoom in and start really looking at the images, you can see that there are problems. Here is a list of the types of problems that often occur:

Tip #2

Re-scan or re-draw a skewed Image before you try converting. You’ll know the image is skewed when the lines in the image are not perpendicular. Skewing is most often called by careless scanning, when the original drawing has been fed through the scanner at an angle. Of course, you can eliminate skewing altogether by accurate scanning in the beginning.

Tip #3

If the image has dots or smudges that are not part of the original drawing, clean it up before you try to convert it. Dots and smudges occur for all kinds of reasons when a document is scanned – dirt on the scanner glass is a common problem. Or, if the drawing is old, it may have tears, wrinkles or stains that show up as imperfections in the scanned drawing. These can usually be removed with the scanner’s imaging software, or in a pre-process prior to performing the r2v. Unfortunately, if you have large area of the drawing that has been compromised, you may need to redraw that section, if not the entire drawing.

Tip #4

Lines on a CAD drawing must be solid. When you magnify your raster image, and see black speckles rather than solid lines, you have a problem called “dithered lines.” The processes of conversion to vector requires that lines on the original raster file be solid dots, with no white spaces between. That’s the only way that the vector lines can be created accurately. When you see dithered lines, either rescan the drawing at much higher resolution, or contact an r2v expert.

Tip #5

Don’t use a higher resolution than you need when you scan the paper drawing. Lines with holes sometimes show up when a drawing has been scanned at too high a resolution. Scanning at a lower resolution should correct this problem, but often re-scanning is not an option. A good raster to vector converter, in the hands of an experienced r2v engineer should be able to correct this problem with a minimum of fuss. Provided that the holes are not too large, this is just a matter of filling in the lines.

Tip #6

Remember that vector is all about lines. If you’re using Broken lines an automatic raster to vector converter, the software usually makes use of a technology called “gap jumping”. This means that when the image is converted the software “jumps” over small breaks automatically. This automatic process only works if the lines are not too broken.

Also, when using automatic raster to vector for GIS drawings, often the contour lines are too close together to for the gap jump technology, and it gets confused.

In either of these cases, the only way to mend a very broken line or deal with contour lines that are too close together is to draw new raster lines and arcs over the broken ones. Even rescanning does not always correct the problem. This requires an expert in order to handle this process efficiently otherwise

Tip #7

Always have the best quality lines and as little noise as possible on your raster image before attempting to vectorize it. And, if you’re having a problem with the process, it’s time to call in the experts.

Which R2V Solution is Right For You? Fill the Form.

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