You’d best skedaddle

Introducing the F370CR and F190CR 3D Printers

These new printers pack a lot more than just a facelift. More and more, manufacturers are turning to 3D printers to supply rapid prototyping and custom tooling in high-performance materials. The new F370CR and F190CR 3D Printers offer a fully hardened filament path, letting them print the toughest composite materials.

Releasing with the launch of these two new printers is Stratasys’ new Nylon 10-CF material for F123CR. Stiffer and lighter than ABS CF-10, this new material excels at creating tooling fixtures, soft jaws, assembly jigs, and more. Its nylon base gives it impressive chemical resistance too, making it appropriate for use in applications that involve prolonged exposure to grease, oil, coolants, and other harsh chemicals.

Nylon CF-10 at work – custom soft jaws

F123CR series printers straddle the line between 3D printer and 3D production system. They provide some of the bite of Stratasys’ advanced engineering material portfolio while keeping the approachable and intuitive user experience perfected by the F123 lineup.

If you’ve determined you need the material portfolio of industrial 3D production platforms like the Fortus 450 or the F900 but aren’t ready to jump straight into a system with such a high level of commitment, the F123CR series could be your new best option.

Slimmer and sleeker with no special requirements. F123CR is the easiest production-grade 3D printer to welcome into your space.

New Features

All F123 series printers including the F123CR are compact and quiet when printing. This means you can easily put it in any corner of the office. Additionally, the smaller heated chamber doesn’t require a high voltage electrical hookup, so the printer can be run off any regularly available outlet. The printer also doesn’t require large support removal equipment. And the equipment it does need fits comfortably on the top of a table or counter.

We’re excited to share these new printers and we can’t wait to see what you’ll print using this new platform. If something you read in the article piques your interest, don’t hesitate to reach out to our knowledgeable sales team to learn more. We have a hardworking technical team on staff ready to discuss your specific application and prove the value of a machine like the F370CR or F190CR can bring to your business.

Email us at:

sales@cati.com 

Or give us call:

888-308-2284

Jake Wenzel

Application Engineer, Hardware Solutions

Computer Aided Technology

Over the course of my internship, I was able to take advantage of many of the SOLIDWORKS training classes offered through CATI. A combination of in-person and online courses prepared me to achieve both my CSWA and CSWP certifications. These certifications are not only a source of pride, but prove I have valuable CAD skills I can take into my future employment opportunities.

A custom Y-block wrench makes it easy to remove tight fittings on the Stratasys F370.

My Role

My role with CATI primarily revolved around the hardware side of the business – working with 3D printers and 3D scanners. From printer repair tools to custom-printed room placards, to organizational tools, I printed a lot this summer. The tools I designed and printed included a lockout key for an Objet printer, a Y-block wrench for the Stratasys F123 series printer, and a belt tensioning tool. These tools were printed using FDM technology with a Stratasys F370. Each of these tools taught me a different lesson about designing for 3D printing, such as the impact of slice height on surface finish and part strength or how tolerances can affect the fitment of moving parts.

One of the many custom room placards printed using the J55 Polyjet printer.

The Fun Stuff

More decorative parts such as employee name plates were printed using PolyJet technology on either the Stratasys J55 or J850. This technology can create parts with impressive colors, textures, and finishes, making it an excellent choice for design visualization. For example, the custom room placards I printed needed to contain the correct Pantone colors used in the CATI logo. This took some research and experimentation to get right but produced parts with highly accurate color recreation. These projects taught me more about the post-processing required to achieve a desired finish and texture using PolyJet printers.

This workstation was designed to accommodate the various tasks required to post-process Origin One parts.

Everything Else (More Fun Stuff)

Outside of these projects, I also worked a lot with the new Stratasys Origin One printer. I learned a lot about the new materials available with this printing system, some of which have incredible properties with regards to heat deflection. It was interesting working with my colleagues to develop procedures for working with an unfamiliar group of resin 3D printing materials. This provided me with opportunities to practice problem solving and workflow optimization in cooperation with a team.

I participated in a few scanning services, both on-site and in the office. Through these services I learned how different companies use 3D scanning for reverse engineering and quality inspection. During an on-site scanning service, I learned about how the scanning workflow changes to accommodate larger subjects – in this case, the axle of a bulldozer and an entire bucket attachment. I was able to apply this experience on a reverse engineering project where I scanned, reverse engineered, and designed clip-on project labels for our standardized project tray system.

During my time with CATI, I developed a lot of practical and hands-on engineering skills that are often overlooked in a college education. An example of this is the importance of rapid revisions. Many of my projects went through many iterations, and I learned from each one and improved the project as a result. The knowledge and experience I was able to obtain over the course of the summer was beneficial in preparing me for an engineering job in a way that cannot be taught in a classroom.

Aaron Fanjoy
Engineering Services Intern
Computer Aided Technology

‘Compare Geometry’ is a free tool within the SOLIDWORKS Utilities Add-In and is available at all levels: Standard, Professional, and Premium.

Open each of the two files in question, then navigate to Tools>Compare>Geometry and the Compare Tool will open in the Task Pane on the right side of your screen.

Under the Reference document dropdown, select the In-Work file from the list. Do the same for the Modified document dropdown choosing the other open file. If configurations are being compared, select the ellipsis icon to the right of the dropdown as highlighted below.

Selecting the ellipsis icon will launch the SOLIDWORKS File Explorer which allows you to browse for the intended file and specify the configuration before choosing Select. Otherwise, SOLIDWORKS cannot open the same file twice by traditional means, regardless of alternate configuration selections.

With each of the two files now selected, we will choose the ‘Geometry’ option in the ‘Items to compare’ section of the Task Pane for this example. If both files are oriented the same, the ‘Align parts’ checkbox does not need to be selected. However, sometimes an extrusion direction could be flipped from the sketch plane which changes the relative position between the two models in 3D space. Misaligned models may cause inaccurate results. Reference Coordinate Systems can be created and used for each file selection if necessary.

Select ‘Run Comparison’. Once the geometry has been processed, both parts will be tiled horizontally, and the next page of the Compare Tool displays graphical results for Volume and Face comparisons. Here, I have the original imported ‘.x_t’ file on the top and the modified version below.

Orienting one model (translate, rotate, zoom) will orient the other in unison for a true apples-to-apples comparison.

Selecting the volume comparison option enables Hide/Show for both added and removed material between the two models, as well as the common volume. Unique colors will be added to both models to easily pinpoint the geometric differences. More than one option can be used at a time.

Volume Comparison:

Material to Remove: 1

Material to Add: 1

Common Volume: 1

Alternatively, using the face comparison option allows Hide/Show for unchanged, unique, and/or modified faces between the two models.

Face Comparison:

Unchanged Faces: 0

Unique Faces: 10

Modified Faces: 3

Selecting the Options/Settings Icon at the top of the Compare Task Pane allows you to change the applied colors for each graphic option. Additionally, linear units, decimal places, rounding, and angular units can be specified for a Results Report along with position and angle tolerances.

Selecting the Save Icon at the top of the Compare Task Pane will prompt you to choose a save location and file name. The saved report will generate geometric data for: Face and Volume Comparison, Mass Properties, Model Check, and Modified Faces, as well as Jpeg’s of Model Views.

The Compare Geometry tool can be taken a step further by incorporating the geometric changes into the Reference/In-Work file; saving you time and effort to make any necessary changes. If this feature is desired, select ‘Keep bodies on close’ and then specify which of the two files you would like those geometric changes to be applied to.

Once you close the Compare tool in the Task Pane (provided the ‘Keep bodies on close’ option is selected, the comparison data will be saved to the intended file as a separate Solid Body and represented as its own line item in the Feature Manager Design Tree. Expand the ‘Compare Volume’ folder in the Design Tree and each subsequent folder to reveal the new Solid Body. These additional Solid Bodies are also represented in the Top-Level Solid Body Folder higher up in the Design Tree.

If additional bodies are added to the model, the geometric volumes can be merged by using the Intersect or Combine tools.

Lastly, the Compare Geometry tools allows for the comparison of Bill of Material (BOM) tables. This can be performed between two SOLIDWORKS assemblies or drawing documents associated to the selected files. This utility locates all BOM tables in the documents. Excel-based BOM comparison is not supported.

SOLIDWORKS Compare Utility also supports Documents, Features, and 3D PMI. For additional information on Comparing Drawing Documents, please see this blog: https://www.cati.com/blog/solidworks-utilities-compare-drawings/

Additional information can be found on the SOLIDWORKS Help site: https://help.solidworks.com/2022/english/solidworks/sldworks/c_compare_overview.htm

Gabriel Rodriguez
Application Engineer I
Computer Aided Technology

If you’ve ever found yourself doubting a certain product before touching it, you’ll understand that – yes, there’s often a lot to be learned from just the look and feel of products! Small design details go a long way in communicating sturdy materials and quality engineering to end customers.

With PolyJet multi-material 3D printing, you can ensure these design choices can be incorporated into your products from the earliest stages of the design cycle – starting with your very first prototype! This allows refinement and natural evolution of your designs based on real physical experience – not just intuitive judgement calls informed by technical drawing and CAD renders.

Overmolding is a simple feature that elevates the look and feel of your product. PolyJet 3D printing makes it simple to produce realistic looking and feeling rubberized grips with only a few additional steps. In this blog we’ll take a look at the overmolded prototyping process start-to-finish to show you how PolyJet can accelerate your design cycle.

In this blog I will be using SOLIDWORKS for my 3D modeling, but any CAD package that support multi-body modeling should be able to follow the same steps with minimal differences!

1. Start by Modeling the Base Body 

This is the basic form you plan to add your overmolding to. I will be using the blue handles of these pliers. I like to visualize my CAD plans, so I also sketched a quick preview of what I want my grips to look like.

2. Open the Part File and Create a Duplicate of the Body

Use the Move/Copy tool. Don’t apply a rotation or translation, we want it to remain in exactly the same spot! Overmolded features match the shape and curvature of the base tool body, so rather than remake it, we’ll just copy our existing geometry.

3. Create a Sketch and Cut-Extrude the Shapes You’d Like Your Overmolded Addition to be

Use the Flip side to cut option to keep only the common areas of your extrusions. Then use the Feature scope section to ensure you only cut your duplicate body. You should now have multiple bodies that overlap with the original base body.

4. Use the Shell Command to Create a Thin Outer Shell for Each of the New Bodies

This will be the depth of your overmold. I chose to use a thickness of 0.06”. After this step, you’re done! Import the multi-body part file into GrabCAD and use the part prioritization tool to make sure your grips are printed embedded into the handle. However…

Most overmolded features a gutter, a shallow recess that surrounds the rubberized grips. It’s used during the injection-molding manufacturing process, so it’s not strictly necessary when 3D printing. Nonetheless, adding it will give our product just another little bit of realism! Continue to Step 5 if you want to follow along, otherwise, skip to Step 9 to print now.

5. Use the Move/Copy too to Make Another Duplicate of Your Base Body

As before, don’t apply any rotation or translation.

6. Create a New Sketch Based on Your Original Grip Design and Offset the Contours Slightly

The offset value I chose was 0.02”.

7. Repeat Steps 3 and 4 with the New Sketch, this Time Choosing a Thinner Thickness Value for the Shell Operation

I chose 0.02” for my shell thickness value. When you finish, you should have 2 sets over overlapping shells – one that will become the rubberized grip, and a thinner one that will become the gutter around it.

8. Subtract the Gutter Bodies from Your Base Body Using the Combine Tool

Because the gutter body will eventually become a lack of material, we need to subtract it from the main body before sending our part to be 3D printed.

9. Turn on Visibility of the Grip and Handle Bodies and Save Your Work

Your overmolded grips are ready to be printed! If you’re working in Solidworks, Inventor, Creo or any other CAD packages GrabCAD natively supports, you don’t even need to export your work. Simply drag and drop your part or assembly into the GrabCAD window to import it.

Find a full list of GrabCAD supported programs and file types here!

For my assembly, I also added some color and small fillets to break the edges of the new additions. For non-rubberized components, you can assign colors in SOLIDWORKS, however, the export process can be unpredictable and sometimes colors may not come out as you expect. I plan to use the SOLIDWORKS exported color on the metal jaws of my pliers, but I’ll assign colors and materials in GrabCAD for everything else.

10. Drag and Drop Your Part or Assembly into GrabCAD Print and Choose Your PolyJet Printer

Then, select the top level group in GrabCAD’s part browser in the top left corner and use GrabCAD’s orientation tools to arrange your part on the tray as you’d like them printed. If you import an assembly, GrabCAD will faithfully recreate the location and orientation of all parts.

11. Select Model Settings and Use the Parts Browser to Select Each Body Representing Your Overmolded Parts

In Model Settings, click the drop-down menu and choose the Digital Materials tab. Select your rubber-like material (either Agilus or Elastico depending on your printer) and one other rigid Vero material.

The space below the Combine Materials panel will populate with a selection of material combinations. Hovering over each one will give you a description of its material properties. To choose a material, simply click on whichever option best suits your application. I chose a Shore-A 70 equivalent material for my grips.

12. Select and Assign Materials to the Remaining Bodies on Your Tray

You can use the same method shown before, select from tray materials or use the color picker, depending on how you want you model to look and feel.

If you select a material or color in GrabCAD, it will print in only the material or color you selected, producing a very clean look. If you leave bodies as they were exported from SOLIDWORKS, GrabCAD will print the with whatever color is already applied to them. In my case, I opted to leave the metal pieces of my pliers as they were exported from GrabCAD. Your mileage may vary using this method! Engineering CAD programs can have varied results when exporting color textured bodies.

All that’s left now is to print your prototype!

Here’s how my finished product turned out! The black grips are rubberized and feel like true overmolded components.

I hope this blog was informative and you might be inspired to apply this technique or others like it to your current design process!

For any questions regarding 3D printing, GrabCAD, SOLIDWORKS or any of the topics mentioned here, please feel free to reach out to us at sales@cati.com or 888-308-2284.

Jake Wenzel
Applications Engineer, Manufacturing Solutions
Computer Aided Technology

What is the PPT BASE?

Let’s start off with a little bit about the PPT BASE. The BASE utilizes pressurized spray nozzles to cover FDM parts with a cleaning solution. This is similar to how an industrial dishwasher would clean plates or cups. PPT’s Volumetric Velocity Dispersion (VVD) technology allows for full coverage of the large cleaning chamber with a special PLM solution. This expedites the support materials dissolution through a constant low pressure flow from above and below the part. This enables fast cleaning of large FDM parts that otherwise would need to be completely submerged in a traditional cleaning bath. In some cases this can leave sparse infill parts waterlogged with solution trapped inside the part. 

Infill Styles

Below you can find the standard infill styles supported in GrabCAD Print, the empty space in each pattern can become filled with cleaning solution and water during the traditional cleaning process. In some cases draining the sparse infill of waterlogged parts can take days to completely dry out. Parts need to be rotated frequently to ensure trapped detergent and water weep out of a part before shipping. The BASE refines the cleaning process by blanketing the outside of parts with cleaning solution. This can minimize or prevent detergent from becoming trapped inside of sparse infill patterns then slowly weeping out over time. Additionally, the BASE eliminates the need for a parts sink into the solution or be weighed down like in a tradition submersion bath. This also accelerates the cleaning process and time between a job being completed by hours to even days in some cases. 

Other Features

The BASE also comes equipped with an auto heat feature that preheats the machine before office hours. This ensures everything is ready when you walk in the door. The auto heat will begin ramping up the temperature about 2 hours before your selected start time and hold temperature before you start the first cycle. Being ready first thing eliminates any bottleneck of waiting for optimal temperature each morning before even starting the part cleaning process. This feature will also auto cool down if the machine is used with within a few hours of finishing its preheat to ensure the machine isn’t sitting hot when its not needed, such as on company holidays or weekends. 

One more feature to note is the auto dosing that enables the BASE to maintain a constantly full reservoir of cleaning solution. Traditional submersion tanks can lack a mechanism which automatically fills a max water level. This can result in the need of an operator’s attention during the filling and dosing process. With the BASE, the operator is freed up to do other tasks while the machine pulls only the required amount of pre-dosed solution to maintain a full reservoir during operation.

The PPT BASE has been in use at CATI’s Pleasant Ridge, Michigan facility for several years now and the team has positively felt the impact on increasing part throughput. From large Stratasys F900 and F770 parts to hundreds of small delicate F123 parts, incredibly fast and consistently cleaning has become the team’s expectation. For more information on the PPT BASE please see the link HERE to read more.

Ryan Henigan
Printed Parts Application Engineer
Computer Aided Technology

But adhering to hardware limitations can compromise the artistic intent of a designer when printing a prototype meant to show off a product’s color, material, and finish. This is where another methodology, pioneered by Stratasys, comes into play. That methodology can be better referred to as AMFD, or Additive Manufacturing For Design.

Built on the foundation of over 30 years of leading in the world of additive manufacturing, the latest Stratasys PolyJet J series machines afford product designers and artists nearly unrestricted access to seeing their visions come to life. That is to say, they can leverage what was once a technology relegated to the world of “this is how something should work” into “this is how something should look and feel”. Photorealism is absolutely crucial to being able to meet that challenge.

The first requirement for photorealism is color. In much the same way that inkjet printers deposit droplets of cyan, magenta, yellow, and black ink onto paper to form images, Stratasys’ J series machines rely on the same process, albeit in many layers, to create full color 3D prints. By full color, they are capable of a gamut of 500,000 colors. That’s a lot. Having a broad spectrum of colors is valuable, but it is even more important that the machine can make them in a consistent manner. As Stratasys is the industry standard for 3D printing, so too is X-Rite in the industry of color management. In partnership, X-Rite has developed comprehensive color profiles to accurately ensure that what a designer has envisioned and defined with their software is what prints out of the machine. For the even more critical color applications, designers can use X-Rite spectrophotometers to create custom profiles to their specific machine. Additionally, the machines are validated by Pantone, meaning critical spot color accuracy is available out of the box to meet any brand standards or other specifications a part may require. Prior to the J series printers, this was a functionality only seen in 2D art and publication.

On the topic of using software to design photorealistic color 3D prints, Stratasys has partnered with Keyshot. Another leader in its respective industry, Keyshot is synonymous with photo-rendering. It is used by the biggest companies in creating true-to-life renders for publication and animations for the big screen. Many product design companies already have Keyshot power-users on staff. For those that are just diving into using color in their design process, the software is as powerful as it is intuitive. Keyshot can import native CAD files onto which a library of premade materials can be applied. If that library isn’t big enough, it’s easy to import digital images and labels to be mapped onto the geometry. Using a graphical flow-chart of nodes, any material can be fine-tuned to meet specific requirements. Where Keyshot stands above the competition is the ability to export 3MF files with the color textures baked in that can then be natively imported into GrabCAD Print for simple print setup.

Keyshot is more than just a means to apply colors and textures. Photorealism in the context of 3D objects requires an additional consideration. Just like anything that can be picked up and touched, light casts shadows and causes specular highlights on shiny surfaces of 3D prints. Let’s take those graphical material nodes in Keyshot referred to in the previous paragraph. It’s possible to take detail in a texture and use a displacement map to generate physical geometry coordinated with the color textures. With Stratasys machines, today, it’s possible to print tactile wood grain, cloth, and knurling.

An iterative design process is fundamental to product development. When it once took weeks to outsource a prototype for hand sculpting, painting, or even tailoring, can now be done with some design tweaks in CAD and Keyshot and sending a print to run overnight. And that’s the entire workflow. Seamlessly moving from CAD to Keyshot to GrabCAD Print. That is the nature of 3D printing with the Stratasys J series machines. It’s all about streamlining one’s process and removing the traditional boundaries between conceptualizing designs and bringing them to life with photorealistic 3D printing.

Simon Pinter
Application Engineer, Manufacturing Solutions
Computer Aided Technology

What is Draft Mode?

Draft Mode is a setting within the Tray Settings tab of GrabCAD Print. Selecting Draft Mode will change many parameters within GrabCAD Print that result in a faster build time and less material used. However, the changes that GrabCAD Print makes to the part are not without consequences. The parts printed in draft mode will not have nearly as much strength due to their infill style and density. The extremely sparse support may present some challenges depending on the part geometry. For parts that are needed in a hurry for form and fit purposes, Draft Mode is a great choice.

What printers can use Draft Mode?

Draft Mode is a setting available on the F123 series of Stratasys printers, which includes the F120, F170, F270 and F370.

What does Draft Mode do?

When Draft Mode is selected, GrabCAD Print displays the following message:

However, GrabCAD Print doesn’t give any further information on the changes. Here is what I have gathered from looking at what has changed:

How much of a difference does Draft Mode make?

To test the differences each of these settings made to print time and material usage, I ran estimates for each variable. A twenty-sided dice was used for estimations.

Below are the results.

Interestingly, when I attempted to recreate draft mode using the available options the print time started getting longer! The special sparse support in draft mode makes some of the support settings more useful. The fastest setting ended up using the default SMART support with changes to the infill and the purge tower.

Below are pictures of two twenty-sided dice I printed as tests. The images at the bottom show a print job paused early on to showcase the difference in support structure. The purge tower on the draft mode print has some indications of moisture in the filament. This resulted in a rougher surface finish on the draft mode part. This wasn’t caused by printing in draft mode and therefore shouldn’t be considered when comparing the parts.

The comparisons below showcase the differences between the parts with supports still on (the draft mode part is on the right).

Can Draft Mode be made even faster?

Another variable that can be used to further decrease build time is Adaptive Slice. This is a setting that increases the layer thickness of a part in areas without changing geometry, like vertical walls. This decreases print time and usually increases part strength, but increases material usage slightly. This setting isn’t changed when Draft Mode is selected, but can be selected. Note that Adaptive Slice can only be used when there is a single part on the tray.

To test the effect of adaptive slice, a larger twenty-sided dice was used for estimations. The regions of darker green are printed in 0.010in layers instead of 0.007in.

Below are the results:

Once again the fastest setting ended up using the default SMART support with changes to the infill and the purge tower. Using Adaptive Slice while in Draft Mode decreased the print time, but increased the material usage.

Conclusion

Draft Mode can make your printing faster and more efficient, but knowing when to use it is vital. Form and Fit tests where strength isn’t needed are a great scenario for Draft Mode. Other situations that require higher part strength should not be done in Draft Mode, although some of the other settings like Adaptive Slice and Purge tower last swap may still save you time.

(Blooper: Always remember to tighten your tripod!)

Computer Aided Technology exists so our customers can focus on what they do best. If you have questions about our products or want us to cover a specific topic in a future blog send an email to tipsandtricks@CATI.com.

Until next time,

Kelsey Gabel
Application Engineer, Manufacturing Solutions
Computer Aided Technology, Inc.

When it comes to 3D printing assemblies, we can make our parts stronger and more durable if we include mechanical hardware. Combining prints with screws, inserts and fasteners we can achieve exactly the part we need with capabilities that go beyond 3D printing alone. In this blog I will be going through some tips and tricks on installing heat set inserts to your prints.

While it is possible to thread bare plastic, repeated use can cause wear leading to threading failure. Heat-Set Inserts are designed to be heated past the plastic glass transition temperature and inserted into the plastic part. The heat is removed once the insert is fully seated. As the insert cools the plastic solidifies, locking the insert into place.

While specialized tools can be purchased for installing heat-set inserts, a soldering iron will do the job easily and quickly. If you are new to installing inserts check out this link for step-by-step instructions on how to get started.

Preparing a part for inserts has never been easier! The tried-and-true method is using CAD and designing the hole using exact dimensions from the manufacture. This can take a lot of time, especially if you have lots of inserts or lots of different size inserts.

Our solution? Use GrabCAD Print! GrabCAD now has functionality to input the correct dimensions you need for your insert in its Model Settings menu.

See the below steps on how to use this time saving tool:

1. Have a cylindrical extruded cut feature in your CAD model where you need the insert to be- it can be any size, it will change to the correct size later.
2. Open GrabCAD print and import your model onto a tray, check all your print settings are as you need them.
3. Go to Model Settings > Face then selects your cylindrical feature.
4. Once the face is selected the Apply Insert button will be illuminated, click on it to display the insert menu.

1. In the insert menu you can specify the type of insert (Heat Set, Helical, or Custom) whether your hardware is in inches or millimeters, and the size of the insert.

A note on insert size in GrabCAD, the data for the inserts comes from McMaster-Carr catalogues and there are multiple lengths of the same threaded insert available for purchase. GrabCAD has the functionality for you to specify if the insert is short or long. The longer the insert, the more load it is expected to hold against pull out and therefore stress on it. For these longer inserts the tighter the hole needs to be. Similarly, the thicker the surround contours to hold the insert in place should be which is why the extra contour dimension, B, also gets higher, going to the longer insert.

1. Select the insert from the drop down list and then update the model geometry by using the Update button at the top of the window
2. Your model will automatically update the hole size to the correct geometry*

* This feature will only work when there is adequate diameter and boss length to create the hole. If your hole placement is too close to another feature GrabCAD will give an error saying it cannot update the model geometry. To fix this go back to the model and ensure adequate spacing from other features or side walls.

Sam Cheney
Application Engineer
Computer Aided Technology, Inc.