Look for zero thickness geometry or touching edges. I think the problem does come from the surfaces where the bodies. Add or remove enough solid material to the area of the zero thickness geometry to properly connect the edges and vertices. See our past tips of the month these latest observations are based on, creo 5. What cutextrude operation is resulting in this error. I would hazard a guess that your sketch isnt closed. Solidworks does not allow zero thickness geometry because it can lead to mathematical problems and downstream errors in the model. I often have lofts that should fit exactly together, they share the same guide scurves and edges but there is some little warp that makes the zero thickness body. What is the most efficient way to create zero thickness. Learn more about solidworks sheet metal with tutorials, tips, and tricks from javelins team of certified solidworks experts. Solidworks does not allow zero thickness geometry because it can lead to mathematical problems and downstream errors in the. This is one of my first models and i keep hitting a wall when trying to create a shell cant seem to do it succesfully for this part. Solidworks help has a page on zero thickness geometry. Autodesk does not change the dwg or dxf file format with each new release of autocad.
Solidworks tutorial filling a specific assembly cavity one out of many article by alin vargatu, cswe createdupdated march 11, 2014 last week i showed you how easy it is to fill a cavity at the assembly level using the new tools in solidworks. During the design phase of your model, you may use planes, sketches, or other twodimensional features that have zero thickness. Most solidworks users have created models utilizing the fillet feature, but many users are. Zero thickness error, what it is, why it happens and how to fix it. This topic comes up every now and then, and a dedicated lot go on about how they could do such and such if only they could make zero thickness geometry. When i import the file into solidworks and run geometry check i get plenty of zero thickness geometry errors. The model is fairly complex with many faces so i am not. Solidworks simulation validation blog pressure vessel. Not perfect, a little asymmetrical, and that wedge missing where i assume it errors out as zero thickness, but it works well enough. Look and make sure that each line has a coincident constraint with the next line at each corner and all the corners are joined.
What are the good practices to avoid zero thickness geometry in. The best practice is to start from the top of the tree and work down. I am surprised that solidworks users are not aware of the sheet metal bend tables included with the software and quite often i find there is a disconnect between designengineering and manufacturing departments. An advanced breakdown of the solidworks fillet feature tool. The software is unable to extend one or more faces along the path of the fillet giving somewhere for the fillet to end. Using sheet metal features and bend deduction trimech. Toolsoptions document propertiesline font toolsoptions document propertiesline thickness this drives the options available in the line font menu. My post will elaborate in fine detail on each example of nonmanifold. Microworkshops solidworks tutorial blog for beginners. Before this function was released at 2016 i have been coding my own matlab program to. Validation of solidworks flow simulation cfd software. The development of the boundary layer from zero thickness at the left end of the plate can be seen from the temperature plot. This is how we teach it in the solidworks essentials course written by solidworks themselves.
This command is used to determine the different thicknesses at each point on the part, which helps identify problematic areas that might be too thin or too thick in certain regions. Some portions of the revolve cut would indeed be exiting the model, and essentially cutting air. In this video tech tip, well help you determine the minimum and maximum bend radius for a particular bend using sheet metal features and. Collaborate more effectively and efficiently with your team good communication among design stakeholders is an essential part of any successful design process. Zero thickness geometry is when a feature is created that can not be solved due to the fact that there is precisely zero material at only a point or an edge. What is the best fea software for combustion in a time dependant dynamic chamber and. The reason why it is good practice to do so is because on complex curves often it will create a zero thickness geometry error. Every edge of a solid body must have exactly two adjacent faces. Every person learning solidworks and more specifically boss extrude, will have come acros. It is known, in solidworks, as zero thickness error. It would appear that creating that feature will create zero thickness geometry. In the extrude propertymanager, clear merge result in direction. It was included in the software when the product was first released back in 1995. From another post, i understand that this is due to merging two solid bodies that have surfaces lying against each other.
Being mainly connected with the software solidworks, i write this blog so that i can provide help to those people who have any sort of confusion regarding solidworks and its working. Here is a link to a zero thickness error fix article and video. Im creating a model and attempting numerous revolve cut features. Unable to create this feature because it would result in zerothickness geometry. Hi guys, i have received a step file that had been exported from creo.
Hi, im quite new to inventor and working with student version of inventor pro 20. My model is a wall with a cavity inside, and i need to mesh the airgap inside to evaluate the heat convection. In the spirit of halloween, learn the stepbystep process of virtually carving a pumpkin in solidworks. I already modeled the geometry in solidworks with walls coming with thickness and do not know how to model this problem. Learn how to deal with many different basic solidworks errors, like zero thickness error and more. Two or more parts can be joined to create a new part. Solid solutions professional design solutions 62,006 views 29. You do not have to go back and forth between different software for geometry modification, lattice creation, support creation, etc.
If this is your first visit, be sure to check out the faq by clicking the link above. That debate has raged for years, and here is some more fuel to the fire. An example would be if you created an extruded circle that is tangent to an extruded square. Zero thickness geometry error solidworks tutorial microworkshops. Is there a way to convert a 3d solid model into a surface without any thickness. Just remember that when creating a profile for a command such as a swept cut, make the profile extend beyond the edges of the part for a successful command. Solidworks 2019 introduces a brand new way to communicate your design ideas, by enabling you to add markups directly to parts and assemblies when using a touch device. Actually i was wondering if anyone could help me by modeling zerothickness walls in ansys fluent cfd. Try toolscheck and do a stringent solidsurface check. Initial interference is detected because of consindering shell thickness for no penetration and virtual wall contact solidworks simulation. We have programs in place to create 3d solid models of out product, but the engineers need surfaces without any thickness to do their analysis. Difference between surface and solids cad software. It later spilled over into twitter and other places.
They are finite elements with zero physical thickness. The final result of the solidworks world 2015 top ten list is. It is going to be used to run a flow simulation in solidworks. What are the good practices to avoid zero thickness. Resolve zero thickness geometry and geometric conditions. Converting a 3d solid into a surface autodesk community.
Solidworks tutorial filling a specific assembly cavity. On a mathematical level, the cam program can accept any arbitrary zero point, its just an offset in space and one is as good as another. While working on a presentation that a coworker created, i was reintroduced to the assembly feature join parts join is used when in an assembly mode. I am trying to model a human heart in ansys but i am having issues importing a usable file. Can inventor do this, or is there a 3rd party software that might help. Presently i work on solidworks 2016 premiumcompleted the fast track course i had at cadd center and looking forward to excel in ansys as well. What is the most efficient way to create zero thickness cohesive elements. Zerothickness geometry examples every edge of a solid body must have exactly two adjacent faces. Zero thickness geometry error occurs because the software can not calculate whether material should be placed in a certain point or not. To start viewing messages, select the forum that you want to visit from the selection below. Students with a valid student serial number can get access to mysolidworks. Support zero thickness geometry bidirectional sweep export sheet metal parts of an assembly to. Specifically the line thickness displayed in solidworks versus the line thickness that is printed. Students guide to learning solidworks software v i introduction solidworks tutorials students guide to learning solidworks software is a companion resource and supplement for the solidworks tutorials.
Why doesnt solid edge allow to create two portions of part which are touching each other at a point. A special mathematical formulation allows for thickness to be taken into account think of it as a virtual thickness. Solidworks tutorial filling a specific cavity using. Zero thickness geometry error solidworks what it is, why. Creo vs solidworks more fuel for the 3d cad software debate. In todays video you will discover how to make a thickness analysis in solidworks. Solidworks currently markets several versions of the solidworks cad software in addition to edrawings, a collaboration tool, and draftsight, a 2d cad product.
Solidworks was headed by john mceleney from 2001 to july 2007 and jeff ray from 2007 to january 2011. Program that provides enhanced engineering and design performances that help you get your work done faster and easier. The program zero also gives the cam software a single reference point for the toolpath. Zero thickness geometry is when a feature is created that can not be.
The fillet feature is one of the oldest features in solidworks software. Resolve zero thickness geometry and geometric conditions errors in solidworks. Solidworks needs to look a bit past the nurbs tothe underlying geometry to resolve problems like this. This is from someone who has been around both systems for many years, and is considered a complex geometry expert. In solidworks, use solids, solidworks doesnt work as well with surfaces, and they are harder to edit if you need to change them the only time i use surfaces is when im making a mold converting the part into separate mold halves good luck. In my now famous on the forum model, i am trying to combine two solid bodies, but i get the unable to create feature because. In the recent multibody thread on the solidworks forum, there was a side discussion about zero thickness geometry. Both are very similar and are fixed in the same way. This is infrequent error in solidwork while extrude cutting any object. Zerothickness geometry also known as nonmanifold geometry exists when edges or vertices in a solid model do not properly connect with adjacent geometry.
There are some advanced modeling techniques in play, but nothing that cant be mastered by a skilled solidworks user. You need to attach the part, otherwise we cant help you. Error message zero thickness geometry 2018 solidworks help. In solidworks often times you will see multiple errors rather than just 1. Every person learning solidworks and more specifically boss extrude, will have. Many of the exercises in students guide to learning solidworks software use material from the solidworks tutorials. Solidworks tutorial filling a specific cavity using boolean operations at the assembly level.
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