Science topic
AutoCAD - Science topic
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Questions related to AutoCAD
A helix has a) a base and top radii of 2.5 mm; b) the number of turns = 2; and c) the height of the helix spring = 2 mm. A point lies on the helix from which a line is to be drawn such that the line is tangential to the helix.
The tools are/include the followings:
AutoCAD
Geographic Information Systems (GIS)
Remote Sensing (RS)
"With my background in SolidWorks, AutoCAD, and Ansys, particularly within the field of electric vehicle (EV) design for the automotive industry, I'm highly motivated to contribute to the development of EVs. Do you have any internship opportunities where I can utilize these skills?"
Hi, I use Epanet for designing irrigation systems. I start by using AutoCAD to define the pipe network. Then, I use QGIS to assign a corresponding elevation to each node, and I return to AutoCAD where I have a 3D pipe network with x, y, and z coordinates. After that, I use Epacad to convert the file from .dxf to .inp (a file readable by Epanet). However, I always encounter the same problem with duplicate nodes. This means that I have the same line using a start node and an end node with the same coordinates but different IDs. The issue is that I have to manually delete each duplicate node before running Epanet. I've developed a code to handle this, but my question is: has anyone else experienced the same issue with duplicate nodes, or am I possibly making a mistake in my process?
The 1st image shows the moment when I import my design(IGES) into the Mechanical APDL. The 2nd image occurs when I wanted to Operate>Boolean>Divide Volume By Area. The design is a regular pipe with 2000mm in length and a small defect. I wanted to section the defective area so that I could create a much smaller mesh in the area. I have also tried a simple drawing of a pipe which was press pulled in AutoCAD and imported to Mechanical APDL, it shows another problem on the 3rd image. How do I make ADPL read my design as a volume if that makes sense? Please help me assess what might the reason for these errors to occur.
I‘m facing a problem in importing data from autocad civil 3D to Swmm is there a specific way to transfer data between them ?
Is it possible to create a random 2- dimensional shape using mathematical equations Or in software like 3D-max and AutoCAD? like this one:
Dear commubity,
I have a question concernig the geometrical modeling. My question is as follows:
May i create my geometry in ANSYS Design modeler and save it as a CAD model, and then import it in the ANSYS APDL as any CAD file which is imported from a CAD software like Autocad, Solidworks, Catia?
Thank you in advance.
Sincerly,
Hajar
i have created my building on autocad and i want to do the rolling sphere method for lighting protection to show the protective zone.I don't know which steps to follow to do that on autocad and i want someone to say me the steps which i need to follow in order to make the protective zone .I want to create the red area which is in this image.

I have draw on autocad 3d my 3d building and i want to do the rolling sphere method to see Which place on my building is protecting.I dont know what steps to follow on autocad to create the protective zone .
How to connect Autocad Software from a laptop to a 3D printing machine or a milling machine, to execute a 3D design?
Hi
I need to print out a model that I drew in Ansys Maxwell in its real size. A way for that is to export the model to AutoCAD. However, exporting option is inactive. Could anybody help me with this issue?
Thanks,
I made a sketch in autocad. which contains many small objects but when I import the sketch to abaqus to make part it gives msg that "section must not be self intersecting " there are no intersection in autocad sketch .how can this be resolved ?
Hello Everyone!!
Could anyone tell me if there is a software which validate a grouding grid of electrical substation, i.e I import the grid from autocad sofware and put it in this software to verifie the touch voltage and step voltage.
Thank you in advance.
I want to focus on three topics; sustainability and how to reduce emissions from buildings or the material choice for more sustainable design or talk about how BIM/ AutoCAD has helped to reduce the construction industry carbon footprint
i have to do some simulations related to vehicle so if any one know about 3D model of car or any other vehicle in hfss so please share with me.
I draw "conical helix antenna on a dielectric sheet" in AutoCAD. I labelled the layers of the helix as layer 1 and cone as layer 2.
And then import the drawing from AutoCAD to Solidworks. The file converted into 3D, and I saved it.
Finally, I import the into CST. The helix disappeared, and only the cone appeared. Why it's missing? how to get it back?
I wanted to do parameterized simulation and optimization in CST for this shape. I have attached the picture after import in CST and the AutoCAD & Solidworks files. Please help.
thanks in advance.

Hello everyone, I tried to export an .stl file of a 3D designed pipe adapter with threads in AutoCad 2022 Software, however, the threads were missing. I tried multiple times but all of my attempts failed. Any idea?


I am doing some academic research in Network Analysis using ETAP. Study scope includes Voltage Stability, Harmonics, Reliability Assessment, Transient Stability, Optimal Power Flow, Switching Optimization, Volt / Var Optimization, and Optimal Capacitor Placement.
I have the distribution network design in AutoCAD® (.dwg) format, and also the load profiles, availability data per feeder, and transformer ratings, etc.
If you are interested in research collaborations or an expert in ETAP willing to provide technical support, please let’s discuss further, Call or WhatsApp +2348033314319. The study would be published in International Journal.
Thanks.
I have two images attached, there is an image with white lines used to make stonewalls, and another image has no lines.
I would like to know how to draw those lines using either Autocad, Microstation, or even possible QGIS and ArcGIS.
AutoCad and Solid Works are two of the most famous CAD software for Engineering Design.
Dear all;
I searched for a 3d cad software for the purpose of designing the plant of the conclusion project, and I found plenty of them, such as; Autocad plant 3d, Solid work, Factory design suite, Plant design suite, and solid edge. Although of all of those softwares, I don't know what is the suitable one?
I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?
Hi,
I just want to know which software is more effective and easy to use in 3d modeling , estimate, 3d rebars etc. You can answer in your own point of view and your experiances.

It seems like quick cad was the software but had been discontinued. I tried with other Autodesk software such as fusion 360, AutoCAD. I also tried with QCAD. Please let me know if you know of any or if you know how to get QuickCAD.
II have been trying to simulate the 3 point bending test in workbench and i managed to obtain line loads, two below the material and one in the center, at the top of the material. When i solve this, I am getting the error "Invalid Volume". What could be the reason? I have attached a screenshot.

I am performing finite element modelling using Python. The output of such analysis is often deformed shapes or stress contours. How can I export this output in such a format so that I can load it directly into AutoCAD?
I exported my design to dxf file but in the dxf file it only shows the drawing and no dimensions. How can I add dimensions in the drawing in the dxf file while exporting in cst?
I drew roughness profiles using a profilo-meter and then saved them as photos. Now I want to do a statistical analysis on the profiles , like determine the distribution function for each profile, but I do not know how to get the point coordinates on the profiles.

I am using COMSOL to conduct heat transfer studies for a solar module. I have drawn the separate geometries in AutoCAD and imported them into COMSOL. However, after simulation, the edges of the geometries have a constant temperature, almost as if they are not in contact with the environment. If a make a very simple version of the geometry using COMSOl itself, then the new geometry seems to properly dissipate heat to the environment. Has anyone experienced similar issues with imported geometry? I don't quite understand why imported CAD geometries have this issue.
Dear Experts,
Would you please help me out in how I should convert AutoCAD 3D to GIS 3D?
I appreciate your time in advance.
I want to create tools box.From that tool if i select any tool and drag the mouse in frame there should option be option to ask input
Like as Auto Cad tools
I want to draw a shape of piston (that is attached) in Auto CAD and save it in dxf format and then import it in AVL Fire in ESE Diesle part.
after draw it in CAD when i import it in ESE occur an error
''contour in piston file is not closed''
I don't know how exactly draw it in CAD?
with pline, spline or ....?
how to close the shape of the attached file in CAD?
as you know i draw it in 2D.
Many thanks,
Masoud

i know that it is not possible to draw meander line helix in CST. how shall i draw parameterized meander line helix to be imported to CST for simulation and optimization? what software shall i use? Autocad or Solidworks? any example of meander line helix creation?
Please refer to the attachment for the example of meander line helix.

I have a design in Autocad. I want to make 64 by 64 matrix of that design. The basepoint of all those 4096 elements are defined in an excel sheet. All the elements are not placed in equal distance, so they have random coordinates. Is there any way to do this? Do I need to write a script file or can Autocad directly read positions from excel sheet and place my object on those positions?
I have a shaft 50 mm dia. On the surface there is a groove 2 mm wide and 2 mm deep. I want to fill that groove using welding. Is there any software I can use to simulate this and then perform structural analysis.
The performance improvement of the vertical turning lathe (VTL) machine tool through enhancing the cutting speed to improve production rate with fine surface finish with the design, feasibility of manufacturing, time with cost effective using auto-CAD along with pro-e..
how a 3d mtalab structure can be exported to autocad for further analysis on abaqus ?
I want to import the topography auto cad file to mike 3. could you please guide me?
other than AutoCAD and Photoshop...
I am interested to know more about BIM (Building Information Modeling).
Hi all!
Can anyone tell me from where can I learn to write scripts in autocad? Is there any site or book?
I understand that with them, basic functions can be automated.
Hi all!
I have a sketch, which contains a square and several iregular shapes which are randomly located inside the square - i have added a dwg file and picture.
I need to get coordinates of center of mass for each of those iregular shapes. I know that I can do it manually by using command MASSDROP, but I'm wondering if there is a automative method to do this, so I can just press a button or tow and do it automaticly, because I need to replace all these shapes with circles which center is in the center of mass of those shapes.
Can anyone help me?

How to create 3D of a pond or hill using contour map data in Autocad or any other computer application (need to export the 3d object to ANSYS).
Dear Members,
I wish to develop an urban rainfall-runoff model for a large city which is approximately 220 sq. km. After estimating the amount of runoff, I must propose appropriate options to collect the excess runoff.
There are different programs suggested by different experts. I am familiar with HEC-HMS and I know that the kinematic wave transform and routing method are designed for urban rainfall-runoff modeling, but some colleagues suggest using EPA SWMM or Autodesk AutoCAD Storm & Sanitary Analysis.
I am confused and I don’t know which program is more robust and should be selected.
I am grateful for any information you can give me.
Regards,
Bahareh
Can Some expert can let me know Different Link building Techniques working for you in 2017 which you done manually without using SEO tools
I am creating a building multizone with TRNBuild /TRNSYS (Version 16)
Hi all, I am new to ABAQUS CAE and is trying to seek help in RG with regard to my research project.
I am trying to mesh a marine stabilizing fin (Basically a tapered plate with hinges-solid) and Abaqus prompted me with the following warning 'The selected regions cannot be meshed automatically using the assigned element shaped. They must either be partitioned, assigned a tet shape, or manually meshed using the Create Bottom-Up Mesh tool.'
I was using S4R element for the ship shell, and i have tried other elements and it doesnt work. Can someone please advise? Thank you.
The part is attached if it helps. It is drawn using autocad 3D and export to abaqus as a part

I am a mechanical guy who need to learn Abaqus for thermal stress Analysis for varied time. I am familiar with Ansys Workbench and AutoCAD Inventor. What should I do to use Abaqus from basics? Are there any books or websites which could guide me?
Thank you!
there are many programs and software used for phylogenetic tree drow, but what is the most important one and is AutoCAD good for this purpose?
I am working on analysis of water distribution networks. In this regard, I am using AUTOCAD drawing for the network which is to be imported into EPANET. So, can anybody explain how to import autocad drawing file into EPAMET workspace.
I want to know How can i import autocad file to ansys mechanical apd. And the method to make cad file with any structure to import to ansys.
I am trying to use abaqus to model a thermal Sea Ice Core system. The System has a 1m long ice core inside a housing of insulation. However, there is air in-between the ice core and the insulation. One end of the ice-core is -2 C the other is -22 C with an ambient temperature of -12 C. I understand how to make the ice core and the insulation with ambient temperature but run into problems when trying to make the air and then put it all together. Should I make them all different parts? Is there an easy way to fill the space between the two with air? How would I go about putting it all together and running the abaqus thermal model? thanks
I imported a 3D solid Geometry in SAT format in ANSYS Workbench 15.0. It turned out to be hollow in ANSYS, but it was solid in Autocad. I am attaching screenshots 6 & 7 to support my motion.
When I tried to use FILL command on surfaces to fill it and convert to 3D again, it didnt worked out.
It shows following Error : Model Size is out of Range.
How to Rectify this problem?



I wanna analysis "spot welding" by workbench(Thermal-Electric) , it's must provide Alternating current(AC) current 50Hz. How to set up ?
Or does anybody have done the same analysis? please tell me how to set , Thanks.
The attached file is the result of my analysis , but nugget's position is wrong. Could anybody tell me how to fix it?

I need to model a cylindrical tube with an elliptical opening, the problem is that I can't export what I've drawn in AutoCAD (even in SOLIDWORKS), to Abaqus (Abaqus gives an error message, saying that the opening can't be meshed). How to solve this problem? Is there a way to draw such a shape in Abaqus?
Hi.
I want to simulate ground in ansys. Is there any auxiliary software to do this? For example SOLID-WORK or INVENTOR.
Thanks.
I want to plot the city map on the transcad software
When we draw some drawing with some dimension in autocad it does not print drawing with exact dimension rather it prints the current view of drawing. So how to print drawing with exact dimension as drawn in software?
How to export the Bill Of Material (BOM) from AutoCAD to excel???
I have a DWG File which is in GRS80 projection, and I want to reproject it to UTM Zone 52N. How do I go about it in AutoCAD 2010? I tried importing the DWG file in ArcMap, but ArcMap does not recognize its projection so I'd prefer to perform the whole process in AutoCAD.
I want to deposit gold contact on thin film for Hall effect and resistivity measurement, I need AutoCAD file of the same so that I can get this templates. If anyone has such drawing please share with me
Hi everyone,
I know with other autocad software you can add and display dimensions of a structure but how do we do this in HFSS?
In HFSS you can view dimension through modeler->measure>then select one of the four options,my question is how to add or display them on a structure?
Thank you
Hi
This geometry has some serious issues.
When you look at the bottom of it, the face is actually made up of 2 surfaces. Moreover
when you look closely you will find a gap between those faces which goes deep inside
the geometry.
I don't know what question should i ask, its just i want to fill that space. Without that I am unable to mesh it in ANSYS.
Is recreating the geometry the only option?





Morning All,
I have not used AutoCAD for over 12 years and will like to relearn same using on-line tools, preferably free. The last module of AutoCAD I used was AutoCAD 14.
Any advice would be appreciated.Thanks
I want to draw a 3D printer model by AUTOCAD.
Now I'm stuck by a problem which I want to draw cylinders on a spherical surface. I can only draw cylinders on the sphere structure lines. and I want to distribute cylinder to all surface with the same pitch. How am I able to do this?
P.S. I'm using this model to 3D printer, So it is a solid model.
I have modeled an ISO shipping container in AutoCAD. I have saved these files in IGES, .x*_t format, but when I am importing these files, it was showing error and unable to upload the model in either workbench/APDL.
Can anyone suggest what are the possible errors in doing so?
I have a drawing in dwg format that contains regions and not polylines. I am trying to convert it to GDSII format using LinkCAD. But since the drawing contains regions it somehow ignores certain sections. Using Autocad explode & Pedit seems to add extra random lines where polygons are present. Any work around to fix this?
I tried coreldraw but I couldn't find any template to such schematic.
