Questions tagged [cad]

Computer-Aided Design is the use of computers in the engineering design process. It involves drafting, modelling, simulation, optimisation, and creation of technical documentation. The term CAD is often used to denote software for computer-aided design.

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Solidworks Extrude Base/Boss - Base Extrude Doesn't Seem to Exist Anymore?

I've started using SolidWorks migrating from other software, Creo Parametric (formerly Pro/E) and the Base/Boss terminology confused me. After significant research, I've found that a "base ...
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1answer
22 views

How do I interpret a fillet indication on a technical drawing

I'm reproducing in Fusion 360 an object based on a technical drawing, but I have trouble understanding what this means: When I read the Wikipedia article on Engineering drawing, abbreviations and ...
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23 views

FreeCAD - where are the library files?

I downloaded FreeCAD 0.18 from the Ubuntu Software (snap). I don't know where are the libraries, so i can do import FreeCAD and run standalone Python programs with ...
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19 views

FreeCAD - Scale object from command line

I want to be able to scale an object from the command line. Using the GUI i go and load the STEP file, and select "Draft Workbench". This is the code generated so far (that i am able to see ...
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Solidworks Loft error (guide curve not intersecting with profiles)

I am trying to add 'finger grooves' to my model of a brake lever and want to use a loft to do so. I have created (to my knowledge) all required sketches for the loft but SW gives me an error when ...
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3answers
126 views

What is “reversal” in mechanical engineering drawing?

I've come across these terms "reversals allowed" and "reversals not allowed" in a sample drawing while reading a GD&T course. What exactly are these terms? What do they mean?
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2answers
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How did OXO manufacture this colander with such intricate wall feature?

Here's my guess, but I would love to hear another perspective. I think this is injection molded. This colander has draft angles and the two mold halves use an intricate step-like wall pattern to ...
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1answer
35 views

Autodesk Inventor Make Holes on Different Edges Based on One Line

I need to invent a construction based on standard square tubes with holes placed in certain distance from each other and from ends of the tubes: I also need to imagine the tube with holes as a ...
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0answers
104 views

In freecad, how do you copy a sketch geometry from one plane to another?

I'm using FreeCAD, and I would like to copy all the geometry in a 2D sketch to another plane. So you have a 2D drawing on XY, and you want the same geometry to be copied to XZ. I can't seem to find an ...
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19 views

Setup Invention Process in Engineering CAD Software

I need to develop a collapsible metal construction. I have a few specific prerequisites. Generally speaking, it will be something like a big construction toy, but not be a toy. It has the specific ...
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Different results for every cloud compare aligning module

I have tried cloudcompare and the aligning ICP module like this: and give transformation matrix lie this: For one STL file twice and get different result for under 0.1 value in max distance like ...
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1answer
27 views

I need a roller setting where I input a 1 feet fabric and need it to be reduced and compressed about 9 inches and released back as 1 feet fabric

I have a requirement where I need to input 1 ft wide flexible 5mm thick fabric into a roller setting where my width is reduced to 9 inches and compressed and released back as 1 ft. I thought of using ...
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1answer
38 views

Help understanding this dimension sheet

I am trying to currently model a few parts for my custom 3D Printer. I have found some flanged lead screw nuts i'm going to use, but i'm having a hard time reading the dimension sheet. Specifically, ...
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How can I draw an angled wall with constant thickness per slice along an axis?

This questions is hard for me to formulate, so here is the problem: During these Covid-19 times, my dad (a mechanics manufacturing teacher) made two articles (1, 2) on how to design and model custom-...
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1answer
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Cloudcompare Cut at specific coordination by one reference cut (third part of question)

according to these two previous question: Cloud compare Cut at specific coordination by one reference cut and : Cloud-compare Cut at specific coordination by one reference cut (second part of ...
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1answer
33 views

Cloudcompare M3C2 vs C2M signed distance outputs (reference cloud problem!)

I have two mode which using the cloud compare for comparing those together, i used the ordinary distance compare method ( C2M signed method) with this parameter as you can see here: and for more ...
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10 views

Proper open-source software to compare only interior walls of specific location stl scanner files

I Like to compare two stl file of dental cast for interior walls changes at specific part of the stl file like this: I have seen this question: How to compare/quantify (populate) two .stl models ...
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40 views

Moving extrusions on bent surface

Hi there I found my self with a broken pair of headphones for which I am designing a spare part in Inventor right now. (Using Inventor Professional 2020). I have the problem that I have a set of ...
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2answers
37 views

Calculating and Designing a Ring Gear for LEGO

I'm working on 3d printing a planetary gear for LEGO. I've got a constrained set of planetary + sun gears and was looking into designing a custom ring gear. I've read a little bit into the design of ...
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1answer
35 views

Solidworks motionstudy/motion study causes parts to “jump”

(solidworks files here) I've made a small assembly thet mooves smoothly manually, but when I try to moove it the same way is motion study, it collides is a strange way... what can be the cause of ...
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2answers
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Banking progression in NASCAR tracks

the Bristol Motor Speedway is 0.533 mi long racetrack. The road is banked and circular. The straights are banked to 6–10° and turns to 26–30°. I have made a small diagram for ilustration. Before the ...
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1answer
148 views

How to model Motor Windings in Solidworks?

I want to model a DC motor in order to eventually do some simulations (temperature/cooling related) and I'm wondering what is the best way to model the motor windings? I've seen a few video's on how ...
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1answer
55 views

How do you create a mounting device for a PCB if the PCB's mounting hole positions aren't documented?

I'm trying to create a place for these PCBS to mount onto: https://www.amazon.com/ELEGOO-Prototype-Soldering-Compatible-Arduino/dp/B072Z7Y19F/ref=pd_cart_vw_crc_1_2/133-3052301-7665733?_encoding=UTF8&...
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Creating an extrude in creo parametric 5

I’m trying to create the following extrude. I have created a crankshaft based on the following sketch: I then removed material as follows, which is placed on the rear surface of the shaft. The ...
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0answers
27 views

How do I create nano-scale mesh electronics in Solidworks?

I'm trying to complete a project for my solidworks course and it involves nanoelectronics. The idea is to create a mesh array of field effect transistors (FETs) that will monitor the firing of neurons ...
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41 views

Cube vertex/corner blending/fillet algorithm

I created fillets/blending for a cube corner in 3 cases. For the first case, the 3 radius are equal. The blending surface is a sphere patch. For the second case, two radius are smaller than the ...
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22 views

Assign a name to surface in CAD STEP file

I have a CAD model designed in FreeCAD and need to export it to a STEP file (neutral CAD format) to be used in numerical anaysis software. I would like to assign names to selected surfaces in order to ...
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1answer
34 views

Bendable flaps on sheet metal

I'm trying to cut some bendable flaps on aluminium sheets for hooking/clipping onto some fabric. The flaps I have in mind look like this: Are these common features? Does anyone know the geometry of ...
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0answers
82 views

Wireframe parts in Siemens NX

This is probably a fairly basic question for seasoned Siemens NX users, but I can't find a solution anywhere. I have a large assembly and I would like to set certain components to wire frame view, ...
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1answer
47 views

Trying to get a plane at a certain distance and angle

I'm working with solidworks and trying to make a plane at a certain distance and angle from another plane. Just for some context, I want to do something like this: My plan was to create a plane at ...
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2answers
51 views

Design automation using fluid dynamics simulations

I have a question about design automation or generative design. There is a company that creates pumps. Their work-flow is following: 1) create design of a pump using CAD 2) create mesh for ...
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2answers
1k views

SOLIDWORKS - 3D Sketch of Trombone

My task is to create a 3D Sketch of a trombone like the one below My professor recommended defining the points 1-4 and putting a spline through them. I did that, but my resulting design looks weird. ...
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1answer
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What CAD software is this?

In Rocket Lab's presentation video, at around 00:21, you can see some engineer work with CAD software. Here's a screenshot: Can anyone recognize which software they're using? Asking for a friend.
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Getting From 3D a model to CNC router

Apologies if this is not the correct SE for this sort of question. But, this is the only place I've seen an appreciable number of CAD questions. If this isn't appropriate for engineering.se, a pointer ...
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Solidworks static simulation having issues

I've got everything set. Material is aluminum alloy 6061. I've set the component contacts to no penetration. I have a contact set where both blocks meet and keep getting the same error. The bottom ...
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1answer
25 views

Getting the elevation of a specific point of a elevation gridline

In a highway Project, I have to design a road connecting to roads together. The map I have on AutoCAD is a elevation gridlines map and I have x, y and z coordinates but I don't know how to get an ...
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27 views

Program for creating a cylinder given its axis, center and radius?

I have data with the following normalized values: Unit vector for cylinder axis: -0.00270666, -0.01226211, 0.9999212 Normalized coordinates for cylinder center 0.01412114, 0.01074875, 0.00017004 ...
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0answers
28 views

Is there any software for testing cad model waterproofing and isolation?

I have a cad model of a plastic box that is made of two parts. Two parts are connected with resin isolation. I want to test if my part is at least in theory ip86 water-resistant. So is there any ...
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2answers
42 views

Simplest software for making 2D and 3D visualizations(animation),

I have to do simple visualization or animation of movements for simple hand prosthesis. There are no validation or calculations required. I just want to show concepts working principles (movements ...
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1answer
107 views

Cad align with point vs auto fit at Cloudcompare via GEOMAGIC Control

I need to compare two STL (Dental model Scanned) files and find the deviation between their points, SO this two STL files have different boundary, so i already used the GEOMAGIC Control software for ...
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0answers
66 views

How to add a level to component hierarchy in Fusion 360?

Fusion 360 has the "browser" (tree structure) and timeline to represent the CAD model. When I realize I should have created a parent component for an already existing component, how to do this? In ...
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3answers
65 views

Design of Gating & Runner system in Gravity Die Casting

How to design gating and runner system in permanent dies so that material flows smoothly throughout the design without spilling back from the gating channel. What should be the shape of gating system ...
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1answer
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Software for automatic building floorplan calculation / drawing (packing problem)

An apartment yield analysis is a set of draft drawings in which the optimum residential apartment layout and resultant yield is calculated for a given building site, taking into account development ...
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1answer
147 views

(CAD) Inventor - Extrude rectangular pattern of circle sketches

[ Hello, I try to extrude a lot of circle sketches but I can't select all of them and when I try, there is so many lags. Does someone has a solution ? I am sorry I'm a noob in CAD. Thank you so much !...
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Fusion 360: Measurement issues to Slicer Software

So I made a design for the Autodesk Competition but for some reason, I have never had this issue, but when I export to .obj and open in S3D, it doesn't convert the measurements. My meaning: I have a 3....
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1answer
34 views

Cad file for turnstile mechanism/ one-way clutch/ one-way rotation?

I am writing my first 3D cad-file and I want to place into it a turnstile mechanism (a mechanism that allows a fixed axis to rotate only one way, and not in the opposite). Are there cad-templates for ...
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Help interpreting dimensions from this drawing

Why there are different dimensions for the same measurements on this drawing? For example 0.127mils and 0.097 mils pin to pin. Or highlighted 405 and 385 mils. I can't find anything on the datasheet ...
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378 views

Free alternative to openinig solidwork defualt files in linux( *.sldprt & *.sldasm)?

I migrated to Linux and don't want to use solidworks , so i need one software which could opening my already solidworks file like *.sldprt and *.sldasm . So i have installed FREECAD but it could not ...
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79 views

which open source CAD? [closed]

I need a 3D CAD software that permits to create parts and assembly. Right now, I try FreeCad, Salome and BRL-CAD. The first one can create only single parts, not assembly. Salome have the same problem....
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How can I see the scale of a DWG file?

We've been given a DWG file from a topographic survey of our garden. It looks great but when I try to measure dimensions of objects in Autodesk I know the real world size of, they're off by a factor ...