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.

Filter by
Sorted by
Tagged with
0
votes
0answers
10 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 ...
0
votes
3answers
31 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 ...
0
votes
0answers
13 views

Ghost / Transparent feature in STL from Autodesk Inventor

I don't know if I am using the correct terminology, but I want to ghost out of portion that is circled in red. The purpose is that when I add this as an STL to a program, I want to insert it into ...
-1
votes
1answer
47 views

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 ...
0
votes
1answer
33 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 !...
1
vote
0answers
29 views

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....
0
votes
1answer
20 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 ...
0
votes
1answer
36 views

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 ...
0
votes
0answers
29 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 ...
0
votes
1answer
54 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....
0
votes
0answers
20 views

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 ...
0
votes
0answers
22 views

How to know the maximum offset distance in solidworks that doesn't result a defromed shape

using the offset tool on surfaces can result a shape different from the one offset from, as in broken lines or edges instead of curves like this: is there a way to know the maximum distance i can ...
0
votes
1answer
29 views

After I knit the surface some blue sketch lines presist

Knit command on SW 2017 results blue sketch lines even with all surfaces selected I was following the steps in a tutorial and I am sure i got them all 100% correct up to that point. what could be ...
0
votes
0answers
9 views

3D assemblies - model nominal clearance, assemble centered or assemble pushed to limit

This is difficult to describe.. in general what is the best practice for mating parts in 3D assemblies to show the nominal clearance gaps. A simple example would be a pin and a hole. Would best ...
1
vote
1answer
65 views

Building a half-arch of a specific height, while consistently using an angle divisible by 90

I am trying to construct a lift handle in the CAD Sketchup. The circled part of the image shows the arch I'm referring to. The program, Sketchup, has a 'tool' called push/pull, and another tool ...
3
votes
1answer
88 views

How do I read this engineering drawing for this screw?

I am trying to recreate this screw hole in 3D modeling software Siemens NX. This drawing is from page 4-14 in MagneMover LITE User’s Manual document.
2
votes
1answer
42 views

The underlying library FreeCAD uses to manipulate STEP file format and format conversion

I am looking for answers to the following questions concerning FreeCAD from someone who is familiar with implementation of FreeCAD : Which library FreeCAD uses to parse STEP file format? Which ...
1
vote
0answers
29 views

Tolerancing considerations for temperature rated mechanical assemblies

I am currently designing a mechanical tensile testing setup to operate at different temperatures (-20 to 100 C) in a wet environment. I plan on machining two sets, one from stainless and one from PMMA....
0
votes
2answers
41 views

Find correct dimensions from mechanical drawing

I'm designing an electrical component into a CAD from the manufacturer drawing. The version I'm interested to is the code 106166-1 (6 positions, last entry in the table). I'm not sure to understand ...
0
votes
1answer
144 views

Bending a concave sheet metal lip in AutoDesk Inventor

I am trying to bend this sheet metal concave lip inside the electrical box. I also need the top of the bent part below the top edge of the outside of the box.
2
votes
2answers
110 views

What is an engineering term for this type of arm

I'm trying to describe a part - it's an arm that holds an axle sleeve (which ultimately holds a wheel). I'm stuck right now describing it simply as a "wheel arm", but was wondering if there was some ...
3
votes
1answer
61 views

How to add radial protrusions to a disc in Autodesk Inventor

First post here, trying to get a little help with Autodesk Inventor. I am trying to make a part that is basically a wheel with little nubs on the end (think of a lego with tabs on the outer ...
1
vote
0answers
50 views

CAD - Using code to edit a CAD file

I have a CAD file in SketchUp that I would like to edit using code (ie: its dimensions, properties, etc.) What is the best way to do this? If I export the file as an STL, is there a program where I ...
0
votes
1answer
95 views

Fusion360 - How do I fill these sketch planes into a body?

How do I make this highlighted part of drawing a solid body so that I can than boolean / subtract it later? All of these faces / planes are connected.
1
vote
1answer
34 views

How do you implement a pattern over a bent plate in Autodesk Inventor?

I am attaching the model part as an Image below for your reference:- I need the pattern like this on the above model. I have the model shown above, and want to put embossed lines 0.2 mm thick with 0....
1
vote
1answer
52 views

What is a mechanism with teeth like this called? [duplicate]

I'm trying to describe a part that I'm designing that has a disc with incremental teeth, like what is pictured here; which mates with a similar part. What is this type mechanism called? And what are ...
1
vote
1answer
68 views

Tool Clearance at Bottom of Milled Thread

Hi, So I have a large piece that I want to thread (the entire region in blue), but I am not sure how much space to leave at the bottom for retraction of the blade (region in red), see above image. ...
1
vote
3answers
40 views

How to calculate properties of a thread?

I have a simple thread joint between two objects: and want to find a size of those threads so that after rotating male part it stands at the specific angle. For those who is curious I made it in ...
0
votes
1answer
35 views

How buildings 3D model is created [closed]

Suppose I have a rough 3d model of a building created it some CAD software. Now I want to change some portion of the model based on the following factors Lighting Energy consumption Structural Load ...
0
votes
1answer
115 views

How to make datum planes on a cone in Creo?

I am trying to make this I was able to make the base feature but I am facing problems with the secondary features. So could anyone shed some light on how to make the datum planes on cones. I made ...
1
vote
2answers
489 views

Creating a “half dome” in solidworks

I have a half cylinder shape, and another half cylinder sketch perpendicular to that first cylinder. I wish to create a "half-dome" between these two surfaces (picture what should look like almost a ...
1
vote
1answer
62 views

Crafting a mirrored shifting drum for motorcycle gearbox

I would like to reverse the gearing of my Husaberg FS 650e motorcycle so that by pressing the shifting pedal the gearbox changes up instead of down to the first gear. There are many solutions on the ...
3
votes
0answers
35 views

Converting Creo files to STP on linux

I need to send out some PRT files for tooling that have been made using Creo. I do not have a windows PC or mac available at the moment, only linux. Does anyone have some advice how to go from here?
1
vote
2answers
29 views

Why are there multiple ways to save polygonized 3D model data?

In CAD, there are multiple file formats only for the scope of saving polygonized models in three dimensions. For example, there is the Object File Format and furthermore, there is the much more ...
0
votes
1answer
100 views

Curved Slider Mechanism With Two Different Radii

I'm trying to make a slider mechanism that is guided around a curved rail that consists of two different radii. As you can see in the image, the section of the rail with a diameter of 120 mm requires ...
1
vote
0answers
29 views

How to put the green diamond back in it's original position in AutoCAD 2018

How would I go about resetting the position of the green diamond which acts as an anchor point for these text objects? The idea is to be able to move the text box around with the green diamond in it'...
0
votes
2answers
82 views

How to indicate standard screw thread in drawing

I have no experience with actual CAD drawings and CNC machines so please forgive me if this is a really stupid question... Anyway I have a part which I have 3D printed and it contains some internal ...
0
votes
2answers
2k views

Please Help me Read this Engineering Drawing

I am trying to CAD up a drawing for a plate for this motor to mount to. I figured it would be easy since they provided an mechanical drawing, but I have never seen one like this before. Can you please ...
0
votes
1answer
66 views

How would I get my hands on something I designed in Solid works?

Lets pretend I designed a plastic Lunchbox, like the ones pictured below in solid-works. What processes or options are involved in obtaining a physical sample of my design?
1
vote
3answers
94 views

Making complicated curves / surfaces in the real world accurately

There are many complex mathematical shapes like the cycloid, cissoid, umbilic torus (picture) or the shape of the Azadi tower. Sure one can design complex objects like this in CAD software today but ...
0
votes
2answers
34 views

How to model the inside of a server for CFD and thermal studies?

At my workplace I have been assigned to create an accurate 3D model of our Dell PowerEdge R820 servers so we can insert our custom cards and run a CFD and thermal analysis on them. The end goal is to ...
0
votes
1answer
533 views

How to use more CPU cores in SpaceClaim?

This is a more technical rather than professional question. I have a hyper-threaded quad core CPU. While building models in SpaceClaim I noticed that it only uses one logical core. A single core will ...
2
votes
1answer
140 views

Simple and easy Open Source CAD tools for basic 2D and 3D designs [closed]

We are planning to start a basic course on Computer Aided Designs (2D and 2D) for high school kids. The idea is to help them shape their innovative ideas into something tangible. We shall finally ...
2
votes
1answer
80 views

How are IFC file material relationships maintained across platforms

IFC files have an IFCMATERIAL property which names a material and is referenced by other components in the model. The IFC file doesn't point to a materials library, doesn't indicate a system variable ...
0
votes
1answer
14 views

What is Design Element in the context of asset management

In the context of physical asset management (BIM etc) what is a Design Element? I have come across the term several time but never in an official document - can anyone explain the term and provide a ...
1
vote
1answer
27 views

What is the name of the vertical lines in groundwork plans

When producing groundwork designs especially in Bentley software, I noticed people like to produce them with contours and vertical lines or even tadpole-shaped lines instead of simply doing ...
1
vote
1answer
98 views

What is the most accurate geometry to represent earth

Currently software and maps represent earth in many different ways, the latest is Point Clouds as this is the most common surveying tools currently available. For the needs of visualisation, ...
1
vote
0answers
22 views

How to calculate the Jacobi of electron/hole continuity equations for semiconductors with respect to potential when applying Newton's method?

These are the discretized drift diffusion equations as taken from the book "Analysis and Simulation of Semiconductor Devices" by Siegfried Selberherr. The electron continuity equation is: $$\begin{...
2
votes
3answers
49 views

Autocad - multipage drawing with all content in the same model space

I have inherited a set of templates for creating drawings for solar panel projects. Each set is about 12 pages and only 2-4 pages are different between projects. Several pages are actually just ...
0
votes
1answer
79 views

How can I *more accurately* measure the weight of a hanging bottle?

I have a project where I need to be able to measure the volume of remaining liquid in a bottle based on weight. The idea is to use a Force Sensing Resistor: (model FSR402-Short Tail: http://www....