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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Designing pinions for an angled differential

I'm designing a set of beveled gears where the input and output are oblique. It's simple to design a single pinion connecting them, two isn't hard, and I can model three as pitch cones, but getting a ...
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Are bolt and nut dimensions standardized?

Given the nominal size of a bolt/nut, e.g M10, can one construct all other dimensions from it? Do these dimensions differ between manufacturers or are these standardized. If so, where can I find ...
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How to determine hole placement on a flat surface in an engineering drawing?

I am to model this part in CAD, but I am unsure as to how the hole spacing on the plate is constrained. Is there something I am failing to see in this drawing that defines the hole placements?
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CAD PTC Creo 5: How to get correct section view of rib feature

Hi. I am trying to get the correct section view of rib feature (as shown in the middle) in drawing made on PTC Creo 5.0. However, I can only get the view on the right. Please help. Thank you.
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In AutoCAD 2015 is it possible to dynamically label a line with bearing and distance?

In my AutoCAD 2015 project, I would like to label lines with a bearing and distance, similar to the image below, ideally in a way that allows them to dynamically update if I adjust the lines. I've ...
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Cadwork how to solder separate parts in 3D

I don't know if this is appropriate Stack Exchange site, but since it is for engineering I assume it is. In Cadwork v18 you could solder two separate parts (with shortcut ...
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Highlight gaps on joined surfaces - CATIA V5 (GSD)

Is there a possibility to highlight the gaps that occur when surfaces are joined? The gaps are displayed within the command. But after the surfaces are joined, the gap is no longer visible, but it ...
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Is the stiffness matrix defined for Element or node?

I see 4 terms in the stiffness matrix of a linear truss with 2 nodes (11,12,21,22). What is the order of the stiffness matrix? What does K(1,1) K(1,2) K(2,1) and K(2,2) mean?
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Diff/merge for CAD in 2022?

I'm fairly new as an ME, recently graduated so I'm used to working solo. Wondering how teams collaborate and do version control when working on an assembly together. In software, git's diff/merge ...
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T9 Torx Screw Thread diameter in Metric System

Helllo, I have to design a part that will have screws that can be taken apart with a T9 Torx Screwdriver. These are the screws that are taken apart first thing here. What is the thread diameter of ...
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How to hide lines from adjoining faces in Fusion360 drawings?

I'm designing a holding tank with a complex set of planar faces in Fusion 360 and want to produce face-oriented 1:1 drawings to fabricate a cardboard mockup for interference testing. I'm creating ...
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What CAD formats support material properties?

Let's say I have some parts nicely defined in a CAD package which supports assigning material to parts: Now I'd like to export this to another program and retain this information for the purposes of ...
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Hex Header for SolidWork file types

I have had a HDD become corrupt and trying to retrieve files off of the drive Iv got all except for .SLDDRW, .SLDPRT, and .SLDASM I have tried to get the hex header from these file types to assist in ...
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FreeCAD: FemAnalysis Python module missing

After trying to execute the GMSH macro by psicofil I got an error: ...
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How to place a chamfer on the end of an angle cut pipe

Background The part above is from 1944 V2 plans which I am using as real world practice examples to teach myself 3D modeling using Inventor LT 2021. Therefore there is no original designer/engineer ...
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What is causing the elliptical shape around the marked hole?

Background So I am looking at this piece titled "Ring" and I cant figure out what I am missing in the drawing that cause the elliptical shape at the two hole entrances on the right side of ...
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Thread indicator and modelling

In my on going series of teaching myself to model machine parts in Inventor, I keep stumbling across the following scenario for both external and internal threads. My reference drawing are from the ...
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Replicate loft-based object to value-driven object

I've made the following oddity in Solidworks: All the dimensions are known except for the top part. This is probably because this was done using the Lofted Boss/Base feature. The Loft profile goes (...
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In which file format are technical drawings saved/stored? How can the data be exchanged between other software?

I just want to know how the information contained in technical drawings is stored? Is there a kind of major representation/file format such as the boundary representation? Is all the information ...
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Mounting an electric motor to a transmission: how to measure

I'm trying to fabricate parts to mate an electric motor to a manual car transmission (although, I think this is a more general question). I need to connect this: To this: Like this: The approach I'...
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Autocad mechanical 2023 how to draw a tangent line?

I am learning Autocad because the company I have perspective to work for is using it. I have tried couple of things but none of them worked, first of all if I click ...
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How are 2D views from a 3D CAD Model stored in STEP-File with Boundary Representation generate for engineers to define details? And why?

I am new in this topic and need some help. There are 3D CAD models (stored as STEP Files with the boundary representation) and some engineers need 2D views of these models for further processing. With ...
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Using FreeCAD to retrieve planform area of aircraft

I have a science project I'm working on that involves a need to know the planform area of airplanes. The planform area is the area of an airplane as viewed from above the plane. I was told by someone ...
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Using FreeCAD to retrieve planform area of aircraft [duplicate]

I have a science project I'm working on that involves a need to know the planform area of airplanes. The planform area is the area of an airplane as viewed from above the plane. I was told by someone ...
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Why is my toolbox empty? (SolidWorks 2021)

If I open SolidWorks and go to the toolbox, it only shows 1 map named 'Favorites'. The toolbox as well as the 'Favorites' map are empty. If I click to configure it opens a window as shown in the ...
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Are these section views correct Autodesk inventor

So I used AutoDesk inventor and created this machine part for the purpose of exercise , But it is preferred to not to hatch ribs in my course so is there a way to make it look like image (5 and 6) ? ...
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Autodesk inventor create rib feature failed

It's been kind of painful to create a rib I'm new to inventor while I was trying to create a rib symmetric about the YZ Plane this error keeps popping up
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How to draw hidden rib in Autodesk Inventor

I drew the outer hollowed body and the cylinder on 2 separate parts but I can't figure out how to draw this rib so that it is passes through the centre of the cylinder, a video of a similar example ...
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Trying to draw rib tangent to a circle AutoCad 3d modeling

I'm trying to draw a rib tangent to a circle but If some one can link a video or a tutorial on how to do that I'd be really thankful here's the drawing in 2d (the rib is highlighted with the red ...
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What software is used to create the graphics for stuctural analysis textbooks?

I want to create some 2D and 3D drawings of simple trusses and frames. and I was wondering, what is the software used to create the graphics seen in structural analysis textbooks (example: R.C ...
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Animatronic Eye Mechanism - Eye Socket Spring Tension

I am building an animatronic eye mechanism that will ultimately be moved via servo motors for a project I am working on. It is comprised of the following components: Eye Plate - 3mm thick Acrylic ...
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Best Practice for Tracking Vendor Firmware Rev

My employer has had me create a model of a vendor product (using OnShape) and make a simple drawing with some overall dimensions that we can hand to customers. However, they want to include the ...
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How did mechanical engineers work before SolidWorks?

I am studying a bunch of stuff related to mechanical engineering and am considering an eventual switch to the field after taking the necessary classes. I'm older, and I took drafting classes in high ...
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How should I create the pendant shown below?

I use Creo Parametric to model. I tried to model the pendant shown below, but nothing worked. I first made an extrusion of a circle. Then, I created the outer arc using sweep. I was able to get the ...
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Is there sufficient information to complete the bottom end?

BACKGROUND Fresh of the heels of figuring out my "kinky" issues in this question I thought I was fully prepared to deal with the following drawing titled COILED PIPE 2. The drawing seemed ...
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Coiling and bending pipe in 3D model

BACKGROUND: I had previously dealt with 2 pipe coils with oddly bend ends. for the most part I was able to use the coil tool and was able to line up a bunch of 2D sketches to complete the odd end ...
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Stress/impact simulation of a solidworks design

I am creating a waterproof box that will be submerged under a few feet of soil and also must be able to withstand the impact if dropped from a height. I am wondering if it is possible on solidworks, ...
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Part drawing information vs Assembly drawing

With my progress through various drawings, I finally came across an assembly drawing with parts I have actually drawn up that caught my eye. The first part drawing as shown below is a simple sheet ...
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How to crimp the ends of a corrugated tube into fins

I came across this drawing of a "Finned Tube" (Google translate). Took me a while to make out why the horizontal fin was different from all the rest in the side view at first. It turns out ...
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A better way to copy, rotate and mirror parts

Oh good gosh I hated this process. Not because it this was a hard drawing to sketch, but because I did not know some very simple commands/processes like I do for AutoCAD. For the following drawing I ...
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Best way to array/pattern something in a sketch so that it remains in a defined region

I went back to to the holes in the plate from this sketch. Based on comments I am assuming the 2.5 dia. holes are equally spaced 4.25 mm apart covert the surface of the plate. I also made an ...
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What is the best way to handle the hole pattern in this drawing

Apparently I am on a roll of more questions than not today. In the following drawing, there is a pattern (partial?) of 2.7 mm holes. The word in German pointed at them according to google translates ...
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Are these cut lines?

In the following drawing I am looking at the lined that come in on either side of the teeth/tabs that are spaced 9 mm apart and extend 6 mm into the material. In my head these are cut or shear lines ...
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Proper way to model same diameter hole with different tolerances?

This drawing indicate 3 concentric holes. What I did was: Sketch the circle for the outside of the cylinder - 38.5 dia. Extrude the circle for the overall length of the cylinder - 37 mm Use the hole ...
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Loft not quite making the cut

I am working in Inventor LT 2021 which means I do not have access to the sheet metal tool. Which would have been great as the example I am working on is sheet metal. The example drawing I am working ...
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Concentric Circles & Section/Breakout Confusion

This is part of my on going saga of drafting question with respect to the V2 drawings I am using for practice while learning inventor. The following drawing is titled "Partition" (...
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Opening Creo file in student edition

Is it possible to open a part created using Creo commercial edition in the student edition ? I tried this but it doesn’t seem to work. Is there a way to do this ?
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Need help in Solidworks Macros. I want to add 5mm into previous dimension

Basically I have nearly 1000 files. I want to edit a dimension which is labeled D2@Sketch 10. Assuming that the name can be a variable, I want to do this task: D2@Sketch 10 = D2@Sketch 10 + 0.005 So ...
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Help in Solidworks macro for updating split children parts

I have a main file. I use a split feature to break it into two parts and save them as separate files. My goal is to change some dimensions in main file and the children files (the split files) getting ...
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Formation of robot links programmatically in Solidworks

Spherical Parallel Manipulator in SolidWorks My question is a continuation of the topic. Is it possible to form the links and joints of the robot not manually, but programmatically in Solidworks? For ...
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