6 votes

Software for simulating electrical circuits

LTspice is another alternative, similar to the other answers here. It has a small, steep learning curve, but after a few hours you should have no problem to simulate simple circuits. You can do DC, ...
DimP's user avatar
  • 316
4 votes
Accepted

Importing 3D background to a 3D design software

What you are asking is to do compositing. Blender can do compositing; compositing Blender is also free and opensource.
Snack_Food_Termite's user avatar
3 votes
Accepted

sheet metal cutting measurements for ducts

There is a program called plate and sheet professional that appears to cover a good portion of your requirements. The site description notes that the results can be output in DXF for universal ...
fred_dot_u's user avatar
  • 2,343
3 votes

Free CAM/CAD for personal manufacturing?

It has been a few years since this question was posted and I wanted to add another more recent option. Onshape is a 3D solid modeling application that runs in the browser and thus is cross platform. ...
Eric S's user avatar
  • 475
3 votes

Free software for Piping and Instrumentation Diagrams (P&ID)

AutoCad P&ID A free application for educational use. It achieves all you are after: Integration into Revit and automatic tagging and listing (Share databases, xrefs, and more) Faster P&ID ...
chthonicdaemon's user avatar
2 votes

Vector graphics/sketch/CAD software that handles scaling as I would like it handled

Your question is a bit confusing because it seems like you wish to have features you find in a CAD application included in a Sketching software. So here I will recommend not a single application but a ...
TVDN's user avatar
  • 293
2 votes
Accepted

Parametric Mechanism Design Software

The two main options are OpenSCAD and FreeCAD. Both are parametrizables but in different way: OpenSCAD has a domain specific programming language while FreeCAD leverages an interactive approach. This ...
fetasail's user avatar
2 votes

How to create a flat pattern out of a mesh

There is a plugin in Blender that is pre-installed and just have to be enable. A tutorial can be found here.
Jonas Daverio's user avatar
2 votes

CAD software recommendation for airplane design

I have friends involved in the aerospace industry as part of an internship via Embry Riddle Aeronautical University. Almost exclusively, the curriculum involves using Catia for design and engineering. ...
fred_dot_u's user avatar
  • 2,343
2 votes

Best recommendation for converting vector files to gcode for Next Wave CNC

I tossed "inkscape vector to gcode" into my search field and the returns were overwhelming. There's an extension that is either default installed in Inkscape or easily added that covers ...
fred_dot_u's user avatar
  • 2,343
1 vote

Free software to compare two 3D models

CloudCompare seems to be a good choice to do the compare. With Nice Color range indicate areas been changed and how much are changed I manage to use Autohotkey to automate the process and post the ...
Jindi Li's user avatar
1 vote
Accepted

Create hundreds of complex geometric shapes with cubes, triangles and tetrahedra

One program meeting your Linux requirement is OpenSCAD, which is three dimensional modeling software using text based code. If your abilities extend to creating such code, you'll find that OpenSCAD ...
fred_dot_u's user avatar
  • 2,343
1 vote

What 2D technical drawing software can import a 3d STL model and use it to create the 2D drawings?

FreeCAD is the right tool for the job (if not the only one for free), you just need to invest your time to learn it. It has a TechDraw workbench you can use to generate technical drawings of 3D models ...
Duarte Farrajota Ramos's user avatar
1 vote

Best library java to write dxf file

You could try jdxf: https://jsevy.com/wordpress/index.php/java-and-android/jdxf-java-dxf-library/ You use standard AWT Graphics drawing commands on an instance of the DXFGraphics subclass just as you ...
jsevy's user avatar
  • 111
1 vote

Moving on from Solidworks

I hate to break it to you, but if you want to be a professional design engineer you are going to need adequate tools. Some clients might not even consider you if you don't use Solidworks. My ...
Eric S's user avatar
  • 475
1 vote

Moving on from Solidworks

The closest thing to Solidworks out there that is truly free and open source is FreeCAD. Despite all its limitations and idiosyncrasies it shares the same base concept of parametric design based on ...
Duarte Farrajota Ramos's user avatar
1 vote

What CAD software has a good variety of materials and includes a good suite of stress calculations?

I'll start by issuing a disclaimer: I am biased in that I retired from CNC Software, the developer of Mastercam. It's a paid CAD/CAM solution used by majors corporations. However, it does offer many ...
rrirower's user avatar
  • 1,159
1 vote

Program for Invention Engineering Constructions

Computer aided design software is a tool to allow designers and engineers to draw parts. Asking a CAD program to invent something is akin to asking Microsoft Word to write a book or asking a hammer to ...
Eric S's user avatar
  • 475
1 vote
Accepted

Free 3D Software for construction assemblies

It's unfortunate that you found OpenSCAD difficult, as it would be a strong contender in your project. For SolveSpace, one uses the Dimension option (D) and double click on the resulting figure in ...
fred_dot_u's user avatar
  • 2,343
1 vote

Drawing furniture

I'd suggest Sweet Home 3D, it has both 2D and 3D mode and a lot of furniture built-in.
svetlana's user avatar
  • 233
1 vote

CAD-System API without UI

I haven't used its python API extensively, but I believe FreeCAD can do most, if not all of the actions you listed from the python API, without running a GUI, based on this snippet from the FreeCADweb....
Isaac's user avatar
  • 159
1 vote

CAD software for creating electro schemes, supporting command line export to SVG

I'd suggest DraftSight for this, as it's open-source, free and very well supported and documented, and has an install base in the millions. https://www.3ds.com/products-services/draftsight-cad-...
GerardFalla's user avatar
1 vote

Using GIS to store any type of file

Can a GIS 'store' non-spatial data. Well, yes, attribute data can be stored in a GIS, at the end of the day, its just a relational database..... Can a GIS store a model file? Again in theory, GIS is ...
nr_aus's user avatar
  • 241
1 vote

Using GIS to store any type of file

There's a pretty significant disconnect between BIM and GIS in terms of actual parametric data - there is a BIM interchange format which retains most common BIM parameters but allows transfer between ...
GerardFalla's user avatar
1 vote

2D / 3D CAD design and simulation software for OSX?

A more basic option available is Solvespace. It's almost a simplified version of Fusion 360 with respect to the capabilities of the program. It won't generate CAM output, to the best of my knowledge, ...
fred_dot_u's user avatar
  • 2,343
1 vote

CAD vector graphic editor

You should definitely take a look at OpenSCAD (also called "the programmers solid 3D CAD modeler) - it is more of a 3D compiler than an actual modeler. The main difference to other CAD softwares ...
OpenGears's user avatar
1 vote

Line-based 3D modeler (alternative to Sketchup)

Blender will read in STL files I believe - just checked on the Blender.org page, and yes, it does: Alembic, 3D Studio (3DS), COLLADA (DAE), Filmbox (FBX), Autodesk (DXF), Wavefront (OBJ), DirectX (x),...
GerardFalla's user avatar
1 vote

Free Electrical CAD Software

You could try QCAD, i dont know moch about it but there is library with e-parts available http://www.ribbonsoft.com/en/qcad-add-ons . You can create, modify it... Insertion is similar to drag and ...
btjacker's user avatar
1 vote
Accepted

Three.js versus Babylon.js for CAD webapp

Babylon is much more about simulation and 3d rendering so Three.js would seem a better fit. Three.js is very mature, has been used in other CAD related developments and often used for browser-based ...
Julian Knight's user avatar
1 vote

Linux software for simulating electric circuits

I use the Quite Universal Circuit Simulator. It is a cross platform circuit analysis software and one of the best. Open source.
Aswin P J's user avatar
  • 925

Only top scored, non community-wiki answers of a minimum length are eligible