I recommend Scna2CAD too…

AutoCAD has a rendering option which shows curves like this. I believe it’s to save on GPU load.

You can switch it to show true curves. This was answered here: How to fix jagged/blocky circles & arcs in AutoCAD?

You can determine the area of a hatch entity using the properties tab.

As shown in this video

What DXF Files are you talking about? Please provide more information so we can help.

In general, DXF files can contain many different units of measurement. Including inches, centimetres, millimetres and feet.

My guess is you’re talking about the free DXF files provided by scan2cad.com  ?

This is a totally separate website. A community for helping answer CAD questions.

Regen would also be the first thing I’d try. The lines could have a hidden property. If you rightclick the entity is it marked as hidden?

Hi there rockmoom,

Here’s a video tutorial on doing FEA using Catia

https://www.youtube.com/watch?v=hVVEdHlfNxw

and here’s another for Solidworks:
https://www.youtube.com/watch?v=KOcI2eQ036M

However I suggest that you use Nastran in CAD if you are going to do FEA using Solidworks as the module provided with Solidworks do not always produce accurate results

Regards,

There’s a great plugin for simulink that automatically creates models from Inventor or Solidworks, Here’s how to do it :
https://www.mathworks.com/help/physmod/smlink/ug/export-robot-assembly-from-autodesk-inventor-software.html

Are we talking about the solidworks threads library?

If so you might be missing some of the library files, that can be downloaded

Please clarify your question

First off let’s clear the misconception that AutoCAD is the same as Solidworks

Solidworks is used to model solid part files for mechanical design purposes  it understands solids & materials it understands that it can break and that these parts need to be assembled together, etc…

AutoCAD is a general drawing & Drafting Tool whatever what things are you trying to draw or draft, it can be used in anything from Mechanical Drawing to Plumbing Pipes Drawing to HVAC and Fire Fighting to even bridges or structures; because it basically understand lines and circles when it comes to drafting AutoCAD is the king of Drafting

Gstarcad is much like AutoCAD, it just has a different interface with different functionality

However if you want to go for what’s available and cheap why not go for Free & Open source software?

Here’s a list of what’s out there:

DraftSight

Trimble SketchUp

FreeCAD

LibreCAD