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Standards in our 2D & 3D CAD projects

papacad.com offers professional CAD projects prepared in leading CAD programs such as Inventor 2014 and Solid Works 2017. We design CAD projects in a team of experienced design engineers. Who attach significant importance to the quality and correctness of 3D models and 2D CAD flat drawings. 2D CAD DWG executive documentation is created on the basis of professional advanced models and 3D assemblies. All drawings are created solely on their basis. Each CAD design is unique and reflects contemporary design trends in mechanics. We use standard elements according to ISO and EN standards as: electric engines, pneumatic and hydraulic actuators and fasteners.

Our CAD projects are available as a purchase and free download. Our aim is to create with the same attention to detail and quality level for paid and free products.

Complete CAD designs, 2D drawing documentations or CAD 3D models that you can download are always packed with ZIP (available as a component of most operating systems.) If you find this lack, you can download it for free: Winzip , 7Zip, WinRAR.

Inside every ZIP package with a CAD design there are complete set of files of a given project.

This means that the ZIP package with the documentation that you downloaded contains complete set of components chosen type of documentation.

A single CAD design is placed in a catalog with a name describing: project theme, documentation type (Inventor 3D & 2D 2014, AutoCAD Mechanical 2004, 3D STEP, etc.).

Within the directories there is a structure for identifying directories and CAD files.

The structure of CAD design is as follows:

 

When you open the Inventor .ipj project file, you will see an identical structure as in the operating system browser:

 

CAD standards for CAD designs

 

The main assembly and subassembly also have a specific hierarchy, which is result from the construction of the device and the importance of the subassemblies in the structure:

 

The main assembly and subassembly also have a specific hierarchy resulting from the construction of the device and the importance of the subassemblies in the structure.

 

When any 0f the 3D CAD projects is opening by Inventor , you will see a tree manager on the left, with the structure of the project and the names of the files. These names closely match the file names in the project directories stored on the disk. Each CAD file in our CAD projects has a strictly established name and location that uniquely identifies it in the project structure:

 

CAD files structure in project

 

3D layouts have a structured naming and physical structure. This makes it easy for anyone to understand the design, attachments, dependencies and location.

 

DWG download CAD files

 

Inventor DWG and AutoCAD DWG 2D CAD drawings has the same naming conventions as 3D models related to CAD files naming. Keeping proper CAD files and CAD drawings names allows to maintain clarity. Increases the speed of finding the right files, CAD drawings, and keeps working on the project “in check”:

 

 2D drawings files

 

3D parts and 2D CAD drawings names in BOM tables also have an identical hierarchy. CAD drawings nubering is compliant with ISO standards and factory standards worldwide. Every engineer familiar with the naming and numbering method of technical drawings reads our 2D working documentation without any problems:

 

2D drawings DWG

The 2D CAD drawing table contains information about:

  • the name of the CAD project,
  • name of the parent assembly,
  • drawing number,
  • change number,
  • sheet size,
  • number of sheets of one CAD drawing,
  • scale,
  • CAD designer.
  • producer,
  • weight,
  • designing date,
  • projection method (European, US)

BOM list contains:

  • name of part,
  • CAD drawing number or standard,
  • item number,
  • quantity,
  • change number,
  • material,
  • weight, and
  • comments.

 

BOM 2D drawing stadnards

In the 2D CAD assembly drawings, 3D  drawings and working DWG drawings, we provide all the information necessary for the assembly and produce process:

  • numbering,
  • fittings,
  • tolerances,
  • deviations,
  • production conditions,
  • production methods,
  • technological annotations, etc.

drawing annotations stadnards

General standards of 3D and 2D CAD projects:

3D CAD design, 3D models and assemblies standards:

  • Global Unit System – SI (metric)
  • Mechanical projects guideline – European Machinery Directive 2006/42 / EC
  • Selection of structural components – calculations of strength, performance and durability (Directive 2006/42 / EC)
  • Components  selected – European standards EN – ISO (European producers database or global)
  • Standarized parts – EN ISO standard – inside project folder
  • 3D parts, sufraces – NURBS

Technical 2D drawings standards:

  • Projection of 2D drawings – european method  EN ISO 5456-2: 2002
  • Dimensioning, general rules – ISO 128
  • 2D documentation – Inventor DWG 2014
  • 2D export : AutoCAD 2004 DWG and PDF

NOTE: Files with appropriate calculations may not be in each  projects!

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