3.Tools-and-materials/3.CAD-model.md

 ## CAD files and repository
 
-The windkit's CAD model is build entirely with FreeCAD.  [FreeCAD](https://www.freecad.org/) is an open source 3D parametric modeller. We have released the CAD model as FCStd (FreeCAD) and STEP (ISO standard), to get it you can either download or clone the git repository.
+The windkit's CAD model is built entirely with FreeCAD.  [FreeCAD](https://www.freecad.org/) is an open source 3D parametric modeller. We have released the CAD model as FCStd (FreeCAD) and STEP (ISO standard). You can either download or clone the git repository to get the files.
 
 [Download windkit v1.1](https://git.erni-kollektiv.org/erni/windkit/-/archive/v1.1/windkit-v1.1.zip)
 
@@ -14,16 +14,16 @@ We also provide 2D DXF files for all components that need to be laser cutted fro
 
 ## Software Requirements
 
-To use the CAD model as a reference during assembly, we recommend FreeCAD or CAD Assistant (with the STEP file). [CAD Assistant](https://www.opencascade.com/products/cad-assistant/) is a freeware CAD viewer for various formats and is a multi-platform.
+To use the CAD model as a reference during assembly, we recommend FreeCAD or CAD Assistant (with the STEP file). [CAD Assistant](https://www.opencascade.com/products/cad-assistant/) is a freeware CAD viewer for various formats and is availabe on multiple platforms.
 
-If you want to contribute to this project, test or modify the CAD model, we recommend the following FreeCAD version and workbenches. [FreeCAD (Link branch by realthunder)](https://github.com/realthunder/FreeCAD/releases/)
-For the assembly process we've used the Assembly3 workbench. The workbench is bundled in the fork mentioned above, no additional installation is required. Additionally we use [Fasteners WB](https://github.com/shaise/FreeCAD_FastenersWB/releases/tag/last) for fastener groups, this workbench can be installed separately via the Addon Manager in FreeCAD. To get to know Assembly3, have a look at the [Assembly3 section of the FreeCAD Wiki](https://wiki.freecadweb.org/Assembly3_Workbench) and [realthunder's old FreeCAD Fork Wiki](https://github.com/realthunder/FreeCAD_assembly3/wiki).
+If you want to contribute to this project, test or modify the CAD model, we recommend the following FreeCAD version and workbenches [FreeCAD (Link branch by realthunder)](https://github.com/realthunder/FreeCAD/releases/).
+For the assembly process we've used the Assembly3 workbench. The workbench is bundled in the fork mentioned above, no additional installation is required. Additionally we use [Fasteners WB](https://github.com/shaise/FreeCAD_FastenersWB/releases/tag/last) for fastener groups. This workbench can be installed separately via the Addon Manager in FreeCAD. To get to know Assembly3, have a look at the [Assembly3 section of the FreeCAD Wiki](https://wiki.freecadweb.org/Assembly3_Workbench) and [realthunder's old FreeCAD Fork Wiki](https://github.com/realthunder/FreeCAD_assembly3/wiki).
 
-To inspect the DXF files we recommend [QCAD](https://www.qcad.org) or [LibreCAD](https://librecad.org/), both are 2D CAD modellers.
+To inspect the DXF files we recommend [QCAD](https://www.qcad.org) or [LibreCAD](https://librecad.org/). Both are 2D CAD modellers.
 
 ## Structure of the CAD model
 
-The CAD is organised into sub-assemblies and stored in their respective folders. The sub-assemblies are shown in the image below.
+The CAD is organised into sub-assemblies and these are stored in their respective folders. The sub-assemblies are shown in the image below.
 
 ![](https://git.erni-kollektiv.org/erni/windkit/-/raw/master/Images/AssemblyOverview.png)