Dowel Joint creates a dowel joint between two boards. This add-in allows you to specify the dimensions of the joint and quantity of dowels or spacing. It is particularly useful in woodworking.

Steps:

1. Press the "Dowel Joint" button in the "Modify" panel.
2. Select a board to cut holes for dowels.
3. Select a face to cut holes.
4. Specify the dowel diameter, hole depth, dowel length, location type, spacing or number of dowels and offsets.
5. Press the "OK" button.

Install for Windows:
The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. Or, simply double-click the downloaded installer to install the app/plugin.

Install for Mac OS:
- Download the installer from Autodesk App Store.
- Right-click on the "Downloads" folder and choose "Open in Finder".
- Right-click on the "DowelJoint_macos.pkg" -> "Open With" -> "Installer". 

Uninstall for Windows:
You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.
Unchecking "Run on Startup" causes the add-in not to be loaded in future sessions of Autodesk® Fusion 360™.
To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button.
Or, you can uninstall it from 'Control Panel/Programs and Features' (Windows 7/8.1/10), just as you would uninstall any other application from your system.

Uninstall for Mac OS:
You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.
Unchecking "Run on Startup" causes the add-in not to be loaded in future sessions of Fusion 360.
- Navigate to ./ApplicationsPlugins folder and select the app bundle you want to uninstall
- Either drag the app bundle to the Trash or right-click and select “Move to Trash”
- Right-click on the Trash-Can and select “Empty Trash”
- If you prefer keystrokes, you can also just select the app bundle and then hit Command+Delete to move the app to Trash, then empty the Trash and the app will be removed.