Model Builder

Model Builder is a useful tool for creating structures, items, or other things that you wish to load ingame. This is very useful for vehicles and prefab structures, as it allows you to load the object in rather than needing to construct it.

How to use
Once at the Model Builder place page, click the three dots next to the name, and then "Edit". This will open roblox studio. Simply drag parts into the build area to build your creation (be sure to remove them from the folder first.)

After you're done building, click "play". If done correctly, a notification should pop up instructing you to open the Output window. Do this, and copy the large block of text.

Tips

 * You can (or may need to) use pastebin to host your model's code. This can enable you to load massive models, as the roblox textbox limit is 16,000 characters, which is often surpassed by very large or expensive models.
 * To change the material a template loads in as, edit its "SDATA" value to whatever material you wish it to be. (NOTE: Spelling counts!) SDATA is also found under certain customization parts for other purposes, such as antenna IDs, polysilicon modes, and more.
 * It can be useful to save your studio files for future use, as you don't want to lose your creations.