Try AutoCAD LT free for 30 days 

Autodesk provides download and install instructions both for individuals and for administrators. Individuals should sign into their Autodesk Account or education site. Find your product and click View Downloads. Select the version, platform and language and then select a download method. For more information, visit the Autodesk Knowledge Network.

Autodesk trials offer the chance to explore full capabilities of the latest software for a limited term (typically 30 days). To cancel a free trial, turn off automatic renewal before the trial period ends. If a payment method was not required at the start of the trial, it'll expire automatically. 

If your trial expires, you cannot extend the trial period. For short-term needs, you can purchase a monthly subscription and turn off automatic renewal (to limit the length of the paid subscription to one month only) or purchase Flex tokens for a flexible pay-as-you-go plan.