Follow these steps

Create a new Gmail account in the format name.makerble@gmail.com - this is because you will need to connect this account to Makerble using our Google integration
Sign up on Makerble PRODUCTION using your new Gmail account on www.makerble.com/personal-sign-up
Create an Organisation (use the charitable organisation that you came up with in the Design1 exercise https://trello.com/c/C6WXYxyI/354-design-1-create-your-own-measure-the-difference-plan-1-hour)
Add your user profile as a comment to this card
Create two projects (use the projects that you came up with in the Design1 exercise https://trello.com/c/C6WXYxyI/354-design-1-create-your-own-measure-the-difference-plan-1-hour
Set the privacy of your projects to Everyone: click the padlock button at the top of the project page and set it to Everyone
Copy the url of your project and paste it as a comment in the trello card

How to video