New design
BOT ChainPreviews, changes, questions and reading an attached file are free. Generating the full files for a version uses credits, from 2 on Engine up to 40 on Advanced. Check dimensions before you manufacture.
Sign in to open a chat workspace for CAD. Describe a part and change it as many times as you like for free. Generate the final files only when it looks right, then anchor it on BOT Chain.