Onshape (onshape.com) is generally a good starting point - its cloud based, so the usual PC performance requirement issues don't apply. Free accounts require yo

Onshape (onshape.com) is generally a good starting point - its cloud based, so the usual PC performance requirement issues don't apply. Free accounts require you to have publicly viewable documents, so if you're working on something for profit, you might want to splurge for the paid version after you get up to speed.