I started trying to play around with some CAD programs last year...\nhttps:\/\/forums.audioholics.com\/forums\/threads\/any-freecad-users-out-there.123024\/\n...but was quickly stymied. I started with FreeCAD which was highly recommended online only to find that learning it was a bit on the challenging side. I've had some previous CAD and Drafting experience which I thought should help me along. Sadly, no, and that discouraged me and I put off playing and learning for a while too long.\nNow that I'm closer still to my planned Subwoofer build, I started feeling the urgency again. This time, I decided to look again at SketchUp. I had been turned off initially by the period that it was a Google product. And also by the cost if I wanted full functionality. Being the silly human I am, I didn't really research the option very well as it stopped being a Google property years ago, and the Free online App is quite useful.\nI don't know yet if it will allow me to create a file compatible for CNC shops, but that is a problem I can solve another day.\nIn the meantime, without spending any time learning anything, I was able to start creating the simple panels that would make up a Speaker Cabinet. Over most of the afternoon, I stumbled my way through and successfully modeled everything for a simple Subwoofer Cabinet.\nThat night, I watched a few videos and learned some things I did wrong, and the next day I went back and started anew. This time I modeled a simple Subwoofer Cabinet in about 2 hours.\nI have not included any bracing yet as I wanted to keep this pretty simple and just look at the panels I would likely handle and cut manually.\n\nThis design is based on the SI SQL-15 Driver. Cabinet is ~4cu.ft internal volume measuring 16x22.5x18". It is not my intention to build this design but I had to start playing somewhere.