This Is my First parametric model. My First try at openscad And I discovered that it's really easy. It takes less time to sketch and create code than to actually model an object. I always thought I couldn't do it, and now I'm back... the learning curve is really low and everything is easy to do. I think I'll be working a lot with parametric models from now on!
I recommend you try it... you might be pleasantly surprised!
Link for reference. This is a free template, not an ad. You can also see the code here.