Jack, thanks. I’ve been designing semiconductor test hardware for quite a while, now retired and trying to keep the skill up. I used solidworks since 97 but can’t afford it for use at home. A few years ago I found an “app” called Shapr3D that enables solid modeling on the iPad. It’s no SW but it’s decent and they are continually improving it, like SW did in the early days. The texturing is an artifact of the printer, in some cases it looks kind of cool and in others it’s not desirable. I like how it looks on this part. There are a lot of parameters in the slicing software you can tweak to get better surface finishes but it’s usually a trade off between quality and time. Which brings me to your question of how long it took to print, this one was about 4 hours.

Cheers