So, I've been stalled out due to lack of motivation and a broken bearing carrier on my printer. This caused the Y axis to be extremely inconsistent, which meant circles came out looking more oval than I'd like.

Apparently, this is common with the DaVinci printers. Instead of ordering parts, I got bored and made one of my own. A few clicks and I had a replacement drawn up in SW.

Seeing as it'd be difficult to print one with the broken printer, I turned to my CNC mill. However, I didn't have any blocks of plastic to mill it from. So... I melted down some old filament I wasn't using.

After I had a good sized chunk it was just a matter of milling it.

... and installing it.

Now, my printer is back to its old barely acceptable prints! I'm working on a second rocket design now with plans for a throw-away 3D printed motor. More updates to come.