Here's a couple of pictures of my SB13 build. I will start by saying the clock design and associated STL files are fantastic....will done Steve! All the parts were printed w/o issue....the "no support required" is awesome. The clock was printed with a Bambu X1 Carbon, the files were sliced and printed from inside the Bambu environment using the recommended setting, all the parts printed perfectly. I used Polymaker PolyTerra PLA for the major parts, for the gears I used Inland (Microcenter) Gold\Gray silk PLA. I believe PolyMaker and/or eSUN makes filament for Microcenter. I had a couple of friction issues that required some attention, but after a couple of tweaks, the clock has been running for about 48hrs w/o issue.