2-Way Stackable Puzzle Sorting Trays w/ Sloped Sides + Sliding Lid

prusaprinters

I like the NetKissa design, but I also wanted to be able to easily slide pieces out of the trays and I thought the sloping sides of the Jark3D trays was a reasonable solution for that.I imported NetKissa's .stl file into Fusion360, converted the mesh to a solid, and used the Filet function to add the slopes.  Since the slopes do encroach a little into the flat base of the tray, I experimented a little and settled on this version.The original model is 185x185mm square, by 19.5mm high.I have also printed it at 200mm square (i.e. scaled-up to 108.11%) and 225mm square (121.62%), on my CR6-SE.  As shown in the photos, all 3 sizes nest into each other, and can be stacked into the diamond tower configuration with each other.My daughter prefers the 200mm version, as the best compromise between usefulness and puzzle-table footprint.  She also asked that I add a lid, for safety when transporting the stack of trays. (She plans to add a velcro strap (like Pinocchio's book strap) to hold the stack together.)I uploaded my first-generation lid, here, but I continued to review alternative designs.  This lid must be able to flex, to pull it over the flared edges of each corner.  I printed mine in Soft PLA.  TPU or TPE would also work.  Since my lid does not stretch, I chose to split the corners with a knife, after printing.  That works, but I decided I could do better.  I eventually designed a lid that slides on/off, and latches into place.  The new lid can also be printed in regular PLA, which makes it a bit easier to make than the original lid.Since the sliding lid is actually compatible with both my trays and those of NetKissa, I have posted that lid as a separate model, here: https://www.printables.com/model/572521-sliding-lid-for-two-way-stackable-puzzle-traysNOTE: I print both tray and lid with a 0.6mm nozzle at 0.28mm layer height.  The tray prints within approx 5 hrs, the lid in about 2hrs, with these settings: - Infill = 10%. 120mm/s - Top/Bottom layers = 80mm/s - Wall Speed = 60mm/s - Initial Layer Speed = 60mm/s