i couldnt quite find parts trays i liked so i designed my own stackable set. still a work in progress so let me know if anyone wants extras added or modifications made

initial size is 160mm square with 2mm thick sides, 5mm radius corners

UPDATE 11/10
realised after printing 8 compartment shallow that 1 of the lines was off resulting in 4 compartments the intended size, 2 slightly narrow and 2 slightly wide. its off by a couple of mm so i have corrected it but left that file available as 160mm_8_compartmant_shallow_mixed_sizes.
the 16 compartment has the same issue and has also been fixed. old file name is now
160mm_16_compartmant_shallow_mixed_sizes.

have also added some extra compartment configurations (6 and 12 both with a mix of sizes)

i printed the 8 compartment tray myself and will upload pics (i hope the pics turn out ok as i printed in yellow abs) i had some minor curling issues but not enough to cause any issues with the tray (my current printbed is alloy and is slightly bowed)