Made these for work break room!  Incredible how adult are still actually "kids" at heart!!  I am still printing pieces to add to the collection! ; ) 

 - Those pices are just under 1 inch (20mm to be exact) - so please use caution around young childrens or dogs!! (You know those furry kids are REALLY bad and can swallow them because ... ? ... because ... ? ... I guess they just wants you to go into your bank account for the intestinal obstruction surgery!!!?) 

 I used OnShape, the free CAD, to build those.  Quite simple really!

Dimensions: 

  - cube: 20mm

  - pins: 5mm diameter x 5mm long

  - holes: 5.1mm and depth set at 5.2mm

  I used PLA since it is more accurate than PETG (which is resistant but softer, so dimensions just a tad less precises to my opinion)

You can easily use the Creality/**** Slicer (or any slicer) to change the dimensions if you want larger cubes or smaller children! 

Cheers! ; )