Need to have fasteners or other small parts handy on the workbench? These little bins can hold 100 M3 x 10mm bolts  and the rack of eight bins fits easily on a workbench. I find it less messy than dealing with drawers of parts all over the bench.

Only three parts are needed for the basic two row model; the uprights are a jam fit into the pockets on the racks and the bins nest in pockets on the racks. Two extras have been provided if you want to make the rack higher than two levels.

There are provisions for M3 heatset inserts on the pockets in case you want to build it taller or change the spacing of the rows. The uprights can be replaced by square brass tubes or even wood.

For the three or more row version you can use the new Sorting_Tray_Rack_03 and either long or short uprights. The pockets are tall enough tall enough to hold lower and upper uprights. 

I used PLA at 50% fill for all parts. No support is needed. 

For the basic version, Print: 

8: bins

2: racks

5: uprights