Gridfinity Storage Box 6x6, 4 Quarters for Small printers

I wanted a couple of Pred's 6x6 boxes one in 6U height and the other in 12U, but I wanted to print them on my Prusa mini. Hunting around I saw Blakster97 had already sliced up a box and come up with a rather nice method to re-join the pieces. I just extended this method to work for 4 quarters. When joined togther you can see the joins on the sides and rear as well as the outline of the wall pockets (see rear picture). I know this may bug some people so wanted to be upfront about it rather than disappoint. I am part of that it bugs me group but I'd rather have the box with those features than no box :).

Printing

Printing I tried to print these using Arachne (Perimeter generator) but everytime I tried the very small pockets would fail, I tried redesigning the pockets and tabs but had no success. So these are best printed using Classic. If using Prusaslicer its under Print Settings >> Layers and perimeters >> Advanced >> Perimeter generator. Other than that I used the standard 0.20mm Structual profile, I did up perimeters to 3 and infil to 20%. the base and lid were also done at 0.20mm, I believe Pred recommends 0.30mm for base and Lid but I wanted that extra resolution for the joiners so theses take longer to print.

I used paint on supports on the locking protrusions, the handle pin holes, the hinge clip holes (those were fiddly to paint) and the recess on the base quarters in each corner. The hinges I printed vertically with supports (basically the orientation I uploaded them). Dont use supports in the wall slots they are not fun to get out and not needed in the bar holes. 

Parts needed

• 1 of each of Base FR, FL, RR and RL

• 1 of each of Lid FR, FL, RR and RL

• 12 large base joiner bars

• 1 x large base cross bar

• 12 small lid joiner bars (print 2 extras you might damage a few dry assembling)

• 1 x small lid cross bar

• 6 x latches (I've included the easy open latches)

• 1 x handle and 2 pins

• 2 x hinges (I used the M3 bolt hinges I had no luck with the print in place ones), mirror one (Z axis) if like me it bugs you to have to mount 1 hinge upside down so both bolt ends point towards each other.

• 2 x 30mm M3 Hex Bolts and Nuts for the above hinges.

• 1 x name plate (Ive slightly thickend the name plate so its tighter fit)

• 2 Part Epoxy Glue

• (Optional) 36  interference fit fillers if you want them to fill in your lid like mine (avaliable here)

Assembly

The 6U and 12U assemble the same the 12U just has two wall tabs on each side not 1 tab. On the 6U I made each base quadrant unique so its very difficult to glue the wrong quadrant togther. However I made this change as I designed the 12U first and nearly glued the wrong base quadrants up so be careful on the 12U. I dont like to change models once I've printed and confirmed everything works so I wont adjust the 12U's tabs unless I print another one.

I found 2 part 5min epoxy glue best, I think superglue will just setup to fast you do need time to align tabs and insert them. Test fit everything before gluing up, I dry assembled both mine before gluing up to ensure no hole had some ragged filament which prevented inserting parts or the bars were slightly to big. I've attached an assembly PDF for the order I assembled the Base and Lid parts in for reference if needed.

Filament Used

6U box just over 500grams or 1/2 a spool

12U box just over 750grams or 3/4 of a spool