A rolling base for the Goal Zero Lithium 1400 (and, probably, 3000) for indoor use. This model is just some corner supports. You need to print four of these, then use

• 2x 5cm and 2x 10cm OpenBeam (or MakerBeam) 1515 extrusions
• 4x casters with M10 threaded rods
• 4x M10 washers
• 4x M10 nuts
• 8x M3 x 10 bolts (two per corner, from inside corner)
• 8x M3 x 8 bolts (two per corner, from bottom)
• 8x M3 x 6 bolts (two per corner, from top)
• 24x M3 nuts (6 per corner; two inside, two top, two bottom)
• 8x 3mm x 30mm felt pads (I used two 1.5mm pads back to back)

to complete the build.