Window Seed Tray Stack

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Gardeners are crowding their window sills at this time of the year, yet space is limited. This stacking system can go over a metre high to get your seedlings close to the sunlight while staying warm in the house. There are optional wheels to help manoeuvre the stacks and clips to keep them together. Each stack will clip to the one at its side. A top space is available also. The parts: shelf, tray, base, top, clip, wheel and hub parts. You can use all these, some or just the shelf and tray units. There are two wheel options, with chamfered edges and with rounded edges. Whichever prints best. I managed to get some scenic shots, it nearly always adds some life to the subject. The top of the tray is approximately 142mm x 116mm internally, the bottom is 135mm x 105mm. The internal height is 38mm. The holes for the clips and wheels fit M4 bolts. In the photos bolts and countersunk M4 screws are used. These work fine though the model parts weren't designed for countersunk screws.