Downloaded cad file from German cargo bike forum, sent to laser cutters in Shoreditch and they cut the pieces to size for £168 including the wood. The box is push fit together pinned with screws, but I fixed the bottom front and back and then used a ratchet strap threaded through to keep the side panels on, the design also includes panels to make kid seats.
Made base board out of HDPE sheet with a jigsaw, you could also use ply, friendly forumer 3d printed these awesome brackets for side panels and I just cut a spare bit of ply to size for the sides.
I've done two different boxes:
Downloaded cad file from German cargo bike forum, sent to laser cutters in Shoreditch and they cut the pieces to size for £168 including the wood. The box is push fit together pinned with screws, but I fixed the bottom front and back and then used a ratchet strap threaded through to keep the side panels on, the design also includes panels to make kid seats.
Made base board out of HDPE sheet with a jigsaw, you could also use ply, friendly forumer 3d printed these awesome brackets for side panels and I just cut a spare bit of ply to size for the sides.
Green bike is option 1, pink bike is option 2.