I’ve started building a smaller version of The Spice Must Flow to use as a coffee table. I haven’t chosen a name for it yet. This one is 120cm long x 83 cm wide, with glass top. The mechanism is being kept near the floor so the top can be higher above it and hopefully not require as frequent cleaning as the original. I am using the same 45 mm square t-slot for the frames.
I have built the top cover and XY frame, and mounted the electronics. I am in the process of remaking the cables to the motors (MUCH shorter now) and redesigning the Y axis bearing/pulley blocks to be similar but a little less fragile than the previous generation. I printed one of them and will print the other tonight. The new bearing block is printed in two pieces without support material and clamps down on the 16 mm square tube X axis. I hope to have the mechanism up and running by this weekend, and then I’ll start on the new sandbox design.
One thing I’m currently stuck on is making the electrical connections to the LED strips in the sandbox. I’m going to try to set it up so that there will be contacts on the frame and on the sandbox and when you set the sandbox on the frame the connections will be made automatically- no loose cables, no connectors. I’m thinking of using magnets mounted on springs to allow some lateral error in the placement and the connections will find each other without any manual intervention.