Models Showcase

Print each layer separately. Every layer lifts off and goes back in any of four turns; change the order to reset the puzzle. Prints as shown on its floor, no supports. Stacked parts are fused into one print.

Lean it back against a wall or a stack of books at about 60 degrees, open side up, and drop a 14-16 mm marble in at the top. Prints as shown on its floor, no supports.

Use cocoa or pencil graphite as dusting powder and clear tape to lift prints. Coffee-filter strips work for the chromatography. Prints as shown on its floor, no supports.

Thread three to five fishing lines (0.3-0.8 mm) through the end holes, over the two bridges, and tie them off; tune them all to the same low note. Prints as shown on its floor, no supports. Stacked parts are fused into one print.

Drop a strong magnet into the sleeve, drag it through the dried dust, then pull the magnet out over the FIND bay and the particles fall off. Prints as shown on its floor, no supports.

Wind about 60 turns of 0.3 mm enamelled wire on the tube; use a 1N34A germanium diode, a crystal earpiece, 20 m of aerial wire and a ground to a metal water pipe. Prints as shown on its floor, no supports.

Stand the cells in a tray with an air gap underneath; water a little more often than solid pots. Prints as shown on its floor, no supports.

You need dish soap, salt, a coffee filter and ice-cold rubbing alcohol (adults handle the alcohol). Strawberries have 8 copies of each chromosome, so they give a lot of DNA. Prints as shown on its floor, no supports.

Fill the dripper (a drop of milk makes the splashes white), fill the pool to the brim, slot the phone in and film at 240 fps. Prints as shown on its floor, no supports. Stacked parts are fused into one print.

Print the tower in clear PETG so the beads show; use 8 mm beads. Shake the coins in the front tray; the back foot keeps it steady. Prints as shown on its floor, no supports.