Torah Tools Print

Mystery drawing disc

A spinning stencil to 3D print. A pin holds it to the paper. Children turn it to 1, 2, 3… and colour the slots for each number. When they lift it, the picture is on the paper.

1. Choose a picture

2. Check the picture

This is what the children will colour. Each colour is one number on the disc: 14 numbers, 19 slots.

170 mm fits most printers.

The widest marker the children will use.

Drawing area: 144 mm across. The disc is 2 mm thick with numbers raised 0.6 mm.

How to use it

In class

You need paper, cardboard or cork underneath, a push pin, and markers no wider than the marker tip you chose.

  1. Put the paper on the cardboard, lay the disc on top and push the pin through the small centre hole.
  2. Turn the disc so START is at the top. Make a small pencil mark on the paper at the START triangle. The mark stays put.
  3. Colour every slot that has a 1 next to it.
  4. Turn the disc to the left until the 2 on the rim is at your mark. Colour every slot marked 2.
  5. Keep going to the last number, always turning the same way.
  6. Lift the disc.

Printing

  • PLA, 0.2 mm layers, flat on the bed, no supports.
  • One colour: print “Disc, one colour”. For coloured numbers, add a filament change at the first layer above the disc (the + on your slicer’s layer slider).
  • Two colours with an AMS or MMU: load “Disc base” and “Numbers” together. When the slicer asks, choose to load them as one object with several parts, then give the numbers their own colour.