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Summary of Contents for FabLab PHABLABS 4.0 Laser Labyrinth
- Page 1 Photonics Workshop Laser Labyrinth...
- Page 2 You are responsible for independently verifying the information. S2i and Fablab Karlsruhe cannot be held liable for any loss or damage that may arise di- rectly or indirectly from the use of or reliance on the information and/or products provid- ed.
- Page 3 ROPOERTIES OF THIS WORKSHOP HOTONICS WORKSHOP ASER ABYRINTH FOR INSTRUCTORS UMMARY The ‘laser labyrinth’ is a logic maze game that teaches STEM skills. The game requires you to use mirrors, beam-splitters and brainpower to direct the laser through a series of mind-challenging mazes and light up the target. In this workshop the participants will build a version of the laser labyrinth and of course test it in the end.
- Page 4 ACKGROUND Laser What do a CD player, a laser printer and a bar code scanner have in common? Exactly - in all these devices a laser is used. Lasers are an essential part of our day-to-day life and are used in many different devices and places, especially in the industry or in medical devices.
- Page 5 The figure above illustrates this principle: The ray of light approaching the mirror is known as the incident ray. When the incident ray strikes the mirror, it will bounce off the mirror. The ray of light that leaves the mirror is known as the reflected ray. The normal line divides the angle between the incident ray and the reflected ray into two equal angles.
- Page 6 1x Target Receives the laser (the goal of the game is to direct the laser beam through the labyrinth in order to hit the target) 6x Mirror Reflects the laser. The 6 playing pieces differ in the angle, the laser beam can pass through.
- Page 7 Direction Blocker II: The most important playing piece of the laser labyrinth is the starting figure providing the laser beam. By pushing the button, inserted into one side wall of the playing piece, the laser beam is engaged. Another important playing piece is the target, which the laser beam has to hit. In order to light up the target you have to arrange the other playing pieces, such as beam splitters or mirrors, in a specific way onto the game board.
- Page 8 Safety A game with lasers? Is that safe for kids? In this case yes, because several safety measures have been made. Most importantly: so called “eye safe” lasers will be used as laser diodes. In order to create additional safety, the game figures are only supplied with power when they are inserted into the playing cells, thanks to a reed switch integrated in the starting figure.
- Page 9 10x10mm² 6 pieces mirror foil semitransperent Each set requires two pieces of 2x1cm² foil. block magnet 3 mm³ Other parts – standard available in Fablab part quantity wood glue glue sticks for hot melt glue gun rubber bands...
- Page 10 screws nuts Tools Laser Cutter 3D printer Table saw (or something similar in order to cut the mirrors) Hot melt glue gun Soldering iron and solder Diagonal pliers, possibly wire stripper Rubber mallet (optional) ...
- Page 11 REPARATIONS UT OUT THE DIFFERENT PARTS OF THE GAME WITH A LASER CUTTER Please note: Cutting the individual game components with the laser cutter takes about 20 minutes for one set. Therefore, it is strongly recommended to cut out all the components for the workshop participants before the workshop.
- Page 12 together. The corresponding components of the different playing pieces are described in the instructions below and in the playing piece guide on page 5-7. PRINT A SIDE WALL FOR THE TARTING IGURE For the Starting figure a 3D printed side wall is needed. Print these side walls according to the details provided to you online.
- Page 13 ONSTRUCTION OF THE GAME BOARD AND THE PLAYING PIECES 1: B UILDING THE GAME BOARD The game board consists of 2 layers and will be surrounded by six side walls. The lower field layer is a hexagon, the upper field layer is a grid of several cut out hexagons. The sidewalls of the playing field are mainly used for safety reasons when dealing with the laser.
- Page 14 1.4: After all walls have been inserted into the ground layer of the game board, the gaps between the side walls should be glued together from the outside with wood glue, to make them more stable. After the wood glue has dried in the corners, a masking tape can be glued around the side walls for additional stabilization.
- Page 15 2: A SSEMBLING THE STARTING FIGURE AND TARGET It’s recommended to put together the target block first, since it is more easy and quickly put together than the starting block. Components of the target figure: 6 long side walls with hole |one bottom | one cover marked with checkered flag 2.1:...
- Page 16 parts. General note on assembling the playing pieces (applies to all playing pieces): After each side wall has been put together to the bottom and cover of the figure, the corners of the side walls can be glued together with wood glue making the figures more stable. Remaining wood glue on the side corners can be blurred with either a finger or a damp paper towel.
- Page 17 In addition to the wooden parts, electronics parts are required for the starting figure: laser diode |battery holder | switch | magnetic switch| cable |two 3V button cells 2.4: Soldering of the electronic parts: Before soldering, the participants should be asked, if they have already soldered and how experienced they are.
- Page 18 Soldering the electronic parts of the starting figure: Solder the individual parts according to the following order: Yellow cable reed switch yellow cable button yellow cable Battery holder - pole blue cable reed switch blue cable laser diode –...
- Page 19 and place all electronic components through this hole, except the button cell holder which needs to be placed outside of the playing piece. Once the button cell holder sits on the cover plate, we can continue with fixing the reed switch into the bottom plate. 2.6: The reed switch needs to be fixed onto the slot of the bottom.
- Page 20 2.9: Insert the two nuts into the corresponding fixture of the 3D printed wall (marked with red squares in the image below). Insert the tow screws into the nuts. One screw is inserted through the hole of the side wall and the other screw is inserted through the open cover plate. This mechanism will help you to adjust the direction of your laser diode.
- Page 21 “D 3: A I” SSEMBLING THE PLAYING PIECES IRECTION BLOCKER Components of the cell blocker: 2 side walls with a hole |4 side walls without a hole |1 bottom | 1 top with the following engraving: The direction blocker is a playing piece with only one forward direction, so only two side walls with a hole are needed.
- Page 22 „ 4: A II“ SSEMBLING THE PLAYING PIECE DIRECTION BLOCKER Components of the „direction blocker“: 4 side walls with a hole | 2 side walls without holes | 1 bottom |1 cover with the following engraving: First, put two opposite sidewalls with a hole, onto the bottom (for example, side 3 and side 6). Then place the cover plate onto the side walls.
- Page 23 Components of the playing piece mirror: 2 side walls with a hole | 4 side walls without a hole | inside wall with engraved square | bottom with a slot | cover with a slot and engraved arrows | self-adhesive mirror plates Components of „mirror I“...
- Page 24 5.3: Putting together the other version of the mirror playing piece follows the same steps as just described, the components only differ in the engraving on the cover plate: „ “ 6: A SSEMBLING THE PLAYING PIECE BEAM SPLITTER Components of the beam splitter: 3 side walls without a hole | 3 side walls with a hole | inner wall with an extra large hole | bottom with a slot | cover with a slot | semi-transparent mirror foil The beam splitter splits the laser beam into two parts and emits in two different directions.
- Page 25 Collection of the different playing pieces ADJUSTMENT OF THE LASER DIODE The laser diode should be adjusted carefully, in order to make the laser beam hit the target correctly. For adjusting the laser diode, the target figure is needed. Place the starting figure with a approx. 1m distance apart each other, opposite the target figure.
- Page 26 When all magnets are properly inserted, secure the magnets with scotch tape. Then turn the game board the other way round and fix the holes, where the magnets are sitting in, on the back side with wood glue. SOLVE THE PUZZLE TASK The construction of the laser labyrinth is now completed and the participants can experiment a bit and solve puzzle tasks.
- Page 27 Fab Labs where next-generation practical skills-based learning using KETs is core but where photonics is currently lacking. www.PHABLABS.eu This workshop was set up by the Fablab Karlsruhe in close collaboration with Steinbeis Innovation gGmbH / Steinbeis-Europa-Zentrum.
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