Star Trek The Next Generation Hypospray Prop

thingiverse

This device connects a sound board to a main button for hypospray sounds. The board's edges will require some trimming and wires may need to be re-routed or new ones soldered in to keep its profile slim. I'm trying to rebuild mine with a board from talkingproducts.com: https://www.talkingproducts.com/products/mp3-sound-chip-module-4mb The board will fit into the body diagonally. I didn't measure the wire used, so mine has a tighter fit with all the slack clumped up. All parts can be assembled without glue except for the buttons - I used sugru for the smaller button against its backing panel (smaller button has click in/click release action). If you don't want the buttons to press in, you can just glue them. All threaded parts are M20 compatible. Demo of print with sound board: https://www.youtube.com/watch?v=PBd0jTCIozM Assembled pyramid section: https://youtu.be/ze3CLa-kbG4 I soldered jumper wire to the board and connected it to the main button. I also soldered headers to the speaker. I placed one of each in the pyramid corners behind the main button, but only connected wires to one of them: https://www.adafruit.com/product/3101 A click on/off toggle button for the secondary one is here: https://www.adafruit.com/product/3870 But I ended up using this having shaved down the right side until I started to see the internal metal bar: https://www.microcenter.com/product/497123/leo-sales-ltd-mini-button-yellow-switch---4-pack The speaker used can be found at digikey: https://www.digikey.com/product-detail/en/cui-devices/CLS0201MP/102-1542-ND/1630856 A battery was taken from an 8bitDo kit and was originally intended to make a psx classic controller wireless. Any 100-150mah battery should work as long as it is not over 25mm wide. The battery I used has been able to sit idle for months and still work - you can solder the battery wires to the board and recharge it from the micro usb port. The body lid can be re-opened when the battery needs to charge since no glue is used to secure it. A sound file was downloaded from trekcore.com. I had to save their file in a different format to upload to the sound board which I did using audacity and copy/paste from within file explorer. Those files are on my github: https://github.com/lambtor/Hypospray This model is 10% larger than the scale recommended in the original that this was remixed from. That was done to enable the body to allow fit of a standard insulin vial (u/100). Do not go out and buy an insulin vial just for this project - ask people you know and I'm sure you'll eventually find an acquaintance who can give you an empty one. I have not printed the last revision made to the body lid. It should cause the screw-in parts to line up but I haven't verified it.