Torpedo Toy - (75%Toypedo)

thingiverse

One of my smaller nephews had issues getting the standard issue toypedo to work for him, so I made some scale versions instead. (full size <a href="https://www.thingiverse.com/thing:6157687">here</a>) When filled, they have about 5-6% negative buoyancy, so they will eventually sink. You need to submerge the torpedoes underwater, and hold them while the air bubbles out so that they are <i>totally</i> flooded. Currently their maximum range is about 4m, though I think a light coat of plasti-dip might improve performance. Honestly, I kind of prefer that they stall and sink like they do now: easier to catch! First version works better than Rev 1, Rev 2 is a marriage of both worlds and is currently untested. Check out my other cool project here, for cool cups, mugs, & more: <a href="https://WeCanDrinkTogether.com/">WeCanDrinkTogether.com</a>. Yes, it has some free stuff, lol. <hr/> <h1>Update - Rev 2</h1> Rev 2 works really well at 0.16mm layer thickness! <h1>Update - Rev 3</h1> Rev 3 is alright, might not be better than Rev 2. <h1>Review</h1> In reviewing the "quickie" buoyancy spreadsheet.... All I can say is <i>"What was I on?!"</i> It's got all the details you need to do the buoyancy, but I can tell I wasn't really paying attention when I did it.... Approach with caution, lol. <h1>Drawings posted!</h1> I put up the drawings in soliddraw, png, and PDF. Not exactly what you need for a full-redo, but it does show all the critical dimensions: perfect for Fluid Dynamics/Physics education!