This is part of MaRRVE (Manned and Remote Robotic Vehicular Exoskeleton) https://www.youtube.com/watch?v=7Wg3HUAuU8g This is the matching cover-plate to p#0001. This will be cast into aluminum using the lost pla casting method. Be sure to visit the TechTazed youTube channel (https://www.youtube.com/user/tech3158) and subscribe for updates. MaRRVE once complete is to be used in disaster relief scenarios. Feel free to offer advice ask questions or get involved with this in this lifesaving endeavor.Print in pla with a infill of less than 30% and make sure the outer shell is water tight fill any stop any leaks with glue. for info on casting and what to do afterward visit my youTube page as it will be updated shortly. https://www.youtube.com/user/tech3158