/sci/ - Science & Math

>>11130356
>1. They MUST be stored loaded and heavy
>2. they're enormous fireworks that will explode at a moment's notice

but that's the point of 3D printing.. all you would have to do is make the nozzle and then set up the printer to build the fuel column and then you could remotely place the payload on top


https://newatlas.com/rci-3d-printed-fuel-patent/47356/
>that feel when you realize your idea is already patented


https://patents.justia.com/patent/10286599
>A hybrid rocket solid fuel grain having a cylindrical shape and defining a center port is additive manufactured from a compound of thermoplastic fuel and passivated nanocomposite aluminum additive. The fuel grain comprises a stack of fused layers, each layer formed as a plurality of fused abutting concentric circular beaded structures arrayed to define a center port. During operation, an oxidizer is introduced along the center port, with combustion occurring along the exposed port wall. Each circular beaded structure defines geometry that increases the surface area available for combustion. As each layer ablates the next abutting layer, exhibiting a similar geometry, is revealed, undergoes a gas phase change, and ablates. This process repeats and persists until oxidizer flow is terminated or the fuel grain material is exhausted. To safely achieve this construction, a fused deposition additive manufacturing apparatus, modified to shield the nanocomposite material from the atmosphere, is used.

GOD BLESS AMERICA LAND OF THE FREE

why cant someone just pour the fuel grain on the launch pad.. similar to injection molding or something?

or i guess you could just figure out some convoluted way of avoiding infringement by changing one or more items like with what they do with aircraft subsystems.. if im not mistaken the door lock on the DC-10 was faulty because they couldnt use the more established patented design