Why not build a MINI Miss Riley?!?
I enjoyed designing and printing my Miss Riley from Ky Michaelson's Rocksim plans so much that I thought that, if scaled down a bit, it would be a nice desktop display item for my daughter. My Miss Riley is 58 inches tall (from nose to the base of the nozzle): OpenRocket lets you use the Edit/Scale command to resize any rocket by a percentage or to a specific diameter. Choosing the smallest size body tube I have, the BT-20, I resized Miss Riley to a MINI Miss Riley that is 16 1/4 inches long and takes B and C engines instead of 29 mm F engines (Ky's was originally designed for 38 mm engines). Here's my rescaled MINI: Because the body is the size of the engines I'll use, I edited the fins to remove the fin tabs. It took a couple of tries to export parts and print, since resizing led to very thin parts (~0.68 mm). I manually resized the nose cone, fins and nozzle to 1.5 mm then re-exported then from OpenRocket for printing. The nose cone required some ...