My name is Alan Johnstone and I live in South Africa. I am glad to have joined the slingshot forum. I have been working on a 3d printed compound bow legolas since August 2019. My son and I are now in testing phase, looking for failures in the parts. We are making a cheap crony to test the speed of the bolts and to determine the energy. The main purpose of this legolas is self defence. I will start a new topic here soon and provide some pictures.