Ballista (crossbow) printable in one piece

cults3d

This is my mini Ballista, everything printed in place. The bow shoots arrows smoothly through the room and beyond without a hitch. I used four layers of cotton sewing thread as the bowstring for this model. To load the arrow with ease, follow the method shown in the video. I've tested this design using both PETG and PLA filaments, achieving a 90% infill rate and a layer height of 0.2mm. Printing time under these conditions is approximately two hours. You can view the print and test video at https://youtu.be/olYlUPdZJGM.