The landing is unchanged. Edit the commands. If the draw fails, the film returns.

waiting

#dnahelix def helix r d do fn angle 180 rt 90 jmp r rt -90 as helix do loop 180 do rt -angle/2 fw 2*r*sin[angle/2] jmp -2*r*sin[angle/2] rt angle/2 fn x 7 loop x do jmp 2*pi*r/360 rt -1 end dive 90 fw d dive -90 wait 0.1 end end rt -90 jmp r rt 90 end dive -90 roll 45 wait 2 hd helix 100 15