Pay attention ! This modification is just to decrease size, the classic dipole has better radiation quality
download stl model from repository
print the template as on picture without support
you can use the standard 915Mhz antenna with extended wires with 194mm of every side as on picture. The wire diameter - 0.8 -1.3 mm with isolation.
According to the first picture make 3 turns
Total dipole length should be about 194mm