printable without supports. may need to re-drill the circuit board mounting screw holes, as they are only 1mm diameter.
The STP file contains separate sub objects which are not joined to each other. you will need to perform a Boolean Union to join them properly for printing. This is to allow for easier modification on your end, should you want a thicker ring, etc.
No supports required, integral supports included. 0.20mm gap between sacrificial models and quad frame.
Legs require glue, battery holder does not.
Clip battery holders in, then carefully add legs. legs are weak to shear force, but strong to bending in the arc direction. legs are not integral to design.
The author marked this model as their own original creation.