The glider prints in two halfs, that way you dont need supports.
For print settings I used the standard 0.1mm profile and increased support to 25%. That way the balance front to back is pretty spot on. You will probably also want to turn down/off the Elefantfoot compensation, so there is no gap down the middle.
For assambly there are two holes in each part, where you can stick in a pieces of filament (about 5mm long) for alignment.
The original glider is a Twin Astir Trainer and I used a scale of 1:100
The author hasn't provided the model origin yet.