Unfortunately, there are no 3D model representations that posit a flat earth with a lunar eclipse without things such as an INSANELY HUGE, yet invisible object that despite being invisible, creates the shadow/eclipse of the moon.

To argue that a conspiracy that spans millennia and has absolutely not one discernable objective for the perpetrators of the conspiracy, let alone advantage and to relate it to other conspiracies that both have numerous motives and plenty of evidence from whistleblowers while the enormity of the flat earth conspiracy has no such thing and we are to believe it's been much more successful than these lesser and more regionally limited conspiracies is to fly in the face of all that is reasonable and logical, especially considering the numerous collaborations that would be required in countless fields, the enormity of which would require almost every single professional in the world to be in on it.

To put it even more plainly, the fact that you can observe the spinning globe A: the moon, and the other spinning globe B: the sun with any store-bought telescope and filters and you can predict with utmost precision things such as solar eclipses and lunar eclipses as have countless civilizations, all based on a heliocentric model, would mean that the conspiracy is so grand that forces out there in the universe are literally toying with our perceptions for absolutely no discernable reason IN tandem with an insurmountable conspiracy that spans countless cultures and millenia amidst our own people, for there is no other explanation for those things.