This is a remix of FLJim original Flash Forge Finder Heated bed mod https://www.thingiverse.com/thing:4704188.
I was looking for a way to expand the build area for the Finder without costing an arm and a leg. The original design was built using a Anet A8 style heated bed. I wanted to use a Creality Ender 3 style heated bed instead since I had a spare one in my parts bin. I reworked the model to give me the room to add the option to use either a Anet style bed or a Ender 3 style bed. Both sets of holes are marked with either A8 or E3. I also stiffened the model by adding more material. One of the complaints from the original builder was PLA would warp from the heat. I'm working on a design that fixes that as well as allows the factory bed level to still function properly. I'll update the file with the electronics I use and any other info.
The author hasn't provided the model origin yet.