One of the problems with download/printout models is alignment. In models where parts need to be lined up accurately on the front and back of a sheet normal printing just isn't up to the job. You may have noticed my latest attempt to get round this problem in the recent Hen Pecked model.
In this design there is a cross piece at the back of the hen that needs to be accurately positioned. I've placed the glue areas on a hinged piece.
The hinged piece folds over and glues down onto the back of the body piece positioning the glue areas accurately.
The side is completed by trimming of the cross hatched piece.
Here's the cross piece, accurately positioned in the final model.
It's all about the incremental improvements 🙂