Hi,
This model is for replacing or adding a shelf to a Haier refrigerator, model HT21TS85SP. It may work for other models, but I have no idea.
The print is too large for a Prusa i3 MK3S+ to print in one piece, so it is printed in two pieces and then glued together. It needs support material to achieve the required mounting geometry. I used just regular super glue and it has help up to the cold and weight of items just fine.
Please let me know if you have any questions or ideas for improvement!
Thanks,
Mitchell
The author hasn't provided the model origin yet.