Checked it, there is no issue with the profile or the settings, so it was not the model's fault. Filament can not "melt". Your bed was clearly messy, so the filament slipped and messed up the rest of the model. Clean your bed and you can avoid mistakes like this. I would appreciate if you could remove the rating for that reason, since it has nothing to do with the model. It was carefully tested and printed multiple times, and has no issues like this.

I haven't printed this yet, will you tell me what you use to clean your bed, what type of cloth, and how often do you recommend please and thank you, I really like the looks of your design

Clean it before every print. Use soap, warm water and some kind of smooth cloth. Do not touch the plate with your finger because it fat on your skin leaves a stain. It's easy to get the hang of it, the user who messed it up clearly doesn't know how their own printer works, but if you do, issues like this can be avoided. If you don't know how it works, you will mess up every model. I could put a brim on the default model but then people would complain about the brim, and how much time it takes to remove it. and thank you, I appreciate that you like my design!

Beautiful!

Beautiful!

I'm glad you like it so much! It is because of these comments, that I love to create new stuff, thank you! Means a lot!

You're very welcome! Thank YOU for sharing such a great design! 😊

Interesting. No one ever reported that before, and I have personally printed a dozen of them with no issue. If you check the sliced x-ray of the model, you can see that the joint is also think and strong. I do not know what you did, but I suggest you try it again, because it was definitely a user error.