I did this heart last year, but I didn't like it, small details are difficult to print "clean." At least on my printer.
I tried printing with a layer of 0.1mm, and it looks acceptable, but it turns out twice as long in time 😒
I updated the design a little bit, added the arrow, on the back, and increased the gap a little bit.
https://www.printables.com/model/763501-flexible-heartbreak
