Print in place heart chain

There are several heart chains on Printables. But I wanted one, where links are closed (no assembly required) and that can be printed without supports.

Design should fit on every 210x210 3d printer but can be scaled up or down according to your needs.

I have printed mine with PETG and with 0.6 nozzle and it worked well, but if you don't have good adhesion adding brim can be necessary (it was in my case). I recommend PETG as it sticks better to PEI and tends to have better layer adhesion.

This print is a bit challenging, I had two failed attempts before success. The main issue is that there are many small parts with small contact area with the bed - ane when the print goes to the  overhang parts if even one part gets knocked of the bed - the print  will fail. You can try the hard part - and if it fails - try with brim.