I found when printing the linked Handcuffs that the chains would fail (adding a brim would fix this but i don't want one all around the handcuffs)

This Single Chain Link has been extracted from the original so that it can be printed on its own with a brim (mind fingertips when cutting it off though!)

When printing with a resolution of 0.2, insert a 'Pause at height' post processing script at layer 46 (this is what it's called in Creality Slicer). This adds a M0 code to the end of layer 45 so you can place the other printed Chains in the open Chain Link before the top is bridged, this way you still end up with whole printed Chain Link (3D printing is awesome!)