This is my first try on creating a chainmail type fabric.

Prints fairly easy, if you have difficulty with first layer, you may want to size it up. 

I created it in Onshape, you can find it here

https://cad.onshape.com/documents/9cd07fbc09091a08d9b71387/w/e400b6305f35df12d69fac31/e/80c3f42c2b8f9847cb8b8060?renderMode=0&uiState=68fd3415d737aba476b653fd