About this 3D model
These are a drop-in replacement for [tbuser's](http://www.thingiverse.com/tbuser/overview) [Pin Connectors V2](http://www.thingiverse.com/thing:10541) that are PLA compatible. The main difference is that the lip is ovalised to minimise the tip deflection during insertion - which can cause them to crack. The tips of these pins also have thinner walls to keep them flexible.