Because original parts presents real weaknesses, I design these new parts inspired by the Raffle products (http: // shop.raffle.ch/). These alu parts are too expensive for me, its why I made these in ABS.
Same support parts for the two sides.
See pictures give a good idea of the making and installing process.
I have made also the heating bed arms, see at : http://www.thingiverse.com/thing:288308
I write instructions ASAP