ardy_guy:
Nothing wrong with commenting on old threads. It's very possible that someone pulls the OP's pic up and builds it, and if Elfnet's and MarkT's comments make the OP's product better, then that's a good thing.(That ngbk became a Guest meantime, of course means she might not see the new posts, but that doesn't make the new posts any less useful to the community at large.)
That ngbk is me, I'm (He). Yup i did not received any new post, until i register to arduino again.