Just want to show the right place to put LEDs (in my opinion). I found (not my idea) this from: https://forum.e3d-online.com/index.php?threads/titan-dual-direct-drive-design.1307/page-40 conversation between @Hans C. and @R Design The front bar, does make your printer feels more rigid. With the front LED, could light the whole bed brighter and light it when moving to the bottom. I am in the middle of modding my printer, so pardon the cable. It is messy.