In this video I show the carbon wing spars being fitted, covering in brown parcel paper and PVA(White) glue and then covering in Solar Film.
l crashed my beloved first Flying Wing the YMF-38 . This was the first rc model I made on my HotWire CNC machine and it flew really well.
More details of the original wing and build here http://www.rckeith.co.uk/hot-wire-cnc-ymf-38-flying-wing/
and the detailed build of the hot wire CNC machine is here
http://www.rckeith.co.uk/cnc-detailed-build-and-plans/
Part 1 is here is you've missed it https://youtu.be/2A4Oci5fWP0
The 3d printed motor mount on Thingiverse https://www.thingiverse.com/thing:1277026