Glad it's working out for you. I basically remixed Gkbeer's version , to get me by until I build my proper bed solution for my delta.
For now, I've actually just 'taped' my glass down, as I have some bigger/better plans for holding my bed down in the future. It's definitely not ideal.
You may want to explore Gkbeer's version - he actually has clips for putting on the top of your bed to hold it in place. They may work for you? See  for his version.
 Gkbeer's version: http://www.thingiverse.com/thing:265490http://www.thingiverse.com/thi...