LED 8 mm strip magnetic mount

Finally got around to a better mounting for the LED strip on my Printrbot metal plus. I have about 14" of white, 8 mm wide, 12 volt, LED strip tucked under the top of the printer frame. I am using two of these 6" long holders, there is a about a one inch unsupported gap in the middle but it works fine. The magnets are these https://www.kjmagnetics.com/proddetail.asp?prod=R422CS-S I tried a different method to attach these, I pushed them in and then used a soldering iron to quickly melt the cen