Laser 3D
Look on the bright side....it makes checking out your linkages easier and keeps oil and dirt out of the servos.
Earlier in this thread there was talk of using a houshold iron. That reiminds me of an earlier time in life. Super Monkote had just hit the market. (Original Monokote was sticky backed). It was a hot and humid Minnesota day so I was in shorts. I was covering a control-line stunter (I think it was a TF Flitestreak). As I tipped the iron upside down to go around the wingtip I managed to dump very hot water out of mom's steam iron onto my bare leg. So, yes, you can use a houshold iron. But drain the water out first!
Chuck