I had this happen once doing wing joiner tubes for the Allegro; I finally got the fiberglass tube off the mandrel by running it under an "InSinkerator" hot water dispenser here at work. I think you could do the same with either HOT tap water or water from a tea kettle. I don't know if it loosened up the epoxy, melted the wax, or both - it did save me from having to cut into the glass and mandrel to start over again.
Good luck, Brent RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format