Mine is sitting on that original sticky tape (affixed to the side of the 12" Steel OTA Dob under the focuser right in the field at the GSSP 2010 dark skies) for 9+ years. No complaints from using it every clear night. I do have a 3D printer for 6 years already and never had even a slight desire to print something what might be better
Just paint your tape in blue. Mine is so dark from dust that I can barely notice it's there (However, the white color still visible on the inside helps with the mounting in the dark without a flashlight).
Hate goo and drillbits? Then my usual advice: long zip tie.
Regarding my Telrad location on the OTA. It's not for the folks using Telrad as a glorified red dot finder (RDF). It's for the pattern matching technique of pointing with Telrad (TPM).
Edited by halx, 31 October 2019 - 03:06 PM.