Glued on secondary mirror?

[Mikkel Kroman]

Hi folks

I own a Skywatcher Explorer 150PDS and I am trying to find an apprpriate heat wrap for my secondary mirror.

How do I know whether my secondary mirror is glued on?

Kind rgds

mikkel

[Louis D]

I've always assumed most of these commercial Dobs glue their secondaries onto the holder since there isn't a proper lipped holder as with the Astrosystems secondary holder:

I seriously doubt these commercial builders drill a threaded hole in the back of the mirror for a bolt to thread into.  That's the only other way I could conceive of attaching the secondary mirror without a lip or clips.