Re: Beginning a CD-12 adventure

[cron78]

Just pressed against the rings with the tine of a plastic fork (couldn’t find a popsicle stick or bamboo skewer). At first the top rings didn’t move. After a few tries, they all moved easily. Ran a sharpened pencil lead on the inside of the top cylinder and I can’t really tell the difference on the area with the brown streak vs. the rest of the cylinder wall.

Thanks to all for all the input so far!