I finished building the assembly of mirror box / rocker box / platform yesterday.
Without putting in the mirror yet (which will weight 29 lbs) the mirror box is heavy to push and pull. I did not detect any stickiness in the motion. It turns smoothly. But I was surprised that I need to use a bit of effort to turn the mirror box.
The mirror box alone weighs about 20 lbs (without the mirror) and the rocker weighs another 20 lbs. I guess it's just the inertia of the 40 lbs.
Perhaps it is all too heavy. At least the seconday cage is light: a mere 5 lbs (without eyepiece or finder scope).
I nothing to compare with (except pictures in books!!! and my own home-made 10" dob). I was wondering if people who have a big dobsonian have a similar experience.
In lumine tuo videbimus lumen.
8O Home-made 10” Dob / Home-made 4” refractor
EPs: Konig 32mm (1.25") / Zhumell WF 30mm (2") / Nagler 13mm T1 / Orion Sirius Plossls 25 & 10mm / Zhumell Plossl 9 mm / Meade MA 9mm