mitch2
I am saying: It’s an idea, opposed to rigid, worth trying:
but let’s stop and think: it ain’t exact (weight range 36-228 lbs) even if you buy very expensive products ($1,200.). I would want to prove the concept first, then refine if I feel a need to.
And, in my case, toe-in gets actively changed, so a slip surface could be glued to the bottom.
here’s 4 x 4 isolation pads from Cambridge, 8 for $26.00
https://www.amazon.com/Cambridge-Vibration-Rubber-Dampens-Vibrations/dp/B08NXZFGWT/ref=sr_1_73?dchil...like cork? 8 for $25.
https://www.amazon.com/Pack-Anti-Vibration-Rubber-isolation/dp/B01IU6WT5O/ref=pd_bxgy_img_1/130-8897...I use 2x2 pads similar to the Cambridge under my TT’s feet, just enough isolation to lessen footsteps from my springy wood floor while walking away, It was hit or miss which material/thickness would work, I just got lucky first try. Meanwhile the heavy plinth above them provides stability.
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Thanks for the suggestion, however the owens corning fiberglass boards (considered rigid as it doesn’t roll up), is soft, they are made for sound absorption, not vibration attenuation. No way could that fiber support over 100lbs. I designed corporate office space for 46 years, worked with acoustic consultants, specified special absorption and transmission materials for walls, ceilings, isolation for fitness center’s raised floors, (jumping up and down on heavy equipment, dropping barbells in offices with other tenant’s space directly below is a challenge).