Dover.
The essence of an I beam and ply is the separation of the two outer layers (sheets). Any bending causes compression of one sheet and tension in the other. This increases the stiffness of the structure.
As I said earlier. It is a 25 year old design. Were I to design one today, it would use different materials and architecture.
(Dover "To be clear what was being measured in my post on the Timeline thread – the 2mm lag was generated by setting the TT speed with no stylus playing and then measuring the lag when playing. A 2mm lag at a radius of 400mm is a speed error of 0.08%") and ("In summary, your maths is wrong because your calculations are based on a misinterpretation of my Timeline test results.. When the 26kg platter speed was set with the stylus playing, there was in fact no measurable retardation.")
My post calculates the retardation torque required to cause the slowing, from stylus raised to stylus lowered and then applies this to the pod.
What happens AFTER you adjust the speed with the stylus lowered makes no difference to the calculated pod movement.
Re the CofG of the crescent shaped pod. I didn't make this note clear. It appears that the feet have been moved back towards the rear of the pod, moving the CofG closer to the front feet. The photos are a little ambiguous. If this is not the case then yes the CofG will move away from the front pod feet reducing the tilt.
The platter is heavier than I thought. If its radius of gyration is as I assumed, this extra weight will increase the torque required to slow it and by definition increase the pod tilt.
The essence of an I beam and ply is the separation of the two outer layers (sheets). Any bending causes compression of one sheet and tension in the other. This increases the stiffness of the structure.
As I said earlier. It is a 25 year old design. Were I to design one today, it would use different materials and architecture.
(Dover "To be clear what was being measured in my post on the Timeline thread – the 2mm lag was generated by setting the TT speed with no stylus playing and then measuring the lag when playing. A 2mm lag at a radius of 400mm is a speed error of 0.08%") and ("In summary, your maths is wrong because your calculations are based on a misinterpretation of my Timeline test results.. When the 26kg platter speed was set with the stylus playing, there was in fact no measurable retardation.")
My post calculates the retardation torque required to cause the slowing, from stylus raised to stylus lowered and then applies this to the pod.
What happens AFTER you adjust the speed with the stylus lowered makes no difference to the calculated pod movement.
Re the CofG of the crescent shaped pod. I didn't make this note clear. It appears that the feet have been moved back towards the rear of the pod, moving the CofG closer to the front feet. The photos are a little ambiguous. If this is not the case then yes the CofG will move away from the front pod feet reducing the tilt.
The platter is heavier than I thought. If its radius of gyration is as I assumed, this extra weight will increase the torque required to slow it and by definition increase the pod tilt.