Plate Reverb pre EQ Issue

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@RoadrunnerOZ "the thinner the plate material needs to be but the more air resistance damping comes into play." What does it mean?

"so as it seems you’re planning on using springs" I must say that I have not.
Air resistance to movement will have a greater back effect on the lighter material so ring time is reduced - the input signal is short but the plate ring-on time is dependent on the mass of metal moving and the factors that impede that movement - as it has a large surface area the air damping factor is considerable.
As far as the springs go you posted a video of the construction of a plate which I assumed patterned what you were going to build - post #61 - that construction uses springs - shown at 02:00.
 
Air resistance to movement will have a greater back effect on the lighter material so ring time is reduced - the input signal is short but the plate ring-on time is dependent on the mass of metal moving and the factors that impede that movement - as it has a large surface area the air damping factor is considerable.
As far as the springs go you posted a video of the construction of a plate which I assumed patterned what you were going to build - post #61 - that construction uses springs - shown at 02:00.
That was before the alchemical secrets of Hermes were revealed to me. Now I can see more clearly what needs to be done!
 
I have trouble deciding between the bigger and the smaller size, for the bigger my worries is:

1# Dampening, is good/bad is dampening with a towel? How advanced is the construction of the dampers in relation to the rest of the construction, and to go without damper then maybe the smaller will be more suited for music production since it has shorter decay.

2# For the bigger size I guess the steel frame tubings will be more difficult to drill and cut.
 
I have trouble deciding between the bigger and the smaller size, for the bigger my worries is:

1# Dampening, is good/bad is dampening with a towel? How advanced is the construction of the dampers in relation to the rest of the construction, and to go without damper then maybe the smaller will be more suited for music production since it has shorter decay.

2# For the bigger size I guess the steel frame tubings will be more difficult to drill and cut.
Bigger. If you want it to really sound good, you need to be in the ballpark of EMT, Ecoplate, etc. size. Otherwise the resonances will be too prominent in the midrange. I have experimented with this directly. Steel or similar frame is a must for the amount of tension required. It isn't terribly difficult to work with.
 
Not sure what M-12-O is - Im semy joking, there is a supplier that ask what quality I need the sheet to be in. So I asked him for cold rolled and stainless and he still asks me what quality/kind so to specify exactly I would need to give him a type number in order for him to give me quotes.

25 mm it is then.
stainless comes in several qualities, 304, 316(L) (in order of stainlessness). 316 is the hardest. There are other denominations, like 1.4301 (roughly eq to 304) and 1.4404 (eq to 316L). 304 is basically less acid resistant.
I surmise the resonance harmonics would be higher the stiffer the material is.
If you want to roll a 0.6mm sheet, be sure to make a large roll, and be prepared to counter-roll it once it's in place..
I would not recommend it. We recieve all our sheet material in flat-packs and store them flat.
 

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