DIY TT

@vinylzone , nice work! I would like to make some suggestions. Hang the acrylic plinth from towers placed at the for corners. Depending on the mass distribution of the turntable you will probably have to use different rate springs at each corner the goal being for the plinth to bounce straight up and down at about two Hz. You can get an idea of the differential by putting a scale under each corner. Ten put the whole show under an acrylic dustcover. You can probably make the towers out of acrylic also. Could be a work of art. Look at and old Basis Debut or the Sota Millenium to get an idea. I don't want to be a PITA (yes I do) but you deserve a better arm.

@pindac 

I have tried glass, marble, and granite in the past, but not with this plinth.  I have found MDF to be preferable to either of those materials as a base shelf material.  However, I don't have a suitable sized piece of MDF right now to use as a base shelf.

@vinylzone We would get along mighty fine and dandy, with the inquisitive nature shared between us about materials used for structures to support TT's.

I am still trying to learn if the choices are just restricted to the choice of the materials, or additionally the environment the materials are used in to produce a structure.

I have taken other selections of materials to other homes, and the ones I thought were going to be the preferred ones by the assessors,  have been the least attractive selected on the day, to which I have been in agreement,  👨‍🎓👩‍🎓, more clever types might be able to help with that conundrum.

@mijostyn 

I don't need that kind of isolation.  No structure borne vibrations make it to the plinth.  The sub floor is a cement slab.  Springs of any sort do not provide any positive sonic benefit.  In any event, if I did need a suspension as you describe, I could always go back to my venerable Logic DM101 😀

@pindac 

I'm sure we would get along great.

I've found that the choice of materials is extremely dependent on the environment.  When my listening room was on a suspended floor, my old Logic DM101 (similar to Linn/AR/Ariston), but also similar to Sota (3 point suspension hung from springs) worked best at isolation when using either a low or high mass stand.  Where my tables are now, foot falls and structure borne vibration aren't much of an issue.  The platforms are more about preventing airborne vibration from reaching the platter and arm, and also about the ability to precisely level the plinth and platter.