Acrylic platter

Nandric.
My two cents worth on this subject.
I run a heavily modified SP10 MK3 and have replaced the platter completely with an acrylic one with lead sheet insert and duralium magnet motor housing, to bring the weight back up to 10 kg. I personally found this to be an improvement over the stock platter.
I think that criticism of acrylic as a platter and plinth material is valid in most cases but it needs to be taken in context. For example, I do not like the "sound" of acrylic on its own as a platter or plinth. What is important is the implementation and in particular what the acrylic is bonded to and how this bond is achieved. Done right, IMO, it is possible to get the best of both materials without the negatives of either.

Lewm.

No I am not that brave/reckless. I have the original platter complete. I took measurements from this and machined up a new magnetic housing.

Re acrylic, I think that the trick is to get to the higher transmission speed material thru a minimum amount of acrylic. You could say that I am using a duralium platter with a bonded acrylic mat. The acrylic part of the platter is only 6mm thick.

thanks

Lewm.

I may have misunderstood your question....
Yes, I changed the motor magnet and speed sensor cup over from the original platter into a newly machined dural housing.

Nandric.

I agree, there is an art in operating the CNC machines.
In our CAD/CAM shop, different operators produce different "quality" even though they are using the same program. Figure that.
I have dynamically balanced my composite platter by removing a few grams.
The MK3 is good, but the motor and that of its little brother, the MK2, can be made much better :-).
There are many contenders for the "best" and in the end it largely depends upon personal preference. One man's poison and all that.

Nandric and Lewm.
I have seen both David and Pieta and I was in awe at such beauty, such craftsmanship. Made from stone no less!

I remember The Arm, way back then I lusted after it, which was irrational since I never actually auditioned one properly. (Is one allowed to use the term lust in these PC days (daze)). But with my tiny take home pay, ownership was never going to happen. Even then it was hideously expensive here but this price was probably justified given that it was obviously made with great care by craftsmen.

Lewm, you are correct. Same program, same machine, same material, different result. And yes it is likely work piece set up, vice tension and all the other tiny "insignificant" little things that make the difference.