Update on beam spring inner foam:
Everyone can now order an extra beam spring inner foam set at the below link, which has been updated today to add this item. Same as with the Round 1 beam spring first aid kit, extra inner foam was not a part of the kit as it was with Model F First Aid Kits, so it would have to be ordered separately.
https://www.modelfkeyboards.com/product/beam-spring-extras/If you are just ordering some extras, please feel free to place a new order and choose free/other shipping at checkout, right before clicking Place Order, to add to an existing shipment.
These are for the Round 2 classic style beam spring keyboards. The cut out one goes below the inner assembly plate and on top of the beam modules (just like with the IBM originals) and the bottom one goes below the PCB. Both are made of the same custom material as the newer batch of XT (non-crumbly style) Model F inner foam.
I also have some Round 1 beam spring foam sheets; these are just for the bottom one that goes below the PCB; feel free to email me if you want to order one.
Here's a photo of one of the first samples of the foam from a couple years ago - obviously it is a little rough compared to the production version.
(photo uploads currently not working; the above product page also shows the photo)