PeePeePooPoo Keyboard Carnival R3 (stylized as P⁴KCR3 or sometimes just "packer") is an upcoming isolation mount case for USB-C based MiniVan-compatible PCBs designed by community member Dr.Doof.
Ongoing development and IC discussion (as well as the eventual group buy) can be found in the
#p4kcr3 channel on the 40% Keyboards Discord server.
A new extra-flexy PCB - the Model-V - is in development and will be sold alongside P⁴KCR3 during the group buy.
P⁴KCR3 uses a simplified isolation mount design that relies on a pair of thick rubber gaskets to sandwich the PCB along the left and right edges. The case is designed to be used with plateless builds and is not compatible with standard MiniVan plates. The current prototype provides no additional support to the middle of the PCB to offer the maximum amount of flex while typing.
First rule of P⁴KCR3 is you do not talk about R1
Second rule of P⁴KCR3 is you do not talk about R2
21 full metal cases are being produced prior to the round 3 group buy. They are made from milled and mirror polished stainless steel. These cases are currently in production.
Round 3 cases will be offered in several combinations of machined POM and brass. Estimated weights for the case options are: