QUOTE(doppatroll @ May 29 2020, 04:04 PM)
is it possible to convert solder switch to hot plug switch ?
It's possible, but, the question is,
"is it worth it?", I would say if there's another PCB available that natively supports Kailh/Gateron hot-swap sockets, just get a new PCB.
There are 2 ways to make a normal solder-only PCB hot-swap
1. Use copper eyelets.
Pros: CHEAP and somewhat easy to work with
CONS: They fit loose, like REALLY loose, basically you can almost hold on to your plate and the PCB will fall off. Also, switch pins would need to be bent in a certain angle before inserting so they make contact with the copper eyelets and makes the switch/keyboard work.
2. Use Mill-max sockets
Pros: Solid connection, fits tight just like Kailh/Gateron style hot-swap sockets.
Cons: EXPENSIVE, might as well buy a new hot-swap PCB. Also, fitment is PCB to PCB basis, some PCBs work very well with it, some, might cause the switch to sit a little less flushed to the PCB.
QUOTE(ShadowFiendZXC @ May 30 2020, 02:53 PM)
https://item.taobao.com/item.htm?spm=a1z10....82&on_comment=1how well do these screw-in stabs perform compared to GMK ones?
Comparable? Can't say that GMK stabs are 2-3 times better though(coz the price is 2-3 times more). Won't say "Get C3 stabs" coz they are a GB item that's not necessarily easily obtainable once you missed the bus. C3 v1 stuck keycaps is a case per case basis, as
horns already put it, just file the stab (instead of the keycap) with a nail file.
I would say Cherry screw-in should be good enough for most builds. Better than the push-fit ones since they are more secured on the PCB.
QUOTE(quadcube @ May 30 2020, 05:08 PM)
Heck no

unless you fancy clamping down your PCB and drill holes with CNC, superglueing every hot swap socket to the newly created holes and finally hot wiring the entire switch matrix to the controller by hand.