PSA: Keycaps getting stuck due to extra plastic

[Special K]

I recently bought a GMK keycap set and noticed that a few of the keys weren't bottoming out.  Instead of a "clack", I was hearing a muted "thunk".  At first I thought this was a manufacturing defect - maybe the hole for the switch stem wasn't quite deep enough, preventing the keycap from being pressed all the way onto it.  Upon closer inspection, I saw that there was a piece of plastic left behind from the manufacturing process:



This extra plastic piece was catching on the switch mount, preventing the keycap from fully bottoming out.  I just took an xacto knife and trimmed off the extra piece, and the keycap was fine after that.

I don't have anything else to add; just check underneath your keycaps if some of them aren't bottoming out.  This is my second GMK set and the first one didn't have any keys with this issue.  I've never bought any other brand of custom keycaps, so I don't know how common this issue is.

[FrostyToast]

If your keyboard has LEDs on the switches, then that would be your problem. Cherry caps weren't intended to be used with LEDs and it is a known issue.

[FrostyToast]

Actually, I see that the crossbar is longer on one side. Interesting manufacturing error.

[Special K]

If your keyboard has LEDs on the switches, then that would be your problem. Cherry caps weren't intended to be used with LEDs and it is a known issue.

My keyboard is just a standard Filco, so no LEDs.

[Special K]

Actually, I see that the crossbar is longer on one side. Interesting manufacturing error.

It's centered the same as all of the other keycaps in the set, it's just the other keycaps don't have anything in that space, whereas this one (and 5 others in my set) has that little stub of plastic left behind.

[rustywok]

I had that issue with my GMK Honeywell set. I fixed it by using an x-acto knife to slice off that little spur of plastic clinging to the stem.  Turns a dull thud back into a click that matches the rest of the set.