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geekhack Community => Keyboard Keycaps => Topic started by: zippox on Wed, 19 March 2014, 23:46:37

Title: PBT keycaps on older keyboards
Post by: zippox on Wed, 19 March 2014, 23:46:37
Is there a way to tell if the keycaps on an older board are PBT? Has ABS basically always been the standard?
Title: Re: PBT keycaps on older keyboards
Post by: Pacifist on Wed, 19 March 2014, 23:47:27
acetone, salt water test
Title: Re: PBT keycaps on older keyboards
Post by: zippox on Wed, 19 March 2014, 23:51:29
acetone, salt water test

So what's a socially acceptable way for me to find out if I were looking at a keyboard at a garage sale?
Title: Re: PBT keycaps on older keyboards
Post by: Lastpilot on Wed, 19 March 2014, 23:53:22
PBT sink like rocks in water. Link (http://geekhack.org/index.php?topic=41668.0)

So I guess you could grab a cup of water at the garage sale and test it lol.
Title: Re: PBT keycaps on older keyboards
Post by: Pacifist on Wed, 19 March 2014, 23:54:10
at a garage sale, there's really no point in differentiating whether or not the caps are PBT

all you need to do is take off a key and see if its mechanical. I really doubt somebody is trying to get a lot of money out of a board at a yard sale, and thus will price it really cheap. If its a mech, buy it no matter if its abs or pbt. If its PBT but not a mech, what are you wasting your time for, you won;t be able to use it on any mechs
Title: Re: PBT keycaps on older keyboards
Post by: zippox on Wed, 19 March 2014, 23:57:21
at a garage sale, there's really no point in differentiating whether or not the caps are PBT

all you need to do is take off a key and see if its mechanical. I really doubt somebody is trying to get a lot of money out of a board at a yard sale, and thus will price it really cheap. If its a mech, buy it no matter if its abs or pbt. If its PBT but not a mech, what are you wasting your time for, you won;t be able to use it on any mechs

Are there any old-school keyboards that have caps that aren't pull-off-able? I.e. is it a safe bet if I try to rip of the Esc key that I won't break it?
Title: Re: PBT keycaps on older keyboards
Post by: Pacifist on Thu, 20 March 2014, 00:00:00
at a garage sale, there's really no point in differentiating whether or not the caps are PBT

all you need to do is take off a key and see if its mechanical. I really doubt somebody is trying to get a lot of money out of a board at a yard sale, and thus will price it really cheap. If its a mech, buy it no matter if its abs or pbt. If its PBT but not a mech, what are you wasting your time for, you won;t be able to use it on any mechs

Are there any old-school keyboards that have caps that aren't pull-off-able? I.e. is it a safe bet if I try to rip of the Esc key that I won't break it?

most boards should be able to pull off the keys. I do not know of any mech that doesn't, hell even all the RDs are easily removeable
Title: Re: PBT keycaps on older keyboards
Post by: rowdy on Thu, 20 March 2014, 00:03:04
Just carry around a keycap remover, preferably a wire one, when you visit such sales.

Less risk of damage to the keyboard if you decide not to buy it.
Title: Re: PBT keycaps on older keyboards
Post by: jacobolus on Thu, 20 March 2014, 04:41:30
most boards should be able to pull off the keys. I do not know of any mech that doesn't, hell even all the RDs are easily removeable

Take this with a grain of salt. There certainly exist types of switches/keycaps which are relatively easy to break if you aren’t careful when removing the caps. Many keycaps will pop off pretty easily with a keycap puller (or a pair of paper clips, or a butter knife, ...), but if you’re getting a lot of resistance, don’t just yank on it full strength. :-)
Title: Re: PBT keycaps on older keyboards
Post by: fohat.digs on Thu, 20 March 2014, 07:24:33
There are compatible keycaps on rubber dome keyboards, sometimes PBT. There are doubleshots out there as well. For example, first-generation Apple Design Keyboard and Gateway 2000 Anykey have nice caps.

Carrying around a keycap puller is a good idea. Be especially careful if you think that it is Space Invaders, those springs fly away in a blink.