Both are about as hard wearing, they just have a quite difference surface feeling. PBT has a dry feeling, where as POM feels 'wet'. Mostly just preference.
So PBT feels rough, POM feels wet, then how bout abs?ABS feels "sticky". It offers increased friction at the skin-plastic interface compared to PBT.
PBT feels "rough" when its textured because its hard...
POM feels "wet" because of the low friction (like putting oil on PBT caps)
ABS feels like your everyday plastic (as a lot of it is made of ABS or blends with it)
PBT feels "rough" when its textured because its hard...
POM feels "wet" because of the low friction (like putting oil on PBT caps)
ABS feels like your everyday plastic (as a lot of it is made of ABS or blends with it)
Very well described sir. I have Noppoo with POM and Filco with PBT. I think both are good, but PBT is a bit tougher.
why do people care about toughness for keycaps? I would hardly care finger smashing a 'highly dangerous' situation
Wut?
It should be
PBT>POM>ABS
PBT and POM are both nice. But the only POM keycaps with legends are laser in-filled, AFAIK. Or at least they are most common lettered POM keycaps. And you will feel the raised letters on the keytops. I've been using exclusively PBT for like a year, and now ABS feels kind of funny to me. And shiny ABS has a distinctive "greasy" feeling, that you cannot wash away.
Yeah some of the older Cherry POM have no raise at all on the legends. No idea how they managed it or why they stopped as they were VERY nice. I made the mistake of selling a set like that before I knew they weren't all that nice :/The Noppoo POM has no raise in the legend. Feels very smooth to me too.
POM is supposed to be smoother.. it has some soft suppleness to it.Show Image(http://www.cute-factor.com/images/smilies/onion/th_095_.gif)
In general I like PBT, but I will admit that POM spacebars are nice. Both are leagues ahead of ABS in my opinion.
GB for $29 for full 104 blank setIn general I like PBT, but I will admit that POM spacebars are nice. Both are leagues ahead of ABS in my opinion.
where can I get a POM spacebar?
You can buy a cherry keyboard that has one and sell the rest.In general I like PBT, but I will admit that POM spacebars are nice. Both are leagues ahead of ABS in my opinion.
where can I get a POM spacebar?
Does POM get shiny?
Does POM get shiny?
its pretty much inherently shiny
Yes, all ABS, POM and PBTgets shiny with time. But PBT and POM get shiny much less and you still can type with a shiny POM or PBT without feeling sticky.
why do people care about toughness for keycaps?
why do people care about toughness for keycaps?
Because they don't want their keycaps becoming shiny within weeks of usage. "Hard-wearing" would be a better word.
why do people care about toughness for keycaps?
Because they don't want their keycaps becoming shiny within weeks of usage. "Hard-wearing" would be a better word.
why do people care about toughness for keycaps?
Because they don't want their keycaps becoming shiny within weeks of usage. "Hard-wearing" would be a better word.
i wasn't talking about shining. i was talking about crushing pressure.
why do people care about toughness for keycaps?
Because they don't want their keycaps becoming shiny within weeks of usage. "Hard-wearing" would be a better word.
i wasn't talking about shining. i was talking about crushing pressure.
So is POM a stronger plastic than ABS or PBT?
why do people care about toughness for keycaps?
Because they don't want their keycaps becoming shiny within weeks of usage. "Hard-wearing" would be a better word.
i wasn't talking about shining. i was talking about crushing pressure.
So is POM a stronger plastic than ABS or PBT?
What exactly do you mean by "stronger"?
In terms of pure tensile strength, POM is strongest (68MPa), then PBT (50MPa), then ABS (40MPa).
However, there are different measures of "strength". Tensile strength, compressive strength, fracture resistance, surface hardness, etc. PBT has low fracture resistance for instance, even though it has higher tensile strength and surface hardness than ABS. This is why it doesn't handle being hit with a hammer as well as ABS like in that ridiculous Ripster hammer test image: http://deskthority.net/wiki/File:Hammer_Time_-_PBT_versus_ABS.jpg
In simple terms, POM is the "toughest" (highest tensile strength and fracture resistance). PBT is hard wearing, but brittle, ABS is the softest and it's fracture resistance is somewhere in between POM and PBT.
why do people care about toughness for keycaps?
Because they don't want their keycaps becoming shiny within weeks of usage. "Hard-wearing" would be a better word.
i wasn't talking about shining. i was talking about crushing pressure.
So is POM a stronger plastic than ABS or PBT?
What exactly do you mean by "stronger"?
In terms of pure tensile strength, POM is strongest (68MPa), then PBT (50MPa), then ABS (40MPa).
However, there are different measures of "strength". Tensile strength, compressive strength, fracture resistance, surface hardness, etc. PBT has low fracture resistance for instance, even though it has higher tensile strength and surface hardness than ABS. This is why it doesn't handle being hit with a hammer as well as ABS like in that ridiculous Ripster hammer test image: http://deskthority.net/wiki/File:Hammer_Time_-_PBT_versus_ABS.jpg
In simple terms, POM is the "toughest" (highest tensile strength and fracture resistance). PBT is hard wearing, but brittle, ABS is the softest and it's fracture resistance is somewhere in between POM and PBT.
No idea.
Whatever tbc meant by "crushing pressure".