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[utunnels]

I have a problem.
I wanted to build a green glass gem window and already cut 2 small green glass gems.
But after 8 9 10 11 cut green glass jobs, I got no more small gem.

What is the chance? I think I'm just wasting logs for nothing...maybe I should fire the gem cutter.


Well, finally got a "cut green glass".

[Orange Wizard]

It's random. Large gems are made more frequently with skilled gem cutters IIRC, so yes, firing him should fix the problem.

[pisskop]

It's random. Large gems are made more frequently with skilled gem cutters IIRC, so yes, firing him should fix the problem.

  Thats some union speak.

[Orange Wizard]

Sod the unions, we need to increase productivity!

[Thisfox]

Well, finally got a "cut green glass".

Well, if you have access to glass making, why not just make glass windows?

[utunnels]

Well, finally got a "cut green glass".

Well, if you have access to glass making, why not just make glass windows?

I want to make some fancy gem window animations.

[Thisfox]

Well, finally got a "cut green glass".

Well, if you have access to glass making, why not just make glass windows?

I want to make some fancy gem window animations.

Oooh, I see. Makes sense now. 

[Vattic]

It's random. Large gems are made more frequently with skilled gem cutters IIRC, so yes, firing him should fix the problem.

This DFwiki page says that 5% of cut gems become large gems / crafts. 33% if you are cutting raw glass. The skill changes the value of the result, while the ratio of return stays constant.

[Orange Wizard]

It's random. Large gems are made more frequently with skilled gem cutters IIRC, so yes, firing him should fix the problem.

This DFwiki page says that 5% of cut gems become large gems / crafts. 33% if you are cutting raw glass. The skill changes the value of the result, while the ratio of return stays constant.

Okay, thanks. So he's just really unlucky then.

[utunnels]

Well I think maybe the RNG had played a joke, or it was not reseted for some reason.
The chance for 11 large gems is less than 1/2000 1/200000000000000 if 5% is correct...

[Vattic]

In the OP you say you were cutting green glass which has a 33% chance; Still unlucky.

[utunnels]

33%

Oh yeah, I saw the numbers in wiki. Didn't notice them before.

[Sadrice]

Does the gem cutter happen to really like large gems?  I don't know if that changes their production rate, but it seems plausible.

[Orange Wizard]

It's random. Large gems are made more frequently with skilled gem cutters IIRC, so yes, firing him should fix the problem.

This DFwiki page says that 5% of cut gems become large gems / crafts. 33% if you are cutting raw glass. The skill changes the value of the result, while the ratio of return stays constant.