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Posted · Material station: Why is the humidity threshold 'only' at 40% ?

I am currently thinking about getting a material station for my S5. 

I know about the other features and how I could improve my work with the S5 with it. 

Besides that, it would be a 'nice to have' and probably fun to play with. 

 

But one thing I don't understand is, why is the material station holding the humidity at 'only' 40%?As far as I can tell from my own experience, something low as 10-20% works great for high Hygroscopic materials like Nylon and PVA (which I use a lot).

 

Were there some humidity tests at Ultimaker which say 40% works great or is this the best the material station can do?I have yet to see an actual review from someone with the material station, but from what I can read in the forum from time to time is that some users have problems with PVA regarding retraction and broken filament.

To me that sounds like humidity problems...

This is currently the main problem that holds me back getting a material station.

 

Could someone maybe explain this to me or share his experience?

Thanks in advance. 

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    Posted · Material station: Why is the humidity threshold 'only' at 40% ?

    Hello,

     

    I put a humidity meter in my material station for a while, and the humidity slowly went down to 19%.

    PVA filament can get brittle when it is held under tension. When this happens it can break when it is loaded or unloaded. I don't think it is a humidity problem. I switched to using BVOH for disolvable support material. It is far less likely to break.

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