both Ultimaker 2's are regular models without updates or mods. They were purchased at about the same time, but I cannot tell if they are from the same 'batch'.
I'll skip the pictures because I reckon they will not really help show the difference in fan speeds..
Welcome to the forums!
Could you tell us a little bit more about the Ultimakers that you are using?
Are both regular Ultimaker 2's or Ultimaker 2+? And are they upgraded / modified in anyway like an Olsson Block or custom fan shroud?
Pictures are always helpful
Did you purchase both at the same time?
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