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Hi, I just love this model.
I am currently printing one off an an original Prusa Mk2S. However, I am having a bit of difficulty with the Fan_Stator_Casing_and_Support_With_Supports.
In general for all the casing parts I am using the files with supports, if available, but I assume you still need to use supports for the flange on top that bolts to the next casing item.

But what I am struggling with is the custom supports on the Fan_Stator_Casing_and_Support_With_Supports.
Whilst they are just the same as on the rotor parts, except bigger and higher, they seem very thin and each time I try to print some of the supports just collapse before they can even be used as supports (i.e whilst at a level the supports are still being built). Each time it is different supports that fail. In actual fact if I slice with Simplyify3D it does not even see the uprights of the supports, only the bits on the build surface. I assume it is something I am doing wrong as I am fairly new to 3D printing. Can anybody offer advice how to thicken the custom supports ?
So far only used free version of sketchup for models so don't think I can change the supplied files with this.