I have an Ultimaker 3 which earns its keep well. I run quite a few different filaments, some of which need relatively high temperatures. I've now had two print heads fail because of the transparent plastic lever degrading, so that it crazes and splits at the screw head.
I understand this isn't currently a replaceable part - a shame - but I wonder if others have had similar experiences?
If so, does anyone have ideas as to how the thermal stress on this point could be reduced?
Chris Woolf