pettrik

for example: if I try to print a quader of exact 20.5 x 20.5 x 20.5 mm with 0.2 mm layers then I get a quader of 20.5 x 20.5 x 20.4 or 20.5 x 20.5 x 20.6 but not with the correct z-size. Especially if I use first layer height 0.3 mm. In xy-direction I can reach nearly 0.01 mm resolution, but in z-direction the height of several horizontal surfaces depands on luck.

It might be a good idea, to detect all horizontal surface triangles, sort them for size, use those relevant triangles to break the model into z-parts and adapt the layer heights for each z-part separately. Therewith horizontal surfaces may be printed at exact z-position as needed for constructive models. The current algorithm leads to inacurate z-positions in the extent of the minimal layer height set. Is anybody able to implement this idea in the relevant c++ code of cura-engine? It is to expansive for me to implement the idea due to other work at the moment.