Rebutal document

1. Some parts of the manuscript are still unclear; some of these are marked in the manuscript but there may be others, so please proofread, ideally by a fluent English speaker.

Marked sections had been revised.

2. 2.1.2: How is this done? If it’s the procedure listed in the following note, that should be incorporated into this step.

Done; Line 244 ff.

3. 2.2: More of this should be highlighted; as is, a ‘material’ is shown being spooled without its extrusion being shown.

Indeed this would be good, but the extrusion (+spooling) was made in Austria (Leoben) and the filming will take place in Germany (Dresden). We only can show a almost similar extruder (TSE) and the final filament, what we get form Leoben. The reason ist that all the results were made by an international team within the EU-project cerAMfacturing.

4. Would it be possible to consolidate the figures? 22 may be too many for readers to keep track of, and some with similar subject matter can certainly be consolidated into single ones (e.g., 1 and 2, 6-8, 15-17). Also, Figures showing the process that will be videotaped (e.g., 4 and possibly 5) may not be necessary.

1 and 2 consolidated, 6 to 7 consolidated.

I think reducing the number of figures needs to change the text as well. A couple of the last comments of the reviewers were related to tower structure (fig. 4 ) and ooze shield (fig. 5). Removing them would lead to more confusion.

5. Figure 2: There is no scheme in the Figure.

Done. This was my fault. I missed the CAD of the belt drive.

6. Figure 10: What are the error bars?

Done.

7. Figures 15/16: There are no left or right portions in these figures.

Done.

8. Please move discussion involving Figures 19-22 to the Results; the Discussion should be focused on topics that people who might want to do this procedure should know about. Also, the Results section can show results that do not directly come from the written Protocol but nevertheless illustrate some aspect of it.

Done. I rearranged a little.