Dear, if you need to bake millimeter-length pasta in batches, making molds is a more accurate and efficient method. Molds ensure your pasta is consistent in length, neatly shaped, and meets design requirements.

In addition to making molds, there are some easy methods to try:

Use a knife: You can use a knife to cut the pasta into the desired length. Use a millimeter ruler or calipers to ensure the accuracy of your cuts.

Use a pasta press: The pasta press can press the pasta into noodles of a certain length. You can use a millimeter ruler or calipers to adjust the scale on your dough press to get the desired length.

Use the oven: Place the pasta in the oven and bake it. The high temperature in the oven will cause the pasta to shrink automatically to the desired length. But this method requires paying close attention to changes in oven temperature and pasta color to avoid burning.

It is important to note that these methods may not be as accurate and efficient as using molds, but are a viable alternative when molds are not available.

I hope the above information is useful to you