2. Question: Why does the Chesed Avraham hold you can use an electric machine to make tzitzis but not to shecht an animal?
A. The Har Tzvi brings those that are strict who say that both tzitzis making and shechting must be done by hand and not machine because the Torah says by shechting “and you shall slaughter” which sounds like “you,” it needs human power to kosherly slaughter an animal. By tzitzis the Torah instructs “you shall make for you” which also implies human power is needed to make tzitzis.
B. Why doesn’t the Chesed Avraham understand the verse by tzitzis in the same manner as he understands the verse by shechita?
C. By twirling and knotting the strings you are transforming them into tzitzis. Whereas by a live kosher animal all you are doing is killing it in a specific way the Torah tells you to do it.
A2. In terms of tzitzis the action is just the means of transforming strings into an object called tzitzis so you don’t necessarily need a person to do that as long as the transformation took place it is now a kosher pair of tzitzis. Whereas by shechita there is no transformation into a new entity taking place so the action of slaughtering isn’t just a means it is an act in of itself therefore it will require special halachos like a person’s own power doing the action as the Torah indicates and therefore a machine doing it, no matter how precise will not halachically be able to do the job. Result vs. Process