When using this method, the matzos would be placed into the oven with a stick using manpower, however, inside the oven the matzos would travel on an electric conveyor belt. Some questioned this, since the matzos weren’t being baked in the place they were originally put down, but rather further down inside the oven where it arrived by the power of an electric conveyor belt and according to those that hold a machine is not lishmah, they held that here as well there was a problem of lishmah.
On the other hand, R’ Ezriel Auerbach shlita discussed this issue with R’ Elyashiv, and he argued that such baking is indeed considered lishmah, since the conveyor belt is already operating at the moment the matzos are placed in the oven, therefore, the continuation is associated back to the ko’ach gavra [direct strength of man who placed it there] and is like the case of shechitah using a knife attached to a waterwheel which is considered ko’ach gavra and valid. Additionally, if the matzos had remained in the same place, they would have been baked, and what do we care if the oven moved them forward and baked them there? And to strengthen this argument, special burners are added to the beginning of the conveyor belt.
Ultimately, these avreichim abandoned their idea, because the matzos came out very brittle, and it was barely possible to eat them, and it certainly wasn’t considered oneg Yom Tov to eat such matzos.
