Although those pics are on a 66, it fits and behaves pretty much identically on a 15, 201 and 221/222. I'd expect any standard-issue vintage low shank singer to have identical feed dog and needle spacing unless it was purposely fitted with an optional, special-purpose set of dogs and throat plate.
Worth noting: I figured out why the feed grippers sit so far back, and it is very much on purpose. It has to leave 50% of its travel unused in normal operation so it can work while backtacking. It has to be able to move the same amount back as forward. Amusingly, it doesn't leave enough space. Thrown into full reverse, there's not enough room for the gripper feet to feed the whole distance back.
So the weird fit is not a manufacturing error or strictly design error-- it's just a lazy/cheap design compromise that leaves the whole thing seriously lacking (and flimsily constructed).
Re: AlphaSew P60400
Date: 2008-05-30 04:34 am (UTC)Worth noting: I figured out why the feed grippers sit so far back, and it is very much on purpose. It has to leave 50% of its travel unused in normal operation so it can work while backtacking. It has to be able to move the same amount back as forward. Amusingly, it doesn't leave enough space. Thrown into full reverse, there's not enough room for the gripper feet to feed the whole distance back.
So the weird fit is not a manufacturing error or strictly design error-- it's just a lazy/cheap design compromise that leaves the whole thing seriously lacking (and flimsily constructed).