Members catskin Posted June 12, 2014 Members Report Posted June 12, 2014 I found a brother DB2-B722-405 F40 machine for sale, and a friend is interested in it and asked my advise. I saw the machine and it appears to be needle feed walking foot with also bottom feed dog, all of which seem good. But I am wondering what they were built to do? Are they a machine with oil bath that needs to run FAST in order to oil properly? Would it be suitable for sewing upholstery leather and vinyl? What would the max thickness be for it? How thick thread could it use? Would the toothed bottom feed dog harm the leather and vinyl? Could the feed dog be replaced with a smooth one or removed and a slotted plate be put in its place? Thanks in advance for any insight you can give. Quote
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