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Re: [BKARTS] Alum tawed thongs

Generally, flat tawed thongs would be made from pigskin, because
it is stiffer than goatskin.

You can stiffen goatskin by gluing parchment (flesh-side to flesh-side)
to the goatskin and do your sewing over them.

When I want flat sewing supports I use split thongs.  This only requires
one hole per sewing station.  The thread goes out through the split, then
around under the split thong and back through the same hole into the center
of the section and on to the next.

As to how thick thongs should be, your guide should be what will allow the
cover to open easily, but not flop like a case bound book.

There is a leather working tool which can be set to cut leather (a lacing
tool) but it is just as easy (and cheaper) to simply use a compass to make
some pin pricks in the skin, lay a rule, and cut through the points.

You can certainly use four raised bands, there are historical exemplars,
but odd numbers tend to look better.  Three wide bands on a 20 cm high
text block would look fine; five not-so-wide bands would also look good.

I've looked at the Adam Watson book you mentioned and I'm guessing that
he used one sewing hole at each station, slightly curling the sewing
support as he drew tension on the thread.

Hope this helps.


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