Doug:
so happy you asked
i make up wood coil forms, and then make a trial coil to check fit, if ok all is good to go
if not i trim the form to correct the fit, wash rinse repeat as necessary
as for mag wire, i buy it whereever i can find it, surplus outlets have been a good source
the other stuff, slot paper, top stops etc i get from local motor shops... not all in the same place
is the key.
i have also been sent to a huge warehouse (because the motor shop didn't want to sell to me and
figured the warehouse would blow me off) at the warehouse they gave me samples (full sheets of various
thickness slot papers) and all sorts of top stops etc. all free because they didnt have a way to sell it in small quantity
you just have to ask and i ask alot everytime i see one of these places,, and then i write down their address
so i can come back in the future.
sleeving i got miles of it for something like 5 cents a pound surplus in all sizes up to an inch so i have several lifetimes of it
epoxy or varnish i get from other rewind suppliers
i also have bought every book on rewinding from early in the last century, where the process is laid out for guys that
were probably not the highest educated at the time, so the processes are broken down quite well.
they also did not have the high tech stuff we have today, so they used lacing methods to secure coils rigidly
so i learned to do that properly as well.
i figure if the old DCC (double cotton covered for those that don't know) wire was used a century ago, and methods to make coils were done with wood forms then
i can therefore use enameled wire and higher tech liners etc and get at least as good a product as they produced.
many of those old motors still run today, so they did something right in my opinion.
i love the old books with all the illustrations, procedures and materials,,,, and to a lessor extent their math
but i don't really need much math save for coil turn count and guage size to rewind a stator.
all i really need to do is take my time and map out what was on the stator core, placement, wire size, turn count
and replicate it. then lace it properly and secure it with varnish or not depending on my intended use.
bob g