Have rewarped the loom to practice the exercises in Carol Russell's book, Tapestry Handbook: The Next Generation. I was having some problems with losing tension early on but that is now fixed, at least temporarially. Now I am haveing real problems with the edges waisting - I have undone this several times but no matter what I do in terms of thread placement this weft for the header continues to gravitate to the centre. The segments of 'thin fuzzy wool' as described in Russell's book is supposed to have solved the problem allowing the header to have straight edges.
Any suggestions in terms of technique? In the picture below the first weft is 2 ply carpet wool, the second in an acrylic, the third is a thin 'baby wool' and the last, the header, is 12/9 seine twine, the same as the warp. The warp is 6 epi - every second dent in a twelve dent reed.
This is my first warp on a floor loom, a four shaft countermarche.
Thanks for any suggestions. Happy to pull it apart again until I get it right.
Hakim