Peter Collingwood (2015) discussed several ways of warping the loom. I picked the one that I think is the easiest to learn. The idea is illustrated for tablets with four holes. Clamp the loom in place on a table on one side along the long direction and clamp two boards with pegs at the other end. Start by going through one of the holes of the first tablet, loop around the horizontal rod near the weaver and go in the opposite direction through the second hole. Keep pulling the thread and wind around as many pegs as needed to get the required warp length. End by tying it to the last peg. Follow the same track around the pegs with the other end and cut and tie it around the last peg as well. Repeat for holes three and four and so on for the remaining tablets.
After completing the warping, surplus warp can be braided such that (after tying on the weights) the ends of the cords hang freely just above the ground.
Complete the warping by rotating the loom such that the warp ends hang freely and tie on the weights, one at the end of each cord.
After weaving for some time and collecting the woven band on the rod nearest to the weaver, the weights will reach the level of the table. That is the time to feed more warp by loosening part of the braid.
The most important part to remember is to always pass all threads through the holes from the same side of the tablet as seen from one end otherwise the tablets will not turn!
The layout of the warping setup with the first three tablets warped. If you need a longer warp, you can go back and forth around more pegs.
The first three tablets, from left to right threaded as “S”, “Z”, and “S”. Clamp the tablets in place after warping is complete.
After braiding the cord such that the end will hang just above the ground (left and center) and after tying on the weights, one at the end of each cord (right).
A completely warped loom.
Find a more detailed class handout about brocading on a warp-weighted loom at:
Collingwood, Peter (1982) The Techniques of Tablet Weaving, Echo Points Books & Media (Vermont)