I have been asked several times recently about doubleweave on a Rigid Heddle loom so I thought I'd do a step by step picture tutorial. By far, the best resource I've found on the subject is "The Weaver's Idea Book, creative cloth on a rigid heddle loom" by Jane Patrick. I think it is an essential for every rigid heddle weaver.
I think I nearly turned my brain inside out trying to figure out the threading diagrams online for two heddles. I know it seems daunting, but you just have to do it and after a minute or two, you'll get it.
Ok, let's start with the threading. When direct warping a rigid heddle loom for doubleweave, you need to have 4 threads per dent. For this example I am using 8/2 unmercerized cotton and two 10 dent reeds on a 15" Flip Loom. This will give me a set of 20epi for two heddle plain weave and 10epi per layer for doubleweave.
Here you can see 4 threads through each slot. The next step is to take one thread from each slot and sley it into the hole directly to the right, like this....
So, onto the 2nd heddle. Place the second heddle in front of the 1st heddles. Take a close look at the threads.
Take the 1st grouping of 3 threads from the rear heddle and drape them over top the front heddle, like so....
Take the left most thread and sley it in the corresponding slot in the front heddle.
Then take the 2nd thread and sley it through the next hole.
Now take the 3rd thread and sley it through the next slot. Next, take the hole thread from the rear heddle and sley it through the same slot as the last thread in the front heddle.
Continue across, sleying the 3 slot threads from the rear heddle into the front heddle as follows: slot, hole, slot. The hole thread from the rear heddle will always go in the last slot you sleyed in the front.
Now that all the threading is done, it's time to tie the warp into the front beam. I do this with both heddles in the Up position. Once you have adjusted your tension, it's time to spread the warp and check for threading errors.
Oops, I found two pairs of twisted warp threads.
Now you must untie that group of warp threads and try and figure out the threading mistake. Embrace the mistakes!!! Everyone makes them, you just need to use them as a self-teaching tool. This goes for knitting and crochet as well. Don't give up. Figure out the mistake and why it happened. Next time, you either won't make the same mistake, or you'll know right away how to fix it.
Ok, now onto the pickup sticks. Put both heddles in the down position. Take stick A and pick up every other thread like this.....
Now, turn the stick on edge. Insert another pickup stick in the shed formed behind the heddles. Remove stick from in front of the heddles.
Now, place both heddles in the up position. Slide stick A forward to the back of the heddles. You will see that a small shed is formed. Insert stick B in the shed like this.....
Slide both pickup sticks to the back of the loom. You're all done! Let the Doubleweave commence :)
To see a video of how to weave double wide cloth on a rigid heddle loom, please visit my YouTube channel at the following link.......
Happy Weaving!