Many days Covid 19 or not I spend some time learning how to make things. Sometimes I use what I learn right away, other times what I am learning is for future activities. Today I was learning more about the Japanese woodworking art of making Kumiko panels. I have in storage a lot of thin planks of old growth Alaskan spruce. They are "seconds" gifted to me by a sawmill/factory that makes blanks for guitars and other similar body shape stringed instruments. A very nice wood to use for this purpose. I will take advantage of that free wood to make my own LED light covers and for other small items to generate some income.
So what am I talking about, what does Kumiko look like? I don't have permission to use anyone's image of this so I am posting a link to an image search using the keywords: kumiko panel light
https://www.google.com/search?q=kum...ULHDQIHQn8BMAQ_AUoAXoECCoQAw&biw=1824&bih=854
I like the looks of the Japanese Kumiko lattice patterns. It is an ancient craft using small pieces of wood arranged in geometric patterns. Being an ancient art it is traditionally done with hand saws and hand planers using only a few simple jigs for making the angled cuts and bevels.
Of course it can be adapted to modern tools for preparing the wood into small smooth strips that then get cut to size. Learning it is not difficult but it does require a lot of patience because there are lots of little fiddly bits. There are quite a lot of youtube videos that teach how it is done both with the traditional hand tool methods as well as with modern power tool assistance. So if you have the bandwidth that is a great place to go to begin your education in techniques both with traditional methods and newer hybrid methods. For the final angle cuts on the ends of the pieces the way to go is to use a hand plane with a jig as it leaves a smooth surface that needs no sanding and it is easy to sneak up on the exact fit of a piece in a complex intersection.
One thing for RV dwelling that it be used for is to make very attractive lightweight light fixture covers that can be used over LED lights. These would certainly make a product that could be sold for some extra income as well as for personal use or a hobby activity. There is enough of a challenge to it that it can consume many happy hours exploring designs of patterns and objects to use the kumiko panels in.
As to the wood to use for Kumiko, it needs to have a fine straight grain. Bamboo lumber strips were also a common material used for making kumiko panels. Woods could be cedar, fir, spruce. Basswood could work andit is available pre cut into small strips for model making use. Balsa is rather fragile but would be suitable for experiments and it is sold in small strips in many hardware stores. As hardware stores are open during Covid 19 shutdowns that might work to get started playing with this woodworking technique. You can also purchase saws and block planes there.
The patterns can be very simple, rectangular grids or very complex grids with a lot of intersections and angle. You can design them using graph paper or using a computer graphics program. There are many free graphic programs and CAD programs that will allow you to easily offset lines and rotate them to specific angles and trim them to length.
I have previously made as commissioned pieces, a birdhouse as well as a very large outdoor light fixture with a Japanese influence. They have a simple rectangular lattice pattern that I created in Western Red cedar using my tablesaw to size the wood and an overhead router to cut out the material to make the overlapping intersections. Too large of objects for life in a small travel trailer unless I make them much smaller in size. The light fixture itself is 46" tall excluding the base. The designs for these objects are my own original work.