Now I’m going to show you my method for making a “shrinking” stump. Like a lot of things, there isn’t necessarily a right or wrong method to do this. As long as you are able to produce results in the end, who cares how you get there? Earlier, we went over how to stretch and shrink metal using a shot bag and flat stump. The theory behind a shrinking stump is very much the same. Create a “tuck” in the sheet and planish it back out to create a shrink. However, using a shrinking stump is much more aggressive and can shrink a lot of material quickly. This is a good thing. The two methods still have their place.
In order to make a shrinking stump, the first thing you are going to need is obviously a tree stump. The stump can be as large or as small as you want it to accommodate the work you will be doing. You will obviously want to choose a stump that is solid and hard. If you can get it, a hardwood like oak would be a good choice for a shrinking stump that should provide a lifetime of service.
To show you how simple a shrinking stump can be, however, I am going to make a shrinking stump out of a wooden stool I made from a slab of a solid elm tree trunk. I don’t know how long it will last, but I’m positive it will work well and will be light and portable. I’ll even still be able to use it as a shop stool!