First of all, let me preface this post by saying I have no wood lathe. All of my turnings, for better or worse, are done on a metal cutting lathe.
I've needed some tompions for some time now, but didn't really have anything to make them out of. A few days ago I found a homemade oak turning at a thrift shop. It looked like it was made for some sort of kitchen utensils to hang on.
I bought it (for the princely sum of $1) and knocked the base off, and unscrewed the hooks around the top end. This left me with a tapered oak rod about 18" long, 2¼" in diameter on the big end, and 1¾" on the smaller end. From this I turned three one-piece tompions (with some left over).
Here are the fruits of my labor, in varying states of finish:
The tompion on the far right is for the 2/5-scale golfball Coehorn. It was made yesterday and has already been sanded, buffed, and finished with two coats of natural WATCO Danish Oil.
In the center is the tompion for the ¼-scale "Li'l Brudder" Coehorn. It's just as it came out of the lathe, no finish sanding or buffing has been done yet.
On the far left is the tompion for the ¼-scale Napoleon. It's been finish sanded, and buffed with 0000 steel wool. It needs the O-ring groove touched up a little bit and it will be ready for the Danish Oil. While the O-ring will seal the bore, that's not its intended purpose. The O-ring is there to secure the tompion in the bore so it won't wiggle out when the cannon is being rolled around.
The tompions for the mortars, with their upturned barrels, don't have (or need) an O-ring.
I wanted to go ahead and post these photos because it may be a couple of days before I can finish the two topions that I made today. I'm about to immerse myself in the Zen art of motorcycle maintenance.
When I get them all finished, I'll try to post a better group shot. It's cloudy and raining here, hence the poorly lit indoor photo.