Feb 16, 2015

Mjolnir

Unlike Mjolnir, my mighty hammer was not forged by dwarven brothers. Nor does it have a short handle. And it doesn't have the power to level mountains. So perhaps it is nothing like the fabled weapon of the thunder god, but I made it and that counts for something, right? I based my plans off of Steve Ramsay's "Thor's Hammer" on Woodworking for Mere Mortals.

I started with a board I found in the 'exotic cutoffs' bin at Woodcraft. I'm fairly certain it is walnut but I don't know for sure. It is pretty rough on one face, probably from the saw at the mill.
Starting board.
I cut a piece to 2 1/2" wide. The board was about 7" wide which is a bit wider than I want but leave me room to make mistakes. I next cut the cavities in the inner pieces. I don't have a drill press nor do I have a Forstner bit to cut large holes like Steve does so I improvised and used a smaller paddle bit and my jigsaw to finish them off.

About 7" x 2 1/2" x 3/4".

After drilling holes.

And finished with jigsaw.
These cavities will be where the real weight of the hammer will be: fishing sinkers. I cut these end pieces off at a 2° angle to held make a wedge where the handle will go. I also cut two more piece at about 6" for the sides.

Slight angle between the inner pieces.

All pieces for the head.
I glued the inner pieces to one side piece first. Using the other side piece on top, but not glued down, to provide a clamping surface I let the glue set up before adding my weights. I managed to get quite a few into the cavities but you can still here some movement when shaking the hammer. I then glued the other side on and worked on the handle while I waited for that glue to set.

Gluing the inner pieces to one side.

Lots of weight added.
I followed Steve's process on creating a simple tenoning jig out of some 2x4 stock I had lying around. It probably isn't the most accurate jig but it gets the job done for this project. I used a scrap of purpleheart I had left over from the table saw sleds I made some time ago.

Using the tenoning jig.
I then cut the wedges for fastening the handle into the head of the mallet. These were cut from the walnut board I had and were also cut at a 2° angle. Because I wasn't very accurate with my tenoning jig I had to make wedges of various sizes.

Wedges and handle.

Head glued up.
To add a little style to the head and comfort to the handle I tilted my table saw to a 20° angle and trimmed off the corners of both parts. I ran the handle through in different orientations to smooth out any hard corners. Afterwards I put it all together by gluing the wedges into the top of the mallet head in between the handle's tenons. I coaxed these in with my regular hammer to ensure a snug fit. I let the glue set up and then cut the excess off with my Japanese razor saw.

Added wedges.

Trimmed down.

Finished with boiled linseed oil.
After a bit of sanding to smooth out the top and then some finish sanding to smooth out the handled I applied a coat of boiled linseed oil which I can renew as needed. I do plan to add leather patches to both sides of the mallet head to help protect my work pieces. I do need to practice my tenoning as the mallet head doesn't quite sit right on the shoulder cuts of the handle. Being a shop project I wasn't concerned with the woods used but I noticed that the walnut and purpleheart don't really compliment each other very well. Overall I'm quite pleased with the end result and look forward to using it in the shop.

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