|Project by Levex||posted 10-21-2015 12:39 AM||1091 views||8 times favorited||5 comments|
Here’s the most recent bowl carving tool that I’ve built, a modified elbow adze.
For this blade I purchased a couple of feet of annealed 4140 alloy bar stock from a specialty steel shop in town. The cost was $16 LF for a 2” wide by 1\4” thick bar.
I cut the blade to length and width with a hack saw and ground out the edge on my bench grinder. I put a very gentle sweep on the blade, (about a #2 sweep), by heating it up with a torch and bending it over a very small anvil I have. I then drilled and counter sunk two holes for screws, (before hardening the blade this time).
It took two tries to get the blade to properly harden. I didn’t get it hot enough the first time but was successful on the second try by getting it orange hot with my torch. I quenched it in automatic transmission fluid and tempered it on a bbq for an hour at around 400 degrees C. I’m really pleased with how well the blade turned out. It was a bit of work getting it properly sharpened but it is still holding a good edge after a lot of time spent whacking away on a piece of maple.
The handle was made from some oak I salvaged out of a pallet. I’ve got a bunch of this stuff and it’s great material, nice and hard, with just a few nail holes for character. To keep the handle as strong a possible I made it in two pieces to keep the grain running in the right direction. I hand cut the saddle joint and glued it up with PL Prem.
The blade is attached with two #10 screws, two part epoxy, and wrapped with paracord for good measure.
I’ve never used an adze before and I’m having as much fun using this one as I did building it. I’ll build another one as soon as I can make or find a swage block to create a blade with an even greater sweep.