Duration: 13:19

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Made a cleaver out of an old woodworking circular saw blade.

These old blades are all made of decent tool steel that can be hardened to a decent degree (this particular blade ended up with hardness between 50 and 55 on the Rockwell scale).
Of course, if you plan to make one yourself be sure to test if the steel can be hardened so you don’t waste time in case it’s not.
The unusual design is a result of the material constrain I had since the saw blade wasn’t all that big to start with. For once it has been real fun to limit my design based on material and I ended up liking the end product quiet a lot!

The handle materials were made in past videos.
Stabilizing wengè:
https://youtu.be/E-P3KWctkk0
Making white linen micarta:
https://youtu.be/oxzVWyvLHmE
I say it has been a great opportunity to make a knife completely out of recycled material and stuff that I made previously on the channel.

Index of operation and materials:
0:06 Tracing cutlines
0:16 Cutting with angle grinder and cut off wheel
0:48 Anhealing steel at 860°C for 10 minutes and leaving it to cool inside the oven
1:05 Drawing design
1:20 Cutting bulk material on metal cutting band saw
1:31 Grinding to shape with 2x72 belt grinder
2:06 Drilling pin holes 3, 4 and 6 mm
2:30 Hardening, heating up to 810°C, holding for 10 min and quenching in hot vegetable oil
2:55 Tempering, 2 hr at 200°C
3:03 Grinding in bevels with 2x72 belt grinder
3:31 Hand sanding up to 400 grit
4:09 Etching with ferrich chlorice
4:17 Neutralizing acid with water and sodium carbonate solution
4:25 Cutting to size handle materials
4:42 Grinding square to prevent gaps
5:10 Glueing up liners with epoxy resin
6:00 Glueing up scales, multiple steps to play safe
6:46 Cutting to size with band saw
7:12 Match drilling scales for pin holes
7:37 Removing bulk material from scales
8:00 Grinding and finishing bolster area to prevent scratching the blade finish once scales are glued
8:27 Always degrease parts before glue
9:02 Cleaning squeezout with cuetips and nitro solvent
9:28 Shortening pins
9:40 First shaping with fine wood rasp
10:20 Hand sanding up to 1200 grit
10:34 White mineral oil
10:45 Adding microbevel with 1000grit belt
11:07 Hand stropping on leather with fine polishing compound

Thanks a lot for watching, I hope you liked the video!
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