Making A Rotary Broach - Cutting Hex Sided Holes (DIY)

G'day everyone,

In this video I will be showing you the journey that I undertook to try and cut my own hex sockets. To do this I need to make use of a rotary broaching tool. There are commercial versions of this tool, but they are out of my price range for a hobby shop, so I decided to make my own. This will be a rotary broach tool for the lathe.

Making one should be a pretty straight forward job, but there are fine details that need to be done correctly in order to do this correctly. It took me a few weeks and several revisions to make this work. I hope you enjoy this video.

The two links below are well worth checking out. They provided me with a useful direction to go in when designing this tool.

The Recreational Machinist's Video -    • Rotary Broaching a Hex Key Recess on a Min...  
http://mikesworkshop.weebly.com/

Timestamps
0:00 - Intro
1:06 - Making The Tool Housing
2:34 - Machining The Housing
3:48 - Machining The Shaft
5:06 - Machining A Backstop
6:21 - Finishing The Housing
7:16 - Cutting The Dovetails
8:02 - First Assembly
8:45 - Making The Broach Cutters
10:17 - Adding The Ball Bearings
10:48 - First Test Cuts
12:00 - Making A HSS Cutter
12:54 - Using The Rotary Broach

#DIY #Machining #RotaryBroach

Mill - Sieg X2.7l
Lathe Sieg c3 7x14 Mini Metal Lathe