2 Attachment(s)
Rota Broach From Rossbotics plans on HMT
This was my first simple Rotabroach.
https://www.homemadetools.net/forum/...ch-plans-71414
I needed something heavier so I made a copy of Doug Ross's super broach:
https://www.homemadetools.net/forum/...2179#post95664
Using annular and thrust bearings this one reduces much of the friction generated by the broaching action.
In the second picture I have made an extra spindle that can hold my older rotary broach cutters.
I wanted to be able to use the smaller tools in my new broaching tool.
This tool cuts like butter. I ran it thru a 3/4" thick piece of aluminum and it ran smooth as silk. Keeping cutting oil on the broach the entire way.
Here are a couple of pics of my copy of Rossbotics broach:
Cheers, JR