Lathe hss bit grinding jig

[Mike8623]

Does anyone know of a simple homemade jig or fixture for grinding your lathe hss tool cutters. The simpler the better.

 

[mmcmdl]

Are looking for an actual fixture or a gage to measure the tools ?

 

[Mike8623]

Looking for the plans or a picture of a fixture that will allow me to accurately grind the angles for lathe hss cutting bits. I've got items to measure angles. Looking for the simplest jig I can make.

 

[mmcmdl]

I take it you have a surface grinder ? Most bits are simply ground by hand on a bench grinder or abrasive belt .

 

[Mike8623]

I'll be using a bench grinder.

 

[Mike8623]

Just had to add this gal

 

[DAT510]

If you are looking for a "Jig" type of method to grind your HSS lathe bits, you might look into Tangential cutter bits. There are a number of designs out there that position the HHS in a jig that creates a Diamond faced cutter bit, which is then held in a tool holder that places the bit at a tangent with the work piece.

Here's a company that makes both the Grinding fixture and tool holder, but there are numerous diy designs floating out there on the web.

The Diamond Tool Holder

Hope this helps.

 

[Mike8623]

I thank you so much for your input

 

[Nogoingback]

+1 on the Diamond Tool holders. The grinding jig that comes with them isn't a universal tool grinding jig, but rather
useful for the specific grind required by the Diamond. They are useful tools however: I use mine all the time.

 

[benmychree]

The grinder, the fingers, and the eyes are all that are required.