No you are doing something wrong my guess is that your crossfeed isn't squared 
to the axis of the workpiece

Also make sure that the cutting edge is on center to the workpiece height or 
just slightly below, below will leaves a small tit os material but that little 
bit is easily filed off or faced off with a second op
Sent via BlackBerry from T-Mobile

-----Original Message-----
From: "Doug Conn" <[email protected]>
Sender: [email protected]
Date: Tue, 7 Aug 2012 23:07:45 
To: <[email protected]>
Reply-To: [email protected]
Subject: [TANKS] lathe question

Hello -

 

I have another 'Machining 101' question. I have a parting tool for my
mini-lathe just like the one shown below. The bit sits in it a few degrees
off from vertical. When I use it, the parted piece has a convex,
cone-shaped, face. I want a straight, clean, cut. Is this the normal
construction for parting tools ? Am I using it wrong ? Is this the wrong
parting tool for me ?

 

I appreciate any advice.

 

              Thanks a lot,

              Doug

 

HF_tool.jpg (20563 bytes)

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