How Do I Fix This?

[mzvarner]

I am making a pen out of brass for my dad's 60th Bday. The part on the right is the cap with a threaded section to help apply counter pressure to the ink cartridge. The part on the left is the pen body. I have already tried to file down some of the male threaded section thinking maybe it was too long. It helped close the gap some but not all the way. I am trying to be careful because I dont want there to be any play so that when writing pressure is applied the ink cartridge shifts up and down.

Do I chuck up the pen body and take a few thousandths off of it? My plan was to turn the entire pen (when finished) to the same diameter because you can see it is off some. I assume this is because of the tolerances in my Chinese made 4 jaw chuck (I really need to get a 4" 3 jaw). Between that and my dial indicator I can only get 1-2 thousandths off.

 

[Steve Shannon]

Can you make a contrasting spacer to fill the gap and then turn it all to size?

 

[cathead]

Maybe try Dykem and see if you can tell what needs to be worked on.

 

[ba12348]

It looks to me like your threads aren't straight, were they done with a tap and die, or on the lathe?

 

[chips&more]

Sorry, the one pic is a good start. But we need to see it unscrewed. Without more pic’s all you will get is random help.

 

[mzvarner]

Thanks for the advice guys... Turns out I forgot to cut a relief. As soon as I cut one using a part off blade everything lined up flush

 

[British Steel]

Glad you got it sorted, that was my first guess - a contrasting spacer could look good, though!

Dave H. (the other one)