Tools of Renoobal
June 16th, 2009Brass & Threading
Made myself a couple of new lathe tools. Not sure how well they’ll work.
I started with brass. I used 1/2″ HSS, and I just eyeballed it. I used the grinder and finished on a diamond stone. Here it is.
I wanted to make a tool for internal threading, so I needed a small piece of HSS to start with. I decided to use 1/4″ HSS with 10% cobalt. To get the angle, I put Dykem on the tool, clamped a fish to it, scribed outside of the fish, and ground to the lines. The Dykem turned brown from the heat. I had no idea that was coming. I had assumed it was made to stand up to heat.
Let me know if you see anything wrong with these.
The mill’s delivery date got pushed back a week. Imagine my shock. Should be here about a week from now.
June 16th, 2009 at 9:48 PM
Hi Steve.
I was wondering if you still had your birds? You haven’t mentioned them in a while.
Carl
June 17th, 2009 at 8:36 AM
You should probably ask if they still have me. They’ll only be middle-aged when I croak!
June 17th, 2009 at 9:53 AM
Maybe you can chuck Marv in the four jaw and spin him in back gear when he wants some attention. Sort of a organic winged fan to blow away the metal chips
I say that jokingly…of course…
June 17th, 2009 at 10:00 AM
He barely fits in my milling vise.
June 17th, 2009 at 1:44 PM
Wouldn’t Marvin’s beak make some sort of useful turning tool? Maybe for cutoff work or external threading.
Just don’t let one of your fingers be his workpiece.
Jim
Sunk New Dawn
Galveston, TX
June 17th, 2009 at 5:01 PM
“He barely fits in my milling vise.”
Does the fact that Steve knows that surprise anyone?
June 17th, 2009 at 6:23 PM
The tool needs to have an angled trailing edge so it doesn’t heel on the thread. Otherwise, it’s fine.
Dykem browns readily but it’s supposed to. You can use a parrafin candle with a badly trimmed wich to leave a black layer of soot on thepart, and scribe that. It won’t change color. And it’s capable of some finer detail.
Otherwise, nice work.