screwcutting

[Gss]

I would like to have a go at screwwcutting on my new Hafco lathe,
Problem is my lathe doesnt have a chaser dial.

although i did see on a site somewhere recently where someone had fitted an indexed wheel to the tailstock end of the leadscrew.

would that serve the same purpose ??

[fireball168]

Or you could do it without one....

http://www.armurerieduroi.com/pages/lathe/lathe_thread_cutting.html#15

Here's some info on building your own threading dial, and kits:

http://www.armurerieduroi.com/pages/lathe/lathe_threading_dials.html

[WhisperFan]

The threading dial is only necessary when you disengage the leadscrew before backing up the carriage.

If you leave the leadscrew engaged and stop the lathe, back out the compound, reverse the lathe, and then move it back in before forwarding it again ... you don't need a threading dial.

[Gss]

The threading dial is only necessary when you disengage the leadscrew before backing up the carriage.

If you leave the leadscrew engaged and stop the lathe, back out the compound, reverse the lathe, and then move it back in before forwarding it again ... you don't need a threading dial.

Yes the reverse method will work in a lot of cases, but I am scewcutting up to a large shoulder, and without a brake (on the machine) it is to risky

[Gss]

bumpity bump

[DonT]

A little off topic but still has to do with screw cutting.

A number of years ago I acquired my first lathe wiht a quick change gear box, a 9" South Bend. After becoming accustom to how it all worked, I had had a little Atlas 6" prior to this, I proceeded to attempt to cut my first set of threads.

Dilegently following the instructions I had I set everything up, chucked a piece of hex stock I had and proceeded to turn the stock round where the threads would be and then started cutting threads. I probably took lighter cuts than necessary and continually checked the threads with a nut for fit.

Once completed I parted of the bolt, cleaned up the head and proceeded in to show my "Great Accomplishment" to the only person available at the time, my wife.

When I came into the house she asked what I had been doing the last couple of hours in my shop. I proudly produced the bolt and told her "look what I was able to make on the lathe I just got!". As good spouses do she commented how nice it looked and that she didn't realize a lathe could do this.

As I turned to go out the door, heading back out to the shop all pleased with my accomplishment, she said "I have a question, couldn't you have just driven up to the hardware store and bought a bolt if you needed it since the store is only 5 minutes away rather than spend 2 hours making one?".....

"Probably" I responded and with my newly created prize in hand I continued out the door and back to my shop. That first attempt at screw cutting has long since disappeared, going into a project somewhere along the line. But I still fondly remember the feeling of successfully completing my "2 hour threading project"....

DonT