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Powered tapping

 

I'm sorta amazed how many youtube videos show guys tapping under power.

I know it's a bit of a must in a production setting, but I was always taught to tap by hand - ideally using some sort of guide or fixture.

Do you guys do a lot of tapping under power?? Just the idea makes me nervous.
 

I some power tapping on my mini lathe and mini mill but I prefer hand tapping with tap being in proper alignment.? I do not have a power tapping device and only power tap when I am confident that the tap will not break.

Have A Great Day??
Tracy Ranson


On Sun, Mar 17, 2024 at 11:21?AM chrisser via <chris.kucia=[email protected]> wrote:
I'm sorta amazed how many youtube videos show guys tapping under power.

I know it's a bit of a must in a production setting, but I was always taught to tap by hand - ideally using some sort of guide or fixture.

Do you guys do a lot of tapping under power?? Just the idea makes me nervous.

 

Actually power tapping is very easy.
Just tighten the tap into the tail stock chuck
Then back the tail stock?hand wheel?until the chuck releases.
Then move the tail stock?and chuck toward the workpiece?and lock in place.
Lube the tap, start the lathe, and using your hand push the tap into the work piece.
When the tap bottoms out release your grip on the chuce.
Stop the lathe and reverse it to back the tap out.
The maximum tap I use in steel is 5/16-18.
I have done brass using a 3/8-24 tap.
John Mattis (retired mechanical engineer)

On Sun, Mar 17, 2024 at 11:21?AM chrisser via <chris.kucia=[email protected]> wrote:
I'm sorta amazed how many youtube videos show guys tapping under power.

I know it's a bit of a must in a production setting, but I was always taught to tap by hand - ideally using some sort of guide or fixture.

Do you guys do a lot of tapping under power?? Just the idea makes me nervous.

 

Lately I have just chucked the tap into my drill and ran it into the piece being tapped, usually steel.
This is since I found these:?

Taps of Amazon. I do not use a guide. Just drill the clearance hole and tap all free hand.
Ralph?


On Sun, Mar 17, 2024 at 3:20?PM John Mattis <john.mattis@...> wrote:
Actually power tapping is very easy.
Just tighten the tap into the tail stock chuck
Then back the tail stock?hand wheel?until the chuck releases.
Then move the tail stock?and chuck toward the workpiece?and lock in place.
Lube the tap, start the lathe, and using your hand push the tap into the work piece.
When the tap bottoms out release your grip on the chuce.
Stop the lathe and reverse it to back the tap out.
The maximum tap I use in steel is 5/16-18.
I have done brass using a 3/8-24 tap.
John Mattis (retired mechanical engineer)

On Sun, Mar 17, 2024 at 11:21?AM chrisser via <chris.kucia=[email protected]> wrote:
I'm sorta amazed how many youtube videos show guys tapping under power.

I know it's a bit of a must in a production setting, but I was always taught to tap by hand - ideally using some sort of guide or fixture.

Do you guys do a lot of tapping under power?? Just the idea makes me nervous.

 

I've not done any power tapping wit my mini-lathe, but I have with my mini-mill.? I remember once that I had a aluminum bushing holder on a John Deere walk-behind snow blower on my deck that was worn to the point that the bushing was slipping in it.? The replacement part was about $6-$70, so I mounted the holder in the fau-Kurt vise on the mini-mill and and would drill, then tap 3 holes 120° apart around the holder.? With 3 set screws, they held the bushing securely.?

It was a great advantage to be able to drill each hole and follow it with the tap in perfect alignment.

ralphie
 

Correction: $60-$70 replacement part

ralphie
 

I done a lot of tapping using power.
Hundreds of thousands of tap holes.?
I used both drill press using a drum switch and tapping head.?

Dave?

Ralph Lehotsky 8:21am? ?
I've not done any power tapping wit my mini-lathe, but I have with my mini-mill

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