PM-45

[Robert166]

Okay maybe a dumb question, are the threads on both ends of the head stock the same? I can thread a faceplate on the inboard side of the headstock, but not on the outboard side. The threads appear to be reversed. I want to mount a hand wheel on it so I can had thread a large piece for turning. But nothing I have will thread onto it. Both ends are 1 inch by 8TPI

 

[Mike Davis]

Yes, I believe they are reversed.

 

[Robert166]

I tried searching for "reversed thread headstock faceplate" in numerous ways but I am unable to locate one. Or don't know what I am looking at when searching. Mike the old wise one, can you help? Or tell me who on here is a lathe guru?

 

[pop-pop]

But nothing I have will thread onto it. Both ends are 1 inch by 8TPI
View attachment 210769

Just like on your bench grinder, one side is right hand thread and the other is left hand. This is so that the natural rotation will tend to tighten the nut or chuck rather than loosening it.

 

[Roy G]

Robert, Delta made a 6" faceplate that was threaded both RH and LH. It is 1"x8tpi like your lathe so it should fit.

Roy G

 

[bob vaughan]

I use one of the old cast iron 46-127 6" faceplates on my 45, but mostly as a hand wheel.
Search for 1-8 LH thread faceplate. Klingspoor may even have one. I see they have the RH threaded version.

 

[Cuthriell]

McMaster Carr should have 1-8 left hand nuts. I made a faceplate using one of them and mounted the nut to a micarta plate using 4 small screws/nuts which you can face off yourself. You could also weld a steel plate to a nut for a bit more cost.

 

[Robert166]

Found this, will try it

Insert - 1" x 8 TPI, LH Thread at Grizzly.com

These threaded inserts adapt the G1194, G1082 chucks and the G1633 face plate to any lathe spindle, whether it's a Grizzly or another brand. Just match up your spindle from your lathe to the corresponding inserts when you order one of our chucks. It's that simple! Each one includes mounting...

www.grizzly.com

 

[Mike Davis]

https://smile.amazon.com/8-86inch-Ultimate-Handwheel-Adjustment-Drillpress-Tailstock/dp/B08L5YLMXH/ref=sr_1_39_sspa?crid=C4YSMQPMEVK8&keywords=12%2Binch%2BHand%2Bwheel%2B1-8%2Bthread&qid=1653596509&sprefix=12%2Binch%2B%2Caps%2C53&sr=8-39-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzTjJBODAzT0U3WlZNJmVuY3J5cHRlZElkPUEwNDI4MTY3SjRVSVVENzJPVU9aJmVuY3J5cHRlZEFkSWQ9QTA3OTk1NzcySklUOVgxNzdMMzBMJndpZGdldE5hbWU9c3BfbXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&th=1

 

[Dee2]

I do have one of those left, and right hand, threaded faceplates for my hot-rodded Rockwell. Took it to an older machinist one time to get the face trued. He had never seen anything like it.

 

[Hmerkle]

@Robert166 Couldn't you simply turn a handwheel... since you have a lathe?

 

[Robert166]

That’s the plan, just needed the insert

 

[Robert166]

https://smile.amazon.com/8-86inch-Ultimate-Handwheel-Adjustment-Drillpress-Tailstock/dp/B08L5YLMXH/ref=sr_1_39_sspa?crid=C4YSMQPMEVK8&keywords=12%2Binch%2BHand%2Bwheel%2B1-8%2Bthread&qid=1653596509&sprefix=12%2Binch%2B%2Caps%2C53&sr=8-39-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzTjJBODAzT0U3WlZNJmVuY3J5cHRlZElkPUEwNDI4MTY3SjRVSVVENzJPVU9aJmVuY3J5cHRlZEFkSWQ9QTA3OTk1NzcySklUOVgxNzdMMzBMJndpZGdldE5hbWU9c3BfbXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&th=1

That is a very nice hand wheel! Arrived yesterday and have it installed already. Need to bookmark that site for sure.

 

[Oka]

Awesome now I know what that nut is for..... but yes most of the older lathes have the outboard shaft of the shaft left handed threads.

Found this, will try it

Insert - 1" x 8 TPI, LH Thread at Grizzly.com

These threaded inserts adapt the G1194, G1082 chucks and the G1633 face plate to any lathe spindle, whether it's a Grizzly or another brand. Just match up your spindle from your lathe to the corresponding inserts when you order one of our chucks. It's that simple! Each one includes mounting...

www.grizzly.com

 

[bob vaughan]

Awesome now I know what that nut is for..... but yes most of the older lathes have the outboard shaft of the shaft left handed threads.

At first I took that comment to mean that the newer lathes had RH threaded outboard spindles then I remembered that lots of the newer lathes have a smooth shaft sticking out where the handwheel is held on with a set screw.