Mellor lathe.

[Richard.]

Idle curiosity. Are you feeding with the changewheels instead of the apron feed?

If so no wonder it's fast mate.

I don’t understand. My feedrate is done with change wheels.

 

[eLuSiVeMiTe]

I don’t understand. My feedrate is done with change wheels.

He has a second screw at the rear which drives the apron.
Works on a reduction in the apron and traverses on the rack the handwheel turns on at 2 to 1

 

[Richard.]

He has a second screw at the rear which drives the apron.
Works on a reduction in the apron and traverses on the rack the handwheel turns on at 2 to 1

Mine doesn’t work like that. Final drive from the gear reduction goes straight to the lead screw and the half nuts grab and carry.

 

[eLuSiVeMiTe]

Mine doesn’t work like that. Final drive from the gear reduction goes straight to the lead screw and the half nuts grab and carry.

Aye it's setup so the leadscrew is only used as yours is for screw cutting. See the link above. Explains it better than me.

Mine has a dog box with a reduction in it to reduce speeds for facing without changing wheels.

 

[God mode restorations]

The lead screw at the back drives the power cross slide. Apron is powered by the front lead screw. Kind of confused

 

[God mode restorations]

Mine doesn’t work like that. Final drive from the gear reduction goes straight to the lead screw and the half nuts grab and carry.

That's what mine does

 

[eLuSiVeMiTe]

From the above link I posted.
http://www.lathes.co.uk/mellor/

 

[Richard.]

Aye it's setup so the leadscrew is only used as yours is for screw cutting. See the link above. Explains it better than me.

Mine has a dog box with a reduction in it to reduce speeds for facing without changing wheels.

Wish mine worked like that. I wouldn’t have to swap them bleeding wheels about every time I went from a thread to a finish.

 

[eLuSiVeMiTe]

Wish mine worked like that. I wouldn’t have to swap them bleeding wheels about every time I went from a thread to a finish.

Only found out when I opened it up. Leadscrew wasn't engaging the half nuts when I bought it.
Nice and simple but works perfectly.

Looks like the nut above and to the left of the apron traverse is the nut in question to engage.

 

[God mode restorations]

From the above link I posted.
http://www.lathes.co.uk/mellor/View attachment 136892

Got ya

 

[God mode restorations]

So the lead screw at the front is for screw cutting only. Power feed and cross slide works from the back lead screw. Had to read that a couple of times as this faffing dyslexic gets the better of me

 

[eLuSiVeMiTe]

Looks that way. Bonus in a way. Can feed fine without changing your wheels out.

 

[God mode restorations]

Looks that way. Bonus in a way. Can feed fine without changing your wheels out.

Yes. You are right. Just fixed it. The engagement leaver was not engaged. The little cog missing is for power slide

 

[God mode restorations]

Looks that way. Bonus in a way. Can feed fine without changing your wheels out.

Yes it's well handy

 

[eLuSiVeMiTe]

Looking at your compound and cross slide they may have had thin sheet steel covers to protect the screws. Worthwhile making some up if they will fit.. Found next to no swarf in mine when I removed it.

 

[God mode restorations]

Looking at your compound and cross slide they may have had thin sheet steel covers to protect the screws. Worthwhile making some up if they will fit.. Found next to no swarf in mine when I removed it.

Will do. Got it working now. Power fine feed in action.

 

[eLuSiVeMiTe]

Brilliant.
Glad it works mate.
You gonna get the cross slide gear made?

Edit. Do you know what dp your gears in the apron are. Have some small gears kicking around that came with both my Lathes but weren't part of.

Should be able to work out the diameter easily enough too.

 

[God mode restorations]

Brilliant.
Glad it works mate.
You gonna get the cross slide gear made?

Edit. Do you know what dp your gears in the apron are. Have some small gears kicking around that came with both my Lathes but weren't part of.

Should be able to work out the diameter easily enough too.

16 dp. But the teeth are cut at a very slight angle. I need to work out the diamiter of the missing gear.

 

[eLuSiVeMiTe]

Ah yes. Remember seeing that before.
Assuming was to help the engagement

16 dp. But the teeth are cut at a very slight angle. I need to work out the diamiter of the missing gear.View attachment 136909 View attachment 136910

with the worm.

 

[God mode restorations]

Back in the old days when you was just an amerous thought by your father, people only had tool steel and managed high quality finished. You can get an awful finish with carbide to, if its not right speed, feed, etc

Yes. A thought I was. But am making head way now.