Colchester worn cross slide nut

[fizzy]

The only apparent wear in my Colchester Triumph is the cross slide nut. There isn't much backlash but you can push pull the cross slide and it definitely moves a tad and makes a clonk.

Anyone know where I can buy one?
Or would someone on here be interested in machining one for me?

On the plus side when I removed the nut I can slide the cross slide back and forth and there is no slop of any description - smooth as silk

And another question - quite often now I take piccies with my phone - they look fine - and on my desktop - but when I upload them they get rotated - very annoying!

 

[Shox Dr]

How much? even a new one has some backlash

 

[pressbrake1]

You could split the nut to take out some backlash

 

[mike os]

Like rocking horse poop... only more costly

 

[fizzy]

How much? even a new one has some backlash

When I grab the slide and push or pull it visibly moves and goes clonk. Perhaps 2mm or so.

 

[brightspark]

its no big deal having backlash it wont affect the accuracy of your cuts

 

[Shox Dr]

When I grab the slide and push or pull it visibly moves and goes clink. Perhaps 2mm or so.

Have you checked for play in the hand wheel assembly etc. Doesn’t look to have 2mm of wear in the nut

 

[fizzy]

Have you checked for play in the hand wheel assembly etc. Doesn’t look to have 2mm of wear in the nut

Not yet how do I do that?

 

[fizzy]

There isn't much backlash when you turn the handle so perhaps it is the other end.

 

[pressbrake1]

Thrust bearing assembly could be loose

 

[scottmk1]

There's a guy on ebay that makes new nuts, his ebay name is reltub something or other, I'll send you a link if you want

 

[mike os]

There's a guy on ebay that makes new nuts, his ebay name is reltub something or other, I'll send you a link if you want

Please

Although I think the screw us worn on mine as well

 

[fizzy]

There's a guy on ebay that makes new nuts, his ebay name is reltub something or other, I'll send you a link if you want

I did see that thanks - but he says he won't be doing any for quite a while - will message him anyway but first will try the handle end in case that is the problem.

 

[mike os]

I did see that thanks - but he says he won't be doing any for quite a while - will message him anyway but first will try the handle end in case that is the problem.

Backlash in the handle is an easy fix , just adjust it

 

[scottmk1]

Please

Although I think the screw us worn on mine as well

https://ebay.co.uk/usr/reltub34

There you go

 

[Pete.]

Have you checked for play in the hand wheel assembly etc. Doesn’t look to have 2mm of wear in the nut

Backlash in the handle is an easy fix , just adjust it

Yes this or as Pressbrake said the thrust bearing. Some Colchesters have a telescoping screw to accommodate a taper turning attachment.The handwheel can be nice and snug but the screw moving through the thrust bearing.

 

[minimutly]

I think you're worrying about nothing - backlash in the cross slide doesn't affect anything so long as you know its there.
Mine has around a third of a turn - what's that - 60 thou roughly? Don't fret it as long as everything else is done up.

 

[fizzy]

I think you're worrying about nothing - backlash in the cross slide doesn't affect anything so long as you know its there.
Mine has around a third of a turn - what's that - 60 thou roughly? Don't fret it as long as everything else is done up.

It isnt the backlash in the handle that bothers me - it is the way it rocks back and fore.

 

[fizzy]

I have messaged the bloke on Ebay about the cross nuts. He does have one that will fit my lathe but they are made from brass not bronze. Surely phos bronze would be preferred. Isn't brass more likely to cause wear on the screw?

 

[ronan]

I have messaged the bloke on Ebay about the cross nuts. He does have one that will fit my lathe but they are made from brass not bronze. Surely phos bronze would be preferred. Isn't brass more likely to cause wear on the screw?

If you posted him a bit of Bronze, would he make you one ?