Lathe problem

[Bodrighy]

The tightening bolts on my tool rest (not the banjos) keep burring so that they won't tighten. It's the handles that seem to be too soft. Axminster replaced them FOC for me but they have only lasted a week. Has anyone got any ideas. At present I am using a pair of pliers to tighten the tool rest up each time I move it.

Pete

 

[DaveL]

Pete,

Any chance of a picture or two of the problem? I am having trouble working out whats happening. :-k

 

[PowerTool]

Are they the ones with spring-loaded plastic handles ? Take it you mean the handles,rather than the thread.
Mine have been okay and work fine,but have all needed the screw tightening up in the centre of the handle.
Guess that doesn't help much,does it :?

Andrew

 

[Paul.J]

Pete.Not sure what you mean,but as Andrew says there is a small screw that can be tightened on the side of the handle itself to take the play up.
As Dave says a piccy would be good to see.
Paul.J.

 

[Bodrighy]

The screw keeps working loose and I have to tighten it and I am sure that this is part of the problrm. I'll try and get some pics up in a bit.

Pete

 

[Mark Hancock]

Pete

Do you mean the screw in the kip/bristol locking handle or the threaded part that is in contact with the tool rest stem

 

[Bodrighy]

The sprung screw seems to keep working loose everytime I use the handle. Result is that the contact between the handle and the main screw is loose and burrs. It happens on both the handles on the tool rest which are in use a lot.

 

[sooty]

The sprung screw seems to keep working loose everytime I use the handle. Result is that the contact between the handle and the main screw is loose and burrs. It happens on both the handles on the tool rest which are in use a lot.

I have exactly the same problem, dont know what to do about it other than keep buying new handles.
I am on my third set since last August!

Phil

 

[Paul.J]

Pete.
I think i see now what you mean.
The plastic square part inside the handle is wearing away.
This must be because the handle isn't going back over the square part of the bolt properly.So probably need new ones.
I think you can buy better quality ones to suit.
Not been funny here Pete,but you do pull the handle out so you can change the position of it to suit your tightening requirements,and make sure that it as sprung back over the square part of the bolt,as this is the idea of the spring.
You should be able to pull the handle out to readjust the position of the handle for tightening and then it should spring back onto the square part of the bolt.
You have to adjust the spring bolt so you can turn the handle.
Either that or the handle is a poor fit to start with.
As you know Pete i have the Perform lathe and my handles do seem a little loose so i just make sure that it is fitted correctly when in use.
Same problem is with the big nut underneath the banjo,it does work loose so i just check it when i use it.
Hope this is clear :shock:
Paul.J.

 

[Bodrighy]

I am now on my second set of handles. Axminster replaced them once without question so I suspect that this has happened with others.
I do pull them out on the spring to adjust and try to make sure that they are back on the head of the nut prior to tightening. but I suspect that the material the handle is made of is too soft. If I am the only one that is having this problem then I guess it must be something that I am doing wrong.
The banjo nut was a bit of a problem but Chas came up with a solution to that one....maybe this is something he will know about as well with his engineering background.

Thanks for the advice. Maybe I'll give Axminster a ring and find out if it's generic or me.

Pete

 

[Paul.J]

Hello Pete.
Just found this

Hope it helps.
Paul.J.

 

[ctb]

Pete

Top Tip

Buy a decent lathe, a nova 3000 dvr doesn't have these problems


Chris

 

[Russell]

You need to get some better quality kip lock handles get metal ones if you have trouble sourcing them I sell industrial quality ones they are about £7.50 each but far better than anything supplied with machinery. If you struggle PM me with the thread size and I will confirm price

 

[Alf]

Arc Euro Trade (under machine spares) have some at very reasonable cost. I must admit when one went on the Perform I didn't even bother troubling Axminster for a replacement - pretty soggy plastic examples imo.

Cheers, Alf

 

[Bodrighy]

Pete

Top Tip

Buy a decent lathe, a nova 3000 dvr doesn't have these problems


Chris

I'd love to Chris, one or two things stop me however.
1 Can't afford it
2 Couldn't get it up into the attic
3 Don't think that SWMBO would go for it just yet

Thanks for the tip tho'

Also thanks Paul, Russell & Alf. I'll dig out the handbook and see what the thread is and hopefully be able to get a decent set of replacements. Only need 2 so shouldn't cost a fortune.

Pete

 

[Bodrighy]

I have checked through the handbook and can see no indication of the thread. Having less engineering background than Mrs Beeton I haven't a clue how to find this out. #-o

Any of you 'experts' who have or have had a Perform CCL help me out here?

Pete

 

[orangetlh]

Hello pete, on the majority of new machines the thread will just be the diameter with an m before it. so a 8mm bolt will be a M8 etc. All you need to find out is the diameter of the bolt and the length.

 

[Alf]

And don't worry about the length - as long as it's longer you can always cut it down.

Cheers, Alf