Is this the thing you need?

Is this the 12345 dial on the gearbox?

If so I might have a spare

I can't help you with the drawing Les but I can say I was surprised to see that the screws on my TDS were finished with a die. I'd never seen die-cut lathe leadscrews before. How much too long is the plain section on your screw? If it fouls the nut but only by a turn or two then it might be good eno...

I think the braking is being over-thought here. If it's so important why fit a large motor which has more momentum and needs more energy to stop it? I would do what Dazz says and just fit it up and use the VFD's normal braking. Don't kill the power with the e-stop, use it to remove the run command a...

Steve,

I know someone who probably has all the bits you need. I will send you a PM so you can contact them.

Pete.

Thanks for the nose thread data Andy, that's a very handy reference to have.

Stud gears A-G for metric gearbox lathes.

You can use any chuck that will fit a backplate. What you need is a back plate. The nose thread is indeed 1.5" 8TPI BSF, which is a 55 degree thread. You could buy a backplate casting and have someone machine the register and cut a thread in it for you. Once you have the backplate done just buy your...

Hi Drew.
Put up a photo of the gearbox and one of inside the end cover please so we can see exactly what you have got.

Pete.

Today I had to make a custom hand scraper to scrape the cross-slide ways. Came out pretty well and I have the ways nearly done.

That has come out very nice indeed!

Yes please, send me your phone number by PM John and I'll call you about them.

John, of the original gears I have only 16,56 and 60.

This leaves me needing - 18,24,32,36,40,44,46,48,52,54,72 and 80. I do have a 100/127 pair but I've yet to work out what compliments them for metric pitches. I suspect the stock set should be able to cover most of them.

The top of the cross slide was no better. First problem I had was that it was printing outside the area that the compound base sits on and I didn't want to scrape all that down so I set it up in my mill and fly-cut those bits a couple of thou lower. cslide5.jpg cslide6.jpg cslide7.jpg Then the main ...

I'm afraid I don't there's no tag to tell me the age. I could measure it if you like.

Incidentally, if you have redundant change gears from your conversion, I would be interested in those. I am short quite a few.

I'm working my way through this TDS1 and I noticed that the cross-slide seemed to rock a bit so I set it on my surface plate to check it out. Sure enough it's got a 2 thou belly in the underside, and added to that the compound slide rocks on it's base so I guess the thin casting has twisted a bit ov...

I've installed pdfill now so here's a better quality version than the image above, and easier to save and view on different devices.

steamgeek wrote:HPC's quote £108 + VAT + delivery 21 days lead time

Ouch!

Mind you I was expecting more. Try putting a wanted ad on somewhere like Homeworkshop or Madmodder and see if someone can do better.

I'd have a damn good go at making one myself first. Grind a bit from HSS or gauge plate and fly-cut the teeth.

Andy here's the drawing as a PNG, I don't have the driver installed here to print it as a pdf.