Help with parts.

[Ian L2Participant @ianl2]

Does any one have any gears from Atlas/Halifax 10" fwd/rev selector (see bellow) I am on home run now with just feed ass'y rebuild to do and the gears are quite chewed up. I have contacted Mike Kurn but as second avenue I am wondering is anyone has any parts they don't need I have got some parts which I can rework to repair others but not enough to repair all the gears. If any on can help please PM details.

On another train of thought any ideas what I could do to get rid of this unit by replacing with something to do same job or some other easy to get gears made of better (stronger) material.

Thanks

[Ian L2Participant @ianl2]

Parts I’m in need of

[oldveloParticipant @oldvelo]

Hi Ian

Did a quick look at

http://www.lathes.co.uk/atlas/page9.html

I guess that you want to restore to the original specs.

Then ignore my ramblings below

What if the reversing gearbox was replaced with an extension on the lead screw and an extra gear fitted on the gear quadrant when the lead screw was needed in reverse.

Eric

[Ian L2Participant @ianl2]

Posted by oldvelo on 27/01/2015 03:59:09:

Hi Ian

Did a quick look at

http://www.lathes.co.uk/atlas/page9.html

I guess that you want to restore to the original specs.

Then ignore my ramblings below

What if the reversing gearbox was replaced with an extension on the lead screw and an extra gear fitted on the gear quadrant when the lead screw was needed in reverse.

Eric

Hi Eric I'm not to concerned with keeping it original for this feed system as I can see from the state of my parts and prices on eBay that they quite prone to damage. One idea I had but how practical was to purchase some similar gears but made in some decent stuff and mod them to fit also not 100% sure what you mean when it comes to reversing!

[Ian L2Participant @ianl2]

Posted by Bogstandard2 on 27/01/2015 06:05:35:

Ian,

That is the problem with Mazak gears, ok if everything is in line, but take that away and they bind up and break at the slightest opportunity.

When I rebuilt mine from a box of bits, I even had to get a new box made for the reverse gear assembly, luckily I had a mate who worked in a foundry, and he cast me up a new one in bronze.

Mike was very good at supplying me most parts, in fact, I made him a few bits that are not available any more and we came to a good arrangement that benefitted us both. He has a very good second hand American source for some pieces, and compared to other machine bits suppliers, his prices are very reasonable indeed. He got me a complete Timken roller head from the US to replace my plain bearing one, and If I remember rightly, it came to just under £170 all in.

With regards to your replacing the reverse gearbox with something else. If you are going to be doing any metric threading at all, the one you have at the moment just can't be beaten, in fact, and I know it shouldn't be done, I always switched into reverse while still powered up and running, and no harm came to any of the gears, but I did do the mod to support the gear/bearing at the saddle end of the box, which cures all the misalignment problems when changing gear.

John

Hi John

Did notice your reversing box was nice and shiny. I'm considering following your mods to this feed if I can get enough bits to repair the damaged gears also pondering if there is any way fitting some form of clutch to further protect this set of gears. I have also seen some info on someone driving the feed screw using a stepper motor but the cost could and (most likely will) be more expensive than the parts to make the original work but might be nice. Just don't want to invest loads cash on feed gear then wish I had done something different.

[Ian L2Participant @ianl2]

I have a new ordered a new 9-47 but made from Aluminium bar and the same 9-47 bevel but made from Zamak, Which would be the strongest? Also one of them I am considering modifying so with that in mind which would machine safest without suffering damage?.

It will be mating with Zamak gears?

Edited By Ian L2 on 29/01/2015 22:25:24

[“Bill Hancox”Participant @billhancox]

Ian

I have a Myford Speed 10 and a sweet little Atlas 618. The gear train on the 618 is a little noisy, but when the gears are disengaged, the lathe makes less noise than a sewing machine.

Information from page 26 of "The Atlas Lathe Manual" for your consideration. This should answer your question.

"Zamak Parts: Zamak is an alloy composed of aluminum, magnesium, copper and zinc. It has a tensile strength of 47,300 pounds per square inch, which is over three times that of cast iron. Its impact strength is nearly six times that of cast iron. Exhaustive laboratory research and the practical experience of Atlas Lathe owners have proved the superior wearing qualities of Zamak."

In case you don't already have one, the manual is available from this US EBay seller. **LINK**

Cheers

Bill

[“Bill Hancox”Participant @billhancox]

Ian

I should have checked the "Link" before posting my last. It appears the website above is now dead in the water.

Bill

[Michael GilliganParticipant @michaelgilligan61133]

Posted by "Bill Hancox" on 30/01/2015 05:09:33:

I should have checked the "Link" before posting my last.

.

Bill,

Is this the same manual ?

MichaelG.

[“Bill Hancox”Participant @billhancox]

Posted by Michael Gilligan on 30/01/2015 07:57:11:

Posted by "Bill Hancox" on 30/01/2015 05:09:33:

I should have checked the "Link" before posting my last.

.

Bill,

Is this the same manual ?

MichaelG.

Michael

No 'tis not. I have that one also; only a few pages and a parts list. The one I referred to above is 234 pages; printed in 1937. The original cover page is below. The entity that republished it used a different cover.

Cheers

Bill

[“Bill Hancox”Participant @billhancox]

Michael and Ian

I have located the manual here: **LINK**

Cheers

Bill

[Ian L2Participant @ianl2]

Posted by "Bill Hancox" on 31/01/2015 01:10:17:

Michael and Ian

I have located the manual here: **LINK**

Cheers

Bill

Thanks Bill

Your efforts appreciated.

Michael the link you found is usefull as there is things mentioned in it that arn't mentioned in the large one that bill found.

Edited By Ian L2 on 31/01/2015 09:13:01

[“Bill Hancox”Participant @billhancox]

Posted by Ian L2 on 31/01/2015 08:58:30:

Posted by "Bill Hancox" on 31/01/2015 01:10:17:

Michael and Ian

I have located the manual here: **LINK**

Cheers

Bill

Thanks Bill

Your efforts appreciated.

Michael the link you found is usefull as there is things mentioned in it that arn't mentioned in the large one that bill found.

Edited By Ian L2 on 31/01/2015 09:13:01

Ian

The link posted by Michael is to the owner's manual and parts list for the Atlas 618. I have this and found it extremely helpful when I first acquired my 618 and set out to completely refurbish it. Very often one will find that a piece of used machinery has bits and fasteners that are of a make-do variety. Many members would agree that it is very rewarding to take a manual and restore a machine to its original configuration. Whenever I purchase any used machinery or tools, I always do my best to locate a copy of the owner's manual. I have a file that contains the manuals for every piece of kit that I have bought during my life. Although very much of the Atlas info is generic to several of their lathes, one should attempt to acquire the proper one.

Here is a link to an excellent site that contains hundreds of free manuals listed by manufacturer. You will probably find the exact publication that you are looking for. **LINK**

Good Luck with your project

Bill

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