Myford DRO and Taper Turning attachment

[Matt HarringtonParticipant @mattharrington87221]

[Matt HarringtonParticipant @mattharrington87221]

Can anyone point me in the right direction to achieve a suitable scale for the rear of the S7 that has the taper turning attachment fitted?

Anyone acheived it?

Thanks, Matt

[Brian WoodParticipant @brianwood45127]

Hello Matt

You might be able to find what you are looking for from Newall. They supply a whole bag of fittings to mount their scales which are very versatile.

My own ML7R has their DRO which I have shoe-horned in with my own home built full bed length taper turning attachment, which is in turn built off a section of 50mm side angle iron, bolted back to all the facings provided for the pukka taper attachment. Try talking to them

Regards

Brian

[KWILParticipant @kwil]

I agree with Brian (above) I have a Newall microsyn (6mm diameter tube) installed along with a taper attachment (also homemade)..

DRO sits neatly under the rear shear of my S7 .Message me with your email and I will send photo.

[Matt HarringtonParticipant @mattharrington87221]

Thanks Brian. I'll give Newall a buzz tomorrow.

Kwil, I have just looked at the Micosyn product and it looks very neat! Will send you a PM

Rgds, Matt

[JAParticipant @ja]

Brian and KWIL

Do you have any pictures of your arrangements, please? I have had a quick look at your photo albums and found nothing.

Thanks

JA

[Brian WoodParticipant @brianwood45127]

Hello JA,

I checked my album today, there are 5 photos I posted in 2012 showing my taper turning attachment, one of which clearly identifies the Newall Microsyn reader for the Z axis down the lathe bed.

I would upload them but some recent problem means I can no longer see the upload button , even replying to messages here has a strange fault in that the cursor insists on returning to the start of the message every time I start a new paragraph.

So, take another look, but this time on page 2

Regards Brian

[egaParticipant @ega]

Brian Wood:

Can you confirm which album, please?

Also, do you elaborate somewhere on the correctly set S7 clutch?

My sympathy for your problems with the editor – not Neil Wyatt but the posting software!

Edit: I do like the ability to edit after posting, though.

Edited By ega on 21/01/2016 09:08:15

[Nick HughesParticipant @nickhughes97026]

Beware, the X axis (cross slide) scale that Newall supply in their Myford Kit, is too short for the travel available with the long Cross slide on a S7. Clearance can be an issue at the back of the machine with the longer scale needed, so make sure your'e not too close to a wall.

If you need photos and/or measurements regarding the above, let me know and I'll sort some out.

Nick.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by ega on 21/01/2016 09:07:15:

Brian Wood:

Can you confirm which album, please?

.

Apologies for butting-in …

I presume it to be this one

MichaelG.

[JAParticipant @ja]

Brian

Found them, thank you for the directions. I like the use of a circular bar.

Nick

Yes please. The more information the better!

At present my lathe is a late Myford model fitted with a Newell DRO. I also have a Myford taper turning attachment from a previous lathe that had been very useful. Fortunately I have not needed to use it yet on the present lathe.

I have a feeling there has been a thread about Newell DROs and taper turning attachments on Myford lathes in the last few years. After posting this I shall search for any such thread.

JA

[JAParticipant @ja]

I have made a search and this appears to be the only thread on the subject.

JA

[Nick HughesParticipant @nickhughes97026]

Hi JA,

search for "Newall DRO" and some more info comes up or try this link:-

http://www.model-engineer.co.uk/forums/postings.asp?th=53720

Didn't realise you had a readout already fitted, in which case my setup will probably be of little use to you, as I don't have a Taper Turning Attachment.

Nick.

 

Edited By Nick Hughes on 21/01/2016 11:11:03

[KWILParticipant @kwil]

Hello JA,

Photo 7 in my album is the rear view you need to see, Do not know how you missed it.

K

[Brian WoodParticipant @brianwood45127]

Hello JA and others,

Michael G Thank you for doing something I currently seem unable to do, those pictures are indeed the ones I referred to

Nick Hughes. My Newall installation is on a long X slide, there is no problem with that other than fabricating a support for the scale at the rear end of the slide to allow full travel. Newall supplied a suitable scale to suit and it has performed as expected ever since

The circular bar is in fact an 18 inch length of 18 mm diameter hydraulic ram—wonderful stuff which is straight as a die, heavily chrome plated to just shrug off any risk of corrosion and resistant to bending. The 'glider' was made from aluminium with simple wiper felts at each end to prevent swarf being carried into the close fitting bore. That too works as expected

And perhaps finally, the tailstock end has micro adjustment available, but both ends of the guide can be moved in one inch bites to realign the whole thing as required for tapers expanding rather than closing. Set up is done purely by reference to the DRO scales and it can be very precise. The only thing I have to remember is that the X slide readout is set for diameter, not radius. It makes a profound difference to any taper cut generated!

Regards Brian

[JAParticipant @ja]

KWIL

Thanks, I have had a look at the picture.

As mentioned above at present I do not have to use a taper turning attachment and at the best only idly thinking about. I did take some photos of the back of the lathe bed a couple of years ago as reference in case I had to do something. Below is one of these.

JA

[KWILParticipant @kwil]

JA,

I took my design basis from CABENG in the past, however the read head is 90 degrees from yours in orientation and I use my own miniature scale mounts, which means the overall scale is higher. That way I still have access to the drillings on the lathe bed back face, which I can see through the aluminium angle on yours.

I like Brian Wood's design which differs from the one I use, if I ever have to consider more than the odd taper, I will probably follow his approach for a new Taper Turning device.

[egaParticipant @ega]

Michael Gilligan and Brian Wood:

Thanks to both. The DRO and taper turning attachment are a marriage made in heaven!

[Brian WoodParticipant @brianwood45127]

I might just add that if I was making another of these, I would use a length of 25 mm diameter hydraulic ram instead of 18 mm, the stiffness would improve a lot as a result. It is good now, but that would be better still

Brian

[Nick HughesParticipant @nickhughes97026]

Brian Wood, the 600-82942 Kit that Newall supply to fit a Myford, DID have a scale that is too short for a Long Cross Slide (by 2"/50mm using their brackets), as I personally experienced in 2015.

Nick.

 

 

Edited By Nick Hughes on 23/01/2016 23:30:31

[Matt HarringtonParticipant @mattharrington87221]

Nick, I'm still stuggling in my mind how to overcome / bypass the taper turning attachment fitted to the lathe with the read head. I tried to get hold of Newall on Friday but with no success (to call back!) and they have still to reply to my online enquiry from 8 days ago! Are you able give me a ballpark figure for their inductive type scales / kit price so I can either rule them out or persue them?

My current thought it to have the read head off to the RHS of the carriage and dropping down to the scale by the right of the taper turning attachment. The scale would probably mounted under the tape turning attachmnet, nearer to the mounting feet. This means the scale will probably 'project' past the tailstock…

Any other thoughts?

Matt

[KWILParticipant @kwil]

Nick,

Did you get Newall to swap over to a longer scale? I have always found them very helpful.

[Brian WoodParticipant @brianwood45127]

 

 

Posted by Nick Hughes on 23/01/2016 23:11:50:

Brian Wood, the 600-82942 Kit that Newall supply to fit a Myford, DID have a scale that is too short for a Long Cross Slide (by 2"/50mm using their brackets), as I personally experienced in 2015.

Nick.

 

 

Edited By Nick Hughes on 23/01/2016 23:30:31

Hello Nick,

Clearly something has changed since the time I bought my lathe DRO package in 2002. I took advantage of the joint collaboration Newall then had with Chester UK [as they were then called] and I feel sure mine was one of the early supplies for a Myford ML7 lathe. I was visited by Brian Mosley, who was the regional sales manager for Newall. He took measurements and I was supplied with a Sherosyn scale down the bed having a travel range of 450mm and one to suit my long cross slide with a travel range of 200 mm.

The display unit is a Digipac, heavily based on the phased out Sapphire model that Newall had supplied for many years to industry

I went back to Newall the following year to equip my Dore Westbury mill and again had the pleasure of a visit from Brian Mosley. This time the scales were 300 and 175 mm travel for the two axes. the display is a Topaz two axis unit having the PCD function.

I have been delighted with both systems and was very pleased to meet Brian again on the Chester stand at Harrogate in 2004. He had by then shed a great deal of weight and looked a much fitter man entirely. I think the association between the two companies came to an end that year, Newall didn't feature at all in 2005

I hope the information is of interest to you

Brian

Correction.    All the scales and readers are Microsyn units, my apologies   Brian

Edited By Brian Wood on 25/01/2016 19:20:11

[KWILParticipant @kwil]

My 4 DRO systems are all Newall and they have proved reliable and accurate. Totally cutting oil proof and mechanically strong. Microsyn scales are carbon fibre tube based and the larger Spherosyn are Stainless Steel tubes. Cost is higher than cheap chinese glass scales but they are of course industrial quality. Newall have been most helpful at all times. (Just a satisfied customer.)

[Nick HughesParticipant @nickhughes97026]

Matt, I paid £1,440 inc VAT and carriage for the Myford specific kit (600-82942) in January 2015, but that was with 5 micron scales, rather than the 10 micron scales supplied as standard.

I had thought of mounting the Z scale on the front of the bed, below the leadscrew and saddle, to avoid the issue altogether, but I've not looked too far into this.

Kwil, once I'd proved that a longer scale was needed (I had to email them a few photos), they sent the longer scale out FOC. The original scale would probably be fine on a ML7. I have to agree that they are very helpful.

Brian, thanks for the background information. The system has changed quite a bit over the years, the reading heads are quite a bit smaller and the current DP700 display unit is packed with both Milling and Turning functions.

Nick.

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