what width bed is an ml10 please

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what width bed is an ml10 please

This topic has 24 replies, 7 voices, and was last updated 19 October 2016 at 20:45 by Martin Newbold.

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17 August 2016 at 21:35 #251199
Martin Newbold
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@martinnewbold
can someone tell me the answer to this please the widle of a ML10 bed

Cheers

martin
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17 August 2016 at 21:35 #8253
Martin Newbold
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@martinnewbold
17 August 2016 at 21:57 #251205
John Stevenson 1
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@johnstevenson1
**LINK**
4 September 2016 at 13:18 #254056
DAVID POWELL 4
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@davidpowell4
Mine's 3 inches
4 September 2016 at 13:29 #254058
Michael Gilligan
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@michaelgilligan61133
Posted by DAVID POWELL 4 on 04/09/2016 13:18:24:

Mine's 3 inches

.

That's bigger than John's

Edited By Michael Gilligan on 04/09/2016 13:33:40
8 October 2016 at 18:45 #260015
Martin Newbold
Participant
@martinnewbold
Thanks a bit late am working on a new project to convert ML10 tail stock to Drummond 3.5" bed. This is the first idea i come up with to cut down the ML10 saddle to bolt onto the Dummond Saddle kike the old one did making a mating surface for the new MT2 tailstock.

Here i s what i started with

Here is the bottom part

Here is it cut down on image software

Cheers

MN

Edited By Martin Newbold on 08/10/2016 18:48:36

Edited By Martin Newbold on 08/10/2016 19:07:51
8 October 2016 at 18:58 #260016
Martin Newbold
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@martinnewbold
Here is what its going onto
8 October 2016 at 18:59 #260017
Martin Newbold
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@martinnewbold
I am hoping at least one of the screw holes will line up.
8 October 2016 at 19:07 #260019
Martin Newbold
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@martinnewbold
Still working on it

Edited By Martin Newbold on 08/10/2016 19:08:42
9 October 2016 at 16:42 #260173
Martin Newbold
Participant
@martinnewbold
Difference from Drummond tailstock saddle to center calculation

Chuck Jaw height: 0.5845”

Tail Centre Dia: 0.1135”

Chuck Hole ½ Dia: .039/2”

Total .7175"

First cut will be .08” leaving difference from block to correct height .0825" to remove if all goes well. Does this seem right?
10 October 2016 at 20:10 #260331
Martin Newbold
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@martinnewbold
Some cutting down today much more to cut around 5mm to get centres same as mt1 tailpiece. Intend to take some from top and some from bottom.
10 October 2016 at 20:11 #260332
Martin Newbold
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@martinnewbold
Here is first try much more to cut down
17 October 2016 at 16:08 #261543
Martin Newbold
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@martinnewbold
First try still needs adjustment
17 October 2016 at 16:56 #261549
Martin Newbold
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@martinnewbold
18 October 2016 at 13:25 #261695
Martin Newbold
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@martinnewbold
Did a bit more to this got horizontal in the ball park and just vertical is out now . Will remove 1mm and see again

MN
18 October 2016 at 13:35 #261699
Steven Greenhough
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@stevengreenhough56335
A bit late to the party but…

It might be worth using a center in the spindle nose rather than a chuck? Might be that bit more accurate?
18 October 2016 at 13:50 #261704
Martin Newbold
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@martinnewbold
Here is the reverse showing the ML10 interface with the old Drummond saddle which was under existing tail piece.Provision has been made to retrofit the MT1 tail piece should it ever need to be. Stil have approx 2mm to remove from top was able to remove approx 3mm from bottom. Am going to take it slow here so i can get it as tight as possible 1mm at a time.

Regards

MN
18 October 2016 at 13:54 #261705
Martin Newbold
Participant
@martinnewbold
Posted by Steven Greenhough on 18/10/2016 13:35:46:
A bit late to the party but…

It might be worth using a center in the spindle nose rather than a chuck? Might be that bit more accurate?

Yep Steven , thanks for the tip . I am still considering how to get it dead accurate . I need a 5/8 16 MT2 for my chuck to get the big chuck on it to hold something other than what I have . I have about 2 mm to remove approx so am going to take another 1 mm before I get into working out how to get it exact any ideas would be really helpful. Wont do this until next week.

MN
18 October 2016 at 14:10 #261707
Martin Newbold
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@martinnewbold
Here is a ruler behind them in focus on the ruler then on tips
18 October 2016 at 14:22 #261709
MadMike
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@madmike
All very interesting, but are we not missing the obvious here. The centre height of an ML10 is a known dimension. So why are you messing about trying to match a centre to the centre of a set of chuck jaws, or to another centre mounted in the headstock or a chuck?

Why do you not simply assemble your tailstock, then measure the position of the centre and simply machine the base, however constructed to match the known ML10 centre height? It seems so straightforward to me, or am I missing something here? It almost feels like you are all trying to re-invent the wheel to me.
18 October 2016 at 14:26 #261710
MadMike
Participant
@madmike
I have just looked at the photos again. Is it me? You don't even have a complete centre in the tailstock, so how do you hope to match up the tips of the 2 centres when of them is not actually available to line up?
18 October 2016 at 14:41 #261716
Muzzer
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@muzzer
Posted by Martin Newbold on 18/10/2016 13:54:37:

I am still considering how to get it dead accurate

If you turn a taper onto a piece of bar stock – or better still, take a skim cut on a dead (ie soft) centre – you will end up with a dead accurate indication of the true centre. Doesn't matter what the spec sheet says or even what you measured – the point you cut will be at the actual centre height. If you remove the bar or centre, you should probably re-skim it each time.
18 October 2016 at 15:11 #261721
Martin Newbold
Participant
@martinnewbold
Posted by MadMike on 18/10/2016 14:26:12:

I have just looked at the photos again. Is it me? You don't even have a complete centre in the tailstock, so how do you hope to match up the tips of the 2 centres when of them is not actually available to line up?

Hi Mike,

It’s going to need the surface milled off to line them up. I have not an MT2 dead centre at present as one is on order but has not arrived.

I might be able to borrow one before i start taking more material away on Monday. The ML10 may be a known dimensions but the Drummond is not known by me. In addition this is made from a construction of the ML10 tail piece to mate onto the existing Drummond 3.5" wide bed slide. Thanks for the criticism I think do i get dinner with that

MN

Edited By Martin Newbold on 18/10/2016 15:14:13
18 October 2016 at 15:17 #261725
Martin Newbold
Participant
@martinnewbold
Posted by Muzzer on 18/10/2016 14:41:05:

Posted by Martin Newbold on 18/10/2016 13:54:37:

I am still considering how to get it dead accurate

If you turn a taper onto a piece of bar stock – or better still, take a skim cut on a dead (ie soft) centre – you will end up with a dead accurate indication of the true centre. Doesn't matter what the spec sheet says or even what you measured – the point you cut will be at the actual centre height. If you remove the bar or centre, you should probably re-skim it each time.

Thanks Muzzer as above the actual centre is unknown
19 October 2016 at 20:45 #261928
Martin Newbold
Participant
@martinnewbold
I put a ruler next to a sharper dead centre and found it was 2.75 lower this gives an eventual height for he conversion of and final height would be 15.75mm.

MN
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