Member postings for Martin Newbold

ML10 conversion

Nice work Nobby, have one spare too I had to take it of to fit the tumbler I have.

Fixed my ML10 mount onto the bottom Drummond saddle not very elegant yet but suffices to take up the distance giving me a new amount .

Now have a smaller amount to remove

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

Maybe holding a car brake disk?

Thanks Muzzer as above the actual centre is unknown

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

Have been working on a conversion for a ML10 tail-stock providing an MT2 dead centre
http://www.model-engineer.co.uk/forums/postings.asp?th=119865

Edited By Martin Newbold on 18/10/2016 15:03:18

Here is a ruler behind them in focus on the ruler then on tips

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

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

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

First try still needs adjustment

Here is first try much more to cut down

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.

Colin what parts do you have and were from. I had a similar problem with my tec motor and drive from a supermarket firm this did something very similar and had to go back to single phase. Are you sure you are not over cooking bearings . Are the earths good . Check for anything live or arcing.

I would go much more than the HP you are trying to use . Just my experiance of getting one of these delightful machines going my problems were on a Drummond .

M

Edited By Martin Newbold on 09/10/2016 18:21:28

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?

The tumbler is working brilliantly am really pleased with it. I am still running low speed at present and have not had time to remount gears

lol this is so funny we did this in primary school many years ago, so funny to see so many answers lol

The water is about 15,000 times less compressible than air so is inherently more uncompressible.

The water does shoot out, but not explosively as a gas would.

The pressure is almost instantaneously reduced to atmospheric. The air therefor just expells under pressure

This said Water is less compressible as so it can't store energy the way air does. The water is heavier than the air so sinks to the bottom of the vessel it is dense and is ejected by the air pressure under force. Newtons laws come in: To every action there is a reaction, up the bottle goes.

Edited By Martin Newbold on 08/10/2016 19:26:14

Still working on it

Edited By Martin Newbold on 08/10/2016 19:08:42