Member postings for Michael Horner

This could be a Monty Python Sketch along the lines of the three Yorkshire men.

I lad you used a file to make it fit, I used me teeth. Your not a proper Engineer.

Cheers Michael.

Nice work Vic.

I don't have that kind of artisic talent

My version is a Mike Cox variant. For the clamp I have counter bored a hole similar to what you have done but pull a tapered wedge into the hole, a bit like a cotter pin on a push bike crank. I have only just made it so I don't if it clamps better than a traditional clamp, only time wll tell.

Cheers Michael.

Thanks Jason you were spot on.

Compatability view was ticked. I think it's for my CAD package.

Cheers Michael.

Hi Ady

The picture is what I get when I press the camera icon! I am sure it used to work.

Bikini. What bikini?

Cheers Michael.

Hi

When trying to use a picture from my album to insert into thread it doesn't work. Used to.

Anybody any suggestions?

Cheers Michael

Didn't make the actual rear tool post just the sub table and riser block got the inspiration from here **LINK**

It is certainly a lot more ridgid

Cheers Michael

I have a Denford ORAC lathe which as far as I am aware has the original motor and VFD. When running it at 300 RPM for a while the motor got hot enough so that I couldn't hold my hand on it. I don't recall there being a smell of burning, I was concerned enough to put a fan to blow air over the casing.

Cheers Michael.

Worked for me. Took a while to load on my snailband.

Cheers Michael.

Hi JC

Have a look at the ads to the right of your post, up about 2.5 at the moment for Excentric Engineering .

Cheers Michael

John

What are those dotted lines at the bottom of the mag outline?

Hi Brian

!. The drawbar is typically for milling machines because the vibration of milling can unlock the taper. It just a big bolt that pulls the tapers together.

2. If you wind the tailstock back to its retracted position when you get to 0 the internal threaded bar SHOULD release the taper. there are different lengths of taper so can happen before 0, if a short taper it wont release.

3. Yes.

HTH

Cheers Michael.

Hi Ian

Is this something to do with the technology of the time. I.e. the side we are calling flat, wasn't. The side that was chamfered has been machined and so that was the side to use.

All modern referance to square nuts I found shows the chamfer to the top.

Cheers Michael.

Piqued my interest this one, so did some googling and found this link.

**LINK**

It's JasonB and Bogstandard giving their input to making a steam model with square nuts!

Another site I visited suggested that if the nut was going into wood the chamfer would be on the wood side.

All modern stuff says chamfer to the outside H&S!

To my mind a bolt would give the diffinative answer because it can only go one way round.

One web site said in the days before my father was a twinkle in his fathers eye a black smith would make a square nut from bar stock by heating it to red heat and punching the middle out, didn't say how they got the threadding done but the dished side would be the clamping side and this would cause the square to bind stopping it comming loose.

Ah armchair engineering at its best. I can go to bed happy now.

Cheers Michael

Hi Paul

My wife bought me one for my birthday many moons ago. For the money I don't think the quality is bad. I notice on mine that it has six shiney grub screws to hold the tools in position. So looks like I have replaced them. They are not expensive. The other tools have ground surfaces and all fit together well. It comes in useful for drilling and tapping on the same part.

HTH

Cheers Michael.

Hi Richard

Found this link on the Mach 3 website **LINK**

Someone wanting to do the same. Not much to go on though.

Les Jones may have a better idea he has done a lot of work on DRO's. He's on holiday till the 10/6.

You may have to build and interface to match the output voltages and the encoding if any.

There is a YADRO which does want you want but doesn't use Mach 3.

HTH

Cheers Michael

Hi David

Your tap question has been answered..

To get the near interferance fit can you use a dowel?

That is what I have seen in the car world to align housings.

I have seen dowels with a hole in the centre for the bolt to pass through.

HTH

Cheers Michael.

Hi Ian

I can't help with the mag search but you also were looking for ideas, have you seen the article by Andy Ross on making Stirling engines?

**LINK**

Cheers Michael

Sorry about the misdirection Graeme. I remember reading what you wrote but could I find it afterwards!

Cheers Michael.

Hi Roy

I think that it goes through the counterbores so the screws will be infront of it.

I am making the same for my minilathe. I am going to try the Bogstandard2 method which is to screw into the key.

Cheers Michael

Hi Rik

Harold Hall wrote some words on using these jigs on his website. From what I can remember he thought they were ok but there were some key points to take note of.

**LINK**

Cheers Michael.