Member postings for John Baron

Hi Guys,

There is a company in Pontefract, West Yorkshire that builds ride on models of them.

Try

http://miniaturesteam.com/

There is a picture on the first page.

Hi Guys,

Whilst modern structural adhesives are very good, you will note that where they are used, that use is built into the design.

I agree with others that say they shouldn't be used for this application. Personally I would simply re-make the part using steel.

Hi Guys,

The Kenwood food mixer motors change the speed by means of a stepped field winding. I don't know if the later ones use the same technique.

As far as reversing a universal motor, I did qualify that by pointing out that you would have to run it on DC ! Or modify the wiring to the brushes if you wanted to use AC.

Hi Eamonn,

Yes you can, but you will have to feed it with DC !

I would look for a more suitable motor, maybe a defunct shower pump motor, though most of these are induction motors and are usually about 1/2 Hp. They also have an electronic soft start in them. Reversing them is simply a matter of moving the mains live wire from one side to the other side of the capacitor.

There are also some universal motor ones kicking about as well, but to reverse those you will have to swap over the brush connections. Or you could feed it with DC, which if you used a variable voltage DC supply would allow you to vary the speed as well as reverse it.

Bandsaw !

Those Metallock stitches are amazing. I've seen them used on cast iron marine engine blocks to close and repair cracks. In the old days they used to be furnace welded !

Hi Joe,

That was what I got for my Dickson and four holders, to suit Myford.

Brake discs are about as flat as you can get ! If you think about it if they weren't the brakes would judder something awful. So no point in rotating it and checking unless its an old one and its warped.

The swinging arm and a dial gauge will tell you all you want to get the head back in tram !

Good for you ! I hoped that you had. Its not an easy skill internal threading, particularly small or deep bores. Although I admit that I could have cheated and used a tap, the amount of effort required to turn a large tap of that size is enormous. I've only ever used that tap once, never again.

Hi Jim, Guys,

Not bad, not bad at all ! I've seen far worse.

I put a collar on mine to stop the winding wheel from fouling the change gear cover. You can't see it in my pictures above. But it was too easy to put the handle in and then find that you couldn't turn the handle because it was pressed up against the cover.

Hi Lee,

A very nice breakdown of the gearbox and components. Thanks for posting !

That duplex gear just behind the spindle that is moved by the selector arm on yours is the one that was plastic on mine, the one that I replace with a steel one.

Thanks Lee.

Hi Lee,

I'll bet you didn't single point that internal thread

Hi Lee,

That's good, I don't like plastic gears in mills or lathes at all.

I didn't see that thread, I'll go and have a look.

Hi Kiwi bloke,

You may be able to make a soldered wire repair, but you will probably find that as soon as the motor spins up the centrifugal force will simply pull your joint apart.

Hi Richard,

It doesn't really matter ! Reversing the motor is simply a matter of moving the wire from one end of the capacitor to the other. In the picture I posted the neutral is assumed to be the middle wire going to the common junction of the windings.

Hi Lee,

Now let me guess, you stripped the plastic gear in the mill gearbox !

You are not alone ! I replaced mine with steel gears. It transformed the behaviour and the abilities of the mill. I also discovered that the plastic gear in mine was machined slightly off centre and produced a slight rhythmic thump when the spindle was in low gear.

Hi Andy,

I got rid of my Dickson QCTP and made my own Norman patent one ! Much better and cheaper than buying a multitude of expensive tool holders.

This is mine, I also made a rear one as well.

I have some drawings for a Myford sized one if you want a copy.

Hi Guys,

That motor has two similar windings, the capacitor goes across the ends the other ends are connected together and are the mains neutral connection. Depending upon which way you want it to turn the mains live is connected to one end or the other of the capacitor. There is no CF switch.

Edited to add picture.

This is the circuit except that where the CF switch is shown the capacitor goes straight to the end of the winding.  There is not a CF switch.

Edited By John Baron on 24/05/2020 22:13:01

Hi Guys,

The museum at Iron Bridge, Telford is the Blists Hill one. They do casting demonstrations as well.