"The Project" Help

2001-07-11 Thread John Kowalchuk

I'm having trouble with my mail so please excuse me if this shows up twice.

I'm in the middle of building the "Project" from the G1MRA book and I'm a
little confused.

I have no background with steam engines but I'm having no trouble with the
machining part of things.  I'm constructing the cylinder, steam chest and
covers at the moment.  The photos sometimes help illustrate things better
but they don't always agree with the drawings.  This leads to some
confusion due to interpretation.

I have succesfully machined the cylinder and all passages as far as I can
discern from the text and diagrams.  I can see how the valve (when built
and installed) will uncover the steam passages and drive the piston to the
far end of the cylinder at which point the valve will uncover the opposite
steam passages and force it back.

Does the exhaust exit the cylinder through the same passage?  Does the
valve move far enough to uncover the exhaust ports or is there something
missing?

John Kowalchuk  maker of mutes/horns/canoes/paddles/bikes/harps
Oshawa, Ontario http://home.istar.ca/~johnk

Canadians don't surf the net, we paddle it. 



Re: "The Project" Help

2001-07-11 Thread trotfox

Yes, steam moves both ways through the two end ports.  It exhausts through
the middle port by way of the 'D' valve.  The valve will move far enough
to cover and uncover the ports for steam direction.  :)

Keep in mind that I'm just talking about general slide-valve mechanics
here, I've not seen the plans for 'The Project'.

Trot, the quickly-responding, fox...

On Wed, 11 Jul 2001, John Kowalchuk wrote:

> I'm in the middle of building the "Project" from the G1MRA book and I'm a
> little confused.
>
> I have no background with steam engines but I'm having no trouble with the
> machining part of things.  I'm constructing the cylinder, steam chest and
> covers at the moment.  The photos sometimes help illustrate things better
> but they don't always agree with the drawings.  This leads to some
> confusion due to interpretation.
>
> I have succesfully machined the cylinder and all passages as far as I can
> discern from the text and diagrams.  I can see how the valve (when built
> and installed) will uncover the steam passages and drive the piston to the
> far end of the cylinder at which point the valve will uncover the opposite
> steam passages and force it back.
>
> Does the exhaust exit the cylinder through the same passage?  Does the
> valve move far enough to uncover the exhaust ports or is there something
> missing?
>
> John Kowalchuk  maker of mutes/horns/canoes/paddles/bikes/harps
> Oshawa, Ontario http://home.istar.ca/~johnk
>
> Canadians don't surf the net, we paddle it.
>



 /\_/\TrotFox\ Always remember,
( o o )  AKA Landon Solomon   \ "There is a
 >\./< [EMAIL PROTECTED] \ third alternative."
 



"The Project" Help

2001-07-11 Thread John Kowalchuk

I'm in the middle of building the "Project" from the G1MRA book and I'm a
little confused.

I have no background with steam engines but I'm having no trouble with the
machining part of things.  I'm constructing the cylinder, steam chest and
covers at the moment.  The photos sometimes help illustrate things better
but they don't always agree with the drawings.  This leads to some
confusion due to interpretation.

I have succesfully machined the cylinder and all passages as far as I can
discern from the text and diagrams.  I can see how the valve (when built
and installed) will uncover the steam passages and drive the piston to the
far end of the cylinder at which point the valve will uncover the opposite
steam passages and force it back.

Does the exhaust exit the cylinder through the same passage?  Does the
valve move far enough to uncover the exhaust ports or is there something
missing?

John Kowalchuk  maker of mutes/horns/canoes/paddles/bikes/harps
Oshawa, Ontario http://home.istar.ca/~johnk

Canadians don't surf the net, we paddle it.