PMR 7 Twin Cylinder Steam Engine

[Jasonb]

Toolco look to have them in stock, worth a ring or e-mail just to be sure they are the same 52mm bore. You can make the 3 studs to fit your keyhole ring

http://www.toolco.co.uk/products/lathe-backplate-1022-series-lathes-metalworking

[Gas_mantle]

Jason, can you remove your lathe chucks with a piece of work in them and locate them accurately on your rotary table without needing to centre them etc ?

[Jasonb]

No, I have separate chucks and ER Collet chuck for the R/T

[Gas_mantle]

Thanks, I see what I can get at Doncaster, if not I'll speak to Toolco :-)

[Dave Otto]

My lathe has a similar spindle nose, DIN 55022 size 5, on this style the boss on the end has a 7 degree 7 minute 30 second taper. I'm wondering of the lathes that you guys are talking about here also have a taper on the spindle to locate the chuck?

When I purchased my 3 & 6 jaw Bison chucks I made the back plates from blanks because the machined back plates cost more than the chucks at that time. Getting the taper correct was a fun exercise as it needs to lock up at the same time the face of the back plate contacts the flange on the spindle nose.

Anyway I was just curious about the taper?

Dave

[zeeprogrammer]

@Marv - Thanks. That idea went into my 'to-do' list.

@Gas_mantle - I was able to do that when I had my mini-lathe and rotary table. I don't have a large enough rotary table now but the ability to move the chuck from the lathe to the rotary table is something I've been wanting to look at.

@Dave - I don't see any kind of taper on the back plate. I'll take another look when I swap out the 4-jaw.

[zeeprogrammer]

Not a great job on the elbow pipe but for my first one I'm fairly satisfied.

1st pic shows one end being faced. Forgot to take a picture when I drilled/tapped it. You'll see why in a moment.
2nd pic took a page from Dean's website. I threaded a rod and used it to square the pipe for the 2nd end. That end is just drilled.
3rd pic shows the elbow with pipe nipple and tube. Also the T pipe I've yet to do.

And...the 3rd pic shows the bit that broke when I was drilling the 1st end. That put me off my game and I didn't think about a pic. 

[EDIT] When trying to set up the 1st end, I used a dead center to eyeball the center of the end. Worked okay. Main problem was the pipe was slightly crooked so the facing doesn't look very good.

[Gas_mantle]

Dave, the spindle on my machine is parallel, from what I can see your equipment looks to be more expensive so I'd guess yours is probably better engineered 

Carl, at the moment I don't have a rotary table chuck so it would be useful if I could use a lathe chuck easily.

[crueby]

Nice job on the elbow for the pipes. Don't worry about the broken drill, not an uncommon problem - either from moving parts or when they get dull, it happens. I've taken to buying multiple spares of some of the most used sizes, places like Victor Machinery sell good cobalt steel ones at a good price.

 

[zeeprogrammer]

Don't worry about the broken drill, not an uncommon problem - either from moving parts or when they get dull, it happens. I've taken to buying multiple spares of some of the most used sizes

I've taken to doing the same whenever I have one to replace...I buy a few more.
I'll be keeping the drill bit. It can be ground down and used like a D bit if ever needed.

Finished the T-elbow. This went far better.

Pretty much down to the eccentric hubs and eccentrics. Plus a few holes yet to drill and some finishing.

[b.lindsey]

At this rate Zee, your best be thinking about getting materials on order for the Stanley Steamer 

Bill

[crueby]

At this rate Zee, your best be thinking about getting materials on order for the Stanley Steamer 

Bill

Ooh, yeah, we'd love to see that!   

[zeeprogrammer]

At this rate Zee, your best be thinking about getting materials on order for the Stanley Steamer 

Yous can call be Zeep, yous can call be Carl, but you DON'T calls be Chris.

The Stanley is Chris' job. Go give him a poke.
And keep doing it.

 

[crueby]

At this rate Zee, your best be thinking about getting materials on order for the Stanley Steamer 

Yous can call be Zeep, yous can call be Carl, but you DON'T calls be Chris.

The Stanley is Chris' job. Go give him a poke.
And keep doing it.

 

Yeah, yeah, its on my list next!!

[Tennessee Whiskey]

Nice work Zee. Hey, at least you were able to retrieve the broken bit. I think a Stanley Zeeamer would be a great project for a new retiree with all that time on his hands 

Cletus