The "Little Pearl" Single Cylinder Marine Engine

[b.lindsey]

I got maybe an hour's work in during lunch today doing some hole drilling in the cylinder casting. Might have gotten more done but had to tram the mill in (these kids do what they please and then walk away so you never know). Anyway in photo 1 there is a hole drilled from both the top and bottom which forms part of the steam admission passage. Then in photo 2 there are five 1/8" holes drilled from the steam chest. The two outer ones port into the piston valve chamber, the middle one intersects with the main steam/air exhaust passage which exits the pump side of the casting. The two intermediate holes go deeper and intersect with the two holed from photo 1. Two more still need to be drilled from the far end of the casting to complete the upper and lower passages for steam/air in or exhaust out but that will wait for another day.  Photo 3 may explain this better than my written description.

Bill

[90LX_Notch]

Looking good Bill.

-Bob

[zeeprogrammer]

I've worn my fingers down drumming. 

[crueby]

I've worn my fingers down drumming. 

Zee, better to build them up by turning cranks on your lathe/mill!!   

Bill, following along as well, very interesting engine.
 

[b.lindsey]

Hmmmmmm.....seems you need something better to occupy your time Zee. Getting closer to a family shot but not there yet....soon though... maybe

Bilk

[zeeprogrammer]

Hmmmmmm.....seems you need something better to occupy your time Zee. Getting closer to a family shot but not there yet....soon though... maybe

Good to know Chris...I mean Zee...I mean Bill. 

[Tennessee Whiskey]

Well, after a weekend of free hockey tickets in a free food and libation luxury suite provided by one of my suppliers (YES  )  I return to find some really nice machine work Professor. The extra details on the straps really make them pop. Bill, if I may: Zee, if’n youins don’t quit picking on the Professor, I’m going to start fabricating things to send to T, and they ain’t gonna be parts hoss . I’ll bet with Crubey’s background, we can fabricate some really juicy pics of you and the female elves ( Hey, a couple of his are baby dolls) : just saying  . Thanks Bill for letting me stop by and admire your work and have a little fun.

God Bless
Cletus

[b.lindsey]

Thanks Cletus, I wondered where you had been   Sounds like a fun weekend too!!  Was it in Nashville?

Bill

[bent]

Looking good Bill.

Am curious about how you mounted the 3-jaw on your rotary table, will need to research that.  Does it mount/dismount easily? 

[crueby]

Looking good Bill.

Am curious about how you mounted the 3-jaw on your rotary table, will need to research that.  Does it mount/dismount easily?

If he is putting on his Sherline rotary table/mill, he is using the adapter screw that threads into the center of the rotab and has the same thread as the headstock of the lathe on the top. It holds the three jaw well, but if milling the outside of a large part I like to use the 4-jaw instead on my Sherline, since that has a groove to take a hold-down on the rim, to keep the mill from unscrewing the chuck. Thats something we need to work up Bill, a little hold-down that works on the rim of the 3-jaw chuck!

[b.lindsey]

Chris answered your question Bent. It's a very handy way to go from lathe to mill without taking the part out of the chuck
unless you want or need to. I do tighten it well for the reason Chris noted, but some additional would be good too.

Bill 

[Tennessee Whiskey]

Yeah, it was in Nashville. Our hockey team made it way into the playoffs last year and all of a sudden Nashville is a major league hockey town. I don’t understand the game quite yet, but, the tickets were free, the beer was cold, and the food was great. Are you reserving any bronze chips for a Clicksring type blueing tray?

Cletus

[b.lindsey]

No but probably should have. Would have had a few pounds by now if not more.

Bill

[bent]

Thanks Chris and Bill.  That sounds like a neat setup.  I've been contemplating ways to make the rotary table here at work easier to set up, and now am thinking about methods for quickly mounting and centering my mini lathe chucks on it.

[b.lindsey]

A lot will depend on the center hole in your RT (i.e. straight, tapered and if so what taper, threaded). I also have a similar adapter which screws into the RT but has 14mm x 1 threads to adapt the Cowell's chucks to the Sherline RT.

Bill