Chris's Build of a Stanley 735 Engine

[Ye-Ole Steam Dude]

Hello Chris,

Still following along on this build, boy that is a complicated design. 

If you build the Dump Truck, then you will also have to build that little Marion Dragline......

Have a great day,
Thomas

[crueby]

Hello Chris,

Still following along on this build, boy that is a complicated design. 

If you build the Dump Truck, then you will also have to build that little Marion Dragline......

Have a great day,
Thomas

And the rock crusher, and the conveyor, ....  Gonna need more shelves!

[Ye-Ole Steam Dude]

Hello Chris,

Still following along on this build, boy that is a complicated design. 

If you build the Dump Truck, then you will also have to build that little Marion Dragline......

Have a great day,
Thomas

And the rock crusher, and the conveyor, ....  Gonna need more shelves!

Hello again Chris,

OK not a problem, just send me all those items that are in your way and I will be most happy to store them for you 

Have a great day,
Thomas

[crueby]

Hello Chris,

Still following along on this build, boy that is a complicated design. 

If you build the Dump Truck, then you will also have to build that little Marion Dragline......

Have a great day,
Thomas

And the rock crusher, and the conveyor, ....  Gonna need more shelves!

Hello again Chris,

OK not a problem, just send me all those items that are in your way and I will be most happy to store them for you 

Have a great day,
Thomas

I walked into that one!   

[gbritnell]

Hi Chris,
I follow all your work and have commented on the quality of the work that you do with the machines you have so here's some questions for you.
I know you like working with 303 stainless steel, that's my preferred metal also when working with stainless. What is the largest end mill that you use when cutting it and how deep of a cut can you make?
Do you find the Sherline tools rigid enough for making smooth cuts or do you have to baby them to get what you want?
Do you do most of your cutting conventionally or can you make climb cuts acceptably?
Once again, really impressed with the uniqueness and quality of your work.
gbritnell

[crueby]

Hi George,
I use the 3/8" end mill holders from Sherline, so that is the largest diameter that I normally use - though I do have one holder set up for 1/2" to take larger shank corner rounding bits. I have a range of mills, from 1/8" to 3/8" diameter, use all of them on the 303 stainless.

The depth of cut depends - not sure the proper terms, so I'll call the vertical component deep/shallow, and the horizontal component width. It can take a full width cut as long as it is shallow, and a full depth cut as long as it is not too wide, in the .050 or .100 range at most. More than that and it will chatter. It will do narrow climb cuts fine, and I normally finish off with a climb pass back at same settings as the last normal cut to smooth the finish. When going to a critical dimension, that gets important since repeating the cut at same setting will take off that last thou or two while leaving a nice smooth finish. If I need to do a wider climb cut, I do need to tighten down the gibs and locks to control the backlash on the mill table. I've modified the long axis handwheel to get the backlash on it down to a thou from the normal 5 or so to help with that. The Sherline CAN do big stock, but it doesn't like to do it in one big bite, especially with the taller column and the headstock spacer in since it is not as rigid as a big machine.
Hope thats not too many qualifications and non-specifics, a lot I do by sound and watching the cut to adjust speeds and feed rates on the fly.

[Flyboy Jim]

Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim

[crueby]

Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim

The tailstock on the mill is Sherline's mill tailstock.      How's that for circular logic?
The part is here on their website:
https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/
It is set up for matching the rotab when its on the vertical adapter, handy to keep long parts supported.

[Flyboy Jim]

Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim

The tailstock on the mill is Sherline's mill tailstock.      How's that for circular logic?
The part is here on their website:
https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/
It is set up for matching the rotab when its on the vertical adapter, handy to keep long parts supported.

Yes, I've got that tailstock for my mill as well. In fact, I'm going to be using it in my setup for doing some milling on the Frame for my PMR #5 build. What I was curious about is the chuck you have IN the tail stock................looks interesting and I don't want to miss out on some neat new tool! 

Jim

[crueby]

Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim

The tailstock on the mill is Sherline's mill tailstock.      How's that for circular logic?
The part is here on their website:
https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/
It is set up for matching the rotab when its on the vertical adapter, handy to keep long parts supported.

Yes, I've got that tailstock for my mill as well. In fact, I'm going to be using it in my setup for doing some milling on the Frame for my PMR #5 build. What I was curious about is the chuck you have IN the tail stock................looks interesting and I don't want to miss out on some neat new tool! 

Jim

Oh! Sorry, that is a live center that I picked up a while back. It has a larger spinning cone than the normal one, so it will fit in a larger hole, and the body is a bit heavier duty too. I don't recall where I got it, someplace online. LMS has one like it, but not in the 0MT taper.

[ddmckee54]

Hello Chris,

Still following along on this build, boy that is a complicated design. 

If you build the Dump Truck, then you will also have to build that little Marion Dragline......

Have a great day,
Thomas

And the rock crusher, and the conveyor, ....  Gonna need more shelves!

  Forget about the shelves, you are gonna need more elves, not only that but you'll need to find room for another fridge for their booze.

[crueby]

Hello Chris,

Still following along on this build, boy that is a complicated design. 

If you build the Dump Truck, then you will also have to build that little Marion Dragline......

Have a great day,
Thomas

And the rock crusher, and the conveyor, ....  Gonna need more shelves!

  Forget about the shelves, you are gonna need more elves, not only that but you'll need to find room for another fridge for their booze.

Sigh, expanding a business is such a pain in the swarf!   

[crueby]

More work on the crosshead guide rails today - continued milling in the sides of the blank to form the left/right sides. As it broke through into the core passage, I left metal at the right end to avoid hitting the tailstock support and also to keep the tailstock from pushing the ends apart.

Then took off the tailstock, and used a smaller mill to trim off the outer ends

Here are the parts sawn off the bar, ready for trimming to length and profiling in the sides.

Here is one held up to the engine to show where they will be going...

[cnr6400]

 

[crueby]

Thanks CNR!
Got the shop elves pet goat to nibble away on the crosshead guide rails, taking the sides down to profile a pass at a time, starting too get the right shape. Still need to drill/tap the mounting holes for the bolts from the crossmembers.