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1/3 Scale Case Boiler


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  #41  
Old 02-25-2014, 06:32:55 PM
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Default Re: 1/3 scale Case boiler

If you aren't firing them hard, you aren't having fun! I would be sure to bead both ends. A scale pulling hard will have the stack glowing red. There just isn't much distance between the firebox and smoke box for the gases to cool down.
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  #42  
Old 02-25-2014, 09:02:16 PM
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Default Re: 1/3 scale Case boiler

This is confusing. I really appreciate the input. Anyone else who has experience with a 1/3 scale case had any experience with this? Do they really get that hot? I guess if I can get access to the tool i'll roll them just to be safe. I did put a copper sleeve in one of the holes in the flue sheet as was suggested to aid in replacing the flues if the need ever comes up ( that will probably be for the grand kids to deal with).
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  #43  
Old 03-10-2014, 10:29:46 AM
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Default Re: 1/3 scale Case boiler

Photo #1 front draft door/ash cleanout. Photo #2 firebox ready to install - mud rings and fuse plug installed, and all holes for the stays are drilled. It took some fitting to get the mud rings to fit fairly tight. Photo # three almost ready to assemble. I will be getting the casting set first as there are a few things I need to do before I get things all welded together. In one piece - the mass and weight will be much harder to handle.
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  #44  
Old 03-10-2014, 12:58:02 PM
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Default Re: 1/3 scale Case boiler

The boiler is looking fantastic.. Awesome job !!!
Larry
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  #45  
Old 03-10-2014, 05:15:40 PM
Ray Wangler Ray Wangler is offline
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Default Re: 1/3 scale Case boiler

BD, they really get that hot! Put that baby on a prony brake and watch her glow. I’d bead the tubes, especially the firebox end. You really also should look at the calculations for your firebox. It will likely stand 200# like nothing. Mine calc’s out at 386 psi and I run at 150. The boiler tube calcs out at something like 1100 psi. Read the ASME section on miniature boilers, I don't think it applys to our stuff (depending, of course on state law). I run the daylights out of my machine with no boiler troubles (seems like I wrecked everything else since it's finished, but no boiler troubles!)

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  #46  
Old 03-10-2014, 05:43:38 PM
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Default Re: 1/3 scale Case boiler

Thanks for the advice. How do you determine what pressure the boiler would be rated for?
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  #47  
Old 03-12-2014, 06:24:59 AM
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Default Re: 1/3 scale Case boiler

Sometime in the not too distant future I am going to need access to a beading tool. Would anyone have one that I could buy/rent/borrow? I thought I might be able to make one but I don't even know what they look like.
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Old 03-14-2014, 08:13:09 AM
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Default Re: 1/3 scale Case boiler

Just FYI here in Michigan, when showing in public you aren't allowed to run above 100# unless you have a inspected stamped code boiler. I used to run 125 up until 4 years ago when i had a boiler inspector start giving me a bible lesson on the code. He stated I couldn't run at all without a code boiler, but after a week of phone tag with the chief boiler inspector we got the matter settled. Yes the engine is exempt from being inspected and doesn't have to be a code boiler, but you cannot run above 100#. Hope this helps a little with your project.
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Old 03-14-2014, 11:14:35 AM
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Default Re: 1/3 scale Case boiler

Thanks. That clears a lot of things up. I was told by the state boiler inspector that they weren't to exceed certain dimensions and 100 psi. I don 't see that as a problem. I have read about the boiler explosion in Madina and fully understand the reasons for the rules governing this hobby. In construction of this boiler my intent is to use the right construction materials and techniques to the best of my abilities. That and the fact that I have never heard of a miniature boiler of this size exploding. The design I am using I am told has a 600 percent safety factor built. I am not a certified welder or boilermaker but from what I have read as much as 90 percent of the models out there aren't code boilers. I intend to follow the rules to the best of my abilities with the safety of the public in mind. The big thing for me is just to build one and see it running. Going to shows is a long way down the road. I may not even get to that point.
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Old 03-14-2014, 11:17:28 AM
SteamLoco726 SteamLoco726 is offline
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Default Re: 1/3 scale Case boiler

If it is exempt from inspections how can they cap your pressure at 100psi?
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  #51  
Old 03-14-2014, 04:32:14 PM
Langes Machine Shop Langes Machine Shop is offline
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Default Re: 1/3 scale Case boiler

My tubes are welded in the fire side and beaded in the front.
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Old 03-14-2014, 04:50:54 PM
Jeff Smith Jeff Smith is offline
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Default Re: 1/3 scale Case boiler

Quote:
Originally Posted by SteamLoco726 View Post
If it is exempt from inspections how can they cap your pressure at 100psi?

If their code is like other state codes I have read, under the exemption category, it would also list the max psi that exempted boilers could operate.
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  #53  
Old 03-14-2014, 05:39:06 PM
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Default Re: 1/3 scale Case boiler

As heavy as he's building it though, it should still be good for that 100psi 100 years from now.

I lost track of this thread for a while, but I'm glad I found it again.

That's some pretty good metal hammering, and a fine looking boiler.
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Old 04-22-2014, 08:07:02 PM
John T Hall John T Hall is offline
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Default Re: 1/3 scale Case boiler

Any castings, progress? Making stays?
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  #55  
Old 04-22-2014, 08:55:26 PM
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Default Re: 1/3 scale Case boiler

Everythings kind of on hold. I've got 13 (full cords) of wood almost cut, yard is cleaned up and ready to mow, I do some repair and sharpening work for local golf courses (spring is a big rush to get everything going). Have some repairs from winter snow and ice damage to do. I am working my way through all this and am looking forward to getting back to the project. I do have most of the stay bolts made and all the stay holes are drilled and tapped. I need the castings before i can do much more. Thinking of a vacation to North Dakota in June to pick up the castings. I called reduction engineering and they have three sets in stock. Everything takes $ and that has everything to do with how this project progresses. Thanks for the inquiry and will deffinitly start posting when things get going again.
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Old 04-25-2014, 12:17:50 PM
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Default Re: 1/3 scale Case boiler

I have built 2 English traction engines with welded boilers. Where the rivets showed as where the smoke box attaches to the barrel I used button head cap screws. On the tender I used rivets. I used cap screws on the wheel spokes. Nobody seems to notice. 99% of the people will love your model. I would recommend just welding the boiler. I don't think you will gain anything with rivets unless you want an exact model. I built my engines to run.
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  #57  
Old 04-27-2014, 02:05:07 AM
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Default Re: 1/3 scale Case boiler

$2850. Plus shipping. I was thinking of taking a vacation in that area. The cost saved on shipping would cover the gas out there. And thanks for the comments on the rivets. Forming everything over the dies was a lot of work and time consuming but I feel that it really was worth it. Right now I am trying to work my way through some personal issues and hope to get back to the project soon.
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  #58  
Old 06-27-2014, 08:44:41 PM
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Default Re: 1/3 scale Case boiler

Boiler has gotten a litttle rusty but it will clean up OK. Just got my casting kit today. It shipped via fastenal. Cost was $196 for 652# shipped from Hazen N.D. to Hastings, Mi. Very reasonable I thought. It took about 10 days. Missing a couple of castings but will be shipped later.Hoping to get back to work on it soon. I have kidney surgery schedualed for July 19. So I'll be laid up for a while with that. It looks like a lot of machining to do. Probably won't get much done till winter. Went to Wauseon on Thursday. My first visit. It was a good day and there were a lot of engines there. I didn't see any 1/3 scale models other than the stationary one that was making ice cream. I had a good time.
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Old 06-29-2014, 11:54:14 AM
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Default Re: 1/3 scale Case boiler

Hope your surgery goes well. I was supposed to be at NTA with my 1/3 scale but work trumped that. I went Saturday to look around and was surprised there were no 1/3 scale engines almost made me want to go 2 hours back home and get mine.
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Old 06-30-2014, 05:28:38 PM
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Default Re: 1/3 scale Case boiler

I had tis old 5 1/2" cutter I adapted to an R8 arbor. I then figured co-ordinances for a 9 5/8" bolt circle (barrel diameter). I then made a test cut on a block of wood. It as off a bit so I adjusted the diameter until the block of wood fit the barrel. I then made a series of plumge cuts on the casting until it cleaned up. I moved the x-0 co-ordinance .050 for each series of cuts. It ended up fitting the barrel pretty close. A little touch on the belt sander should make it a perfect fit.
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