Author Topic: Pipe and Bolt Engine Mod-Up (Read 167044 times)

vtsteam · « **Reply #25 on:** January 04, 2015, 06:15:38 PM »

Well ya gotta start somewhere..... 1/2" CI pipe union:

vtsteam · « **Reply #26 on:** January 04, 2015, 06:19:41 PM »

Bored 3/4" first, then mounted on the conveniently sized 3/4" center spindle of the faceplate. Bolted the dog through the slot, and started turning the end...

vtsteam · « **Reply #27 on:** January 04, 2015, 06:24:18 PM »

And faced and turned both ends:

Looks a little more like a steam cylinder now.....

Manxmodder · « **Reply #28 on:** January 05, 2015, 07:03:34 AM »

Have you finished it yet?

....OZ.

vtsteam · « **Reply #29 on:** January 05, 2015, 11:43:00 AM »

Haven't even exactly thought of what I'm going to do with it yet, OZ!

Manxmodder · « **Reply #30 on:** January 05, 2015, 02:59:55 PM »

Oh,I see it's one of those 'We'll just machine some bits of metal and decide what it's gonna be later on'

If you want a good laugh you want to see the sizes of the cast pipe fittings my mate gave me a couple of weeks back. They came out of an old commercial laundry business and there is nothing smaller than
1.5 inches dia

and a few are 2.5 inch dia.

I think we may be stretching the definition of 'Model engine' if I use them

Maybe I could hook it up to the 1 kilowatt Markon alternator that I have kicking round to provide a back up gen set for those power cut eventualities

......OZ.

vtsteam · « **Reply #31 on:** January 05, 2015, 06:27:27 PM »

Quote from: Manxmodder on January 05, 2015, 02:59:55 PM

Oh,I see it's one of those 'We'll just machine some bits of metal and decide what it's gonna be later on' ......OZ.

That's what I call planning ahead.
All the planning is ahead of me!

Hey, 1.5 inch bore ain't exactly a mill engine. Get crackin' !

Uh, happened to discover a 3/8" mark on my cylinder, so I guess it was a 3/8" pipe union, not a 1/2" as I originally said. Now it's 3/4" bore, though.

So today I dug out a (I think) 1" galvanized pipe cap with a hole in it from an earlier experiment with pulse jets. The hole was off center, but I planned to drill it out big enough to get a boring bar in it, and then true it up to center. Unfortunately that didn't go well. I chewed up the end of my 5/8" drill pretty bad before realizing there ws a hard spot in the cast iron.

vtsteam · « **Reply #32 on:** January 05, 2015, 06:38:26 PM »

Well I don't have any carbide drills, so after thinking about for a bit I figured I might try to see if I could anneal the darn thing in the woodstove in the house. It had a big pile of hot embers in it (it's been super windy last night and today and we're headed down to the negative numbers Fahrenheit for the next week) -- being well stoked. So I buried the fitting in the embers and opened the draft up, and let her cook. I figured it would also deal with the zinc coating -- right up the chimney.

When I pulled it out cherry red, I buried it in some wood ashes in a bucket. A half hour later this is what it looked like cooked. The area where the "C" is was the hard spot -- you can see the crap job I did with the drill!

vtsteam · « **Reply #33 on:** January 05, 2015, 06:43:17 PM »

Slapped it onto the Gingery lathe, and it drilled, and bored, and turned, nice as you please......cut like buddah!

vtsteam · « **Reply #34 on:** January 05, 2015, 06:51:22 PM »

So I'm kinda thinking along these lines:

vtsteam · « **Reply #35 on:** January 05, 2015, 06:55:37 PM »

But then I thought, nah, I want to see the woiks! So I started sawing away with me hacksaw:

vtsteam · « **Reply #36 on:** January 05, 2015, 07:00:03 PM »

vtsteam · « **Reply #37 on:** January 05, 2015, 07:40:49 PM »

vtsteam · « **Reply #38 on:** January 05, 2015, 07:48:32 PM »

Here's where I left it this evening:

Brass_Machine · « **Reply #39 on:** January 05, 2015, 09:24:48 PM »

It is hard to believe the piece you took out of the stove is the same piece holding the cylinder right now.

Great start!

Eric

vtsteam · « **Reply #40 on:** January 06, 2015, 10:30:44 AM »

Well Eric, as I always say, rusty is only skin deep!

....was happy to discover you could anneal chilled cast iron, btw. I didn't know that. Could solve a lot of problems.

vtsteam · « **Reply #41 on:** January 10, 2015, 04:29:32 PM »

Since there are no other contestants (so far) I've got this one nailed!

shipto · « **Reply #42 on:** January 11, 2015, 12:04:35 PM »

Only half an idea but i am thinking about air driven at the moment and like you vtstream I am making it up as I go along. So far I have the beginnings of a piston.

vtsteam · « **Reply #43 on:** January 11, 2015, 03:26:55 PM »

WooHooo!!!!

vtsteam · « **Reply #44 on:** January 11, 2015, 05:19:03 PM »

Thanks shipto!

Well, today I decided I needed some flat stock, so:

vtsteam · « **Reply #45 on:** January 11, 2015, 05:21:24 PM »

Cutting down on the seam:

vtsteam · « **Reply #46 on:** January 11, 2015, 05:23:09 PM »

Then crosswise:

vtsteam · « **Reply #47 on:** January 11, 2015, 05:24:54 PM »

And then flatten the pieces with a hammer:

vtsteam · « **Reply #48 on:** January 11, 2015, 05:28:06 PM »

Cut them into pieces and file them in the vise to clean them up:

sparky961 · « **Reply #49 on:** January 11, 2015, 10:11:21 PM »

Quote from: vtsteam on January 11, 2015, 05:28:06 PM

Cut them into pieces and file them in the vise to clean them up

If nothing else, you should get a huge prize for creative misuse of plumbing hardware.

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Whose engine in this first ever Mod-Up deserves the coveted Brass Machine trophy!?

Author Topic: Pipe and Bolt Engine Mod-Up (Read 167044 times)