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Thread: Your latest project
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9th August 2010, 11:11 AM #31Novice
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HI Stuart,
The cylinder was turned from 3/4" Brass square and it is the exhaust port you can see on the top. The steam chest goes on the flat face towards the top of the picture, on the side of the cylinder. Very frustrating weekend - breaking a total of three taps as I was starting to assemble on the base plate. Anyone know a way of removing a 10BA tap in 6mm steel?
The Argus name plate that Graziano has done is for my first engine - the oscillator shown a few posts ago, and will be attached to the jarrah base it is on.
Pete
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9th August 2010 11:11 AM # ADSGoogle Adsense Advertisement
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9th August 2010, 12:13 PM #32GOLD MEMBER
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9th August 2010, 12:41 PM #33Novice
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Hi Stuart,
Carbon tap. Rather than scrap the baseplate I have bolted the cylinder down via three of the four feet and will fake up the last fitting. The other bolts have been upped to M2 size as the 10BA (1.4mm diameter) seem to be too weak to go through the thickness of steel that is the baseplate. As I regards these two engines as my 'apprentice' work on the lathe/mill combination that I have I don't see them running that often so the stress will be minimal. Basically as long as they run I'll be happy and can continue on to the next project. Not the best policy really but with limited time and resources I have the most realistic.
The next project however will have to be right - looking at building a Blowfly locomotive and riding car.
Pete
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9th August 2010, 01:55 PM #34GOLD MEMBER
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you guys really rub it in when you post pics of stuff you've made
...I think I should just stick to collecting tools, machines and accessories etc etc...i might not feel so bad
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9th August 2010, 02:24 PM #35GOLD MEMBER
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WA Pete
Carbon. great. Could you heat the plate up, annealing the tap so you could drill it out?(never tried this, just a thought)
Stuart
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9th August 2010, 02:32 PM #36GOLD MEMBER
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lol eskimo, I'd say thank you but as the engine I made doesnt work, so I'm not sure it counts? Although even if it never works it was a good excise in work holding, as all the parts were made on a lathe(with a small amount done on the vertical slide).
Stuart
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9th August 2010, 02:56 PM #37Novice
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Hi Eskimo,
If your talking to me - this is the first time i've used a lathe since high school back in the 1970's. My lathe arrived February this year. It's just a case of practise - and a very large scrap bin
Mind you I keep the scrap as one day I would love to get into casting.
Stuart - Might be worth thinking about - altough I wonder if it would warp the steel - I spent two days taking light cuts (all my machine can do) to level the plate!
Pete
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9th August 2010, 03:49 PM #38GOLD MEMBER
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WA Pete hopefully someone that knows more about these things will turn up but, 300C might be enough(how hot does your overn go?), thats more tempering than annealing but maybe enough, we are only talking about one hole after all.
As an added bonus about 300C should turn your plate a nice blue. I doubt it will move much.
Anyone?
Stuart
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9th August 2010, 04:31 PM #39GOLD MEMBER
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19th August 2010, 03:33 PM #40Novice
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Finished!
Well here is the finished engine on it's stand. The nameplate was by Graziano (see his thread here https://www.woodworkforums.com/f12/en...plates- 121349 )
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19th August 2010, 03:44 PM #41GOLD MEMBER
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Nice.... Although you had me confused for awhile thinking it was your other engine.
Whats the fitting on the exhast(?) port for?
Did you get yoru tap out of the other engines plate?
Stuart
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19th August 2010, 04:01 PM #42Novice
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Hi Stu,
Havn't been out to the shed all week - suffering from the flu at the moment
The fitting at the top is for attaching an air hose (at the moment I run on air not steam), with the other hole the exhaust. To run the engine in reverse you unscrew the hose adaptor and screw it into what was the exhaust, with the old inlet becoming the new exhaust.
Clear as mud really
Pete
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22nd September 2010, 06:20 PM #43
This thread hasn't been updated for a while so I thought I might add to it.
I have finally finished my first model engine - a Sterling engine. I started it months ago as a learning process for using my new lathe. It came as a kit of bar stock with working drawings. It wouldn't work initially and I left it for a month or so after completing the main body. Last week I decided to play with it and found that I could get it to work if I added lots of heat- in the form of a butane torch.
With this info I then just aligned it better and used graphite as the lubricant in the cylinder. I then made the simple stand. It now runs with the metho burner.
[ame="http://www.youtube.com/watch?v=296Fr_dfdlo"]YouTube - Sterling_engine.MOV[/ame]Terry B
Armidale
The most ineffective workers will be systematically moved to the place where they can do the least damage - management.
--The Dilbert Principle
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22nd September 2010, 07:26 PM #44
wow that looks it will be the center of much conversation and intrigue where did you buy the kit from?
happy turning
Patrick
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22nd September 2010, 07:33 PM #45
The kit is one of these
A1-3 Stirling Engine Material Kit (Model Maker Kit) - eBay Other Tools, Supplies, Tools, Supplies, Model Building, Toys, Hobbies. (end time 27-Sep-10 16:46:47 AEST)
Bought before I cottoned on to the shill bidding problem see
https://www.woodworkforums.com/f65/wh...ctions-119867/Terry B
Armidale
The most ineffective workers will be systematically moved to the place where they can do the least damage - management.
--The Dilbert Principle
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