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| Tandem Compound Poppet Valve Steam Engine Build, ala Cedge |
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| Divided he ad:
Well, I thought you were going to produce something stunning, special and innovative Steve..... Holy 5417!!! :jaw: :bugeye: :jaw: It seams I was correct :thumbup: Gotta love the way the mind figures all this stuff out ehh? :smart: Most impressed/dumbfounded/flabbergasted :scratch: ( take your pick... :) ) Ralph. |
| cedge:
Thanks Ralph.... I'll choose flabbergasted..... LOL I spent today sitting on the back deck in the sun with a small file and four small pieces of brass in hand. I decided to take it easy, after having broken a rib (the short floating one at the bottom of the left rib cage) over the weekend. Standing in front of the mill just didn't have a lot of appeal for, some reason. I did manage to get most of the tool marks removed as I hand shaped the pieces. Unfortunately, this turn of events is likely to slow my progress for a few days. I'll get to a few minor items, but I'm going to give the next push some delay to let some of the soreness diminish. Anyway.... here is what the pieces look like with a bit of hand work and a spot of polish. they'll still need a minor modification to the bases, but they do fit nicely. http://cedesign.net/steam/images/misc/multi-valve/build/arm-11.jpg Steve |
| Bernd:
Amasing what a back porch and bit of sunlight can produce. A can or bottle of your favorite beverage would have gone along nicely with that filing job and may have helped alleviate the pain a bit. :) Bernd |
| cedge:
Bernd.... Trust me.... the favored beverage idea was a serious consideration later in the day. If I hadn't been removing very tiny spots of metal by then, I just might have succumbed to the temptation. No telling what I'd have had to correct tomorrow....LOL Steve |
| madjackghengis:
--- Quote from: cedge on May 10, 2010, 01:20:50 PM ---Jack... I'm smarter than that. I put her on the list of "to do's" and then I'll let time take its toll on her memory. It'll still be there on the list but it isn't going to move very much. If her memory doesn't fade quickly, I can show always her it's still there....... when I get to it. .....LOL. A wise friend told me that his shop existed only to keep him entertained and occupied until he's called to a higher place. I had to agree with his definition. Time has no real meaning in such a place, so if it takes 1 minute or 12 hours, it's just what it takes to get it right. I've used the paper trick as well, but the shim stock is just easier to keep right there on the machine. It has a small nest just above the quill's fine movement dial. I've never really noticed any problems with it, but I work by feel. The minute can feel the end mill scratching the metal, I reset the DRO. Since the scratching doesn't leave any visual mark, I figure it's somewhere around .0001 - .0002 plus, or minus. I might use that level of tolerance for marking out, but would need a much more rigid machine to actually mill in that nether region. I finally found something that will produce a nastier ribbon than stainless. I recently played with a marine grade of cupro-nickel which is still in the bronze family. Wicked stuff. If it isn't making razor spirals of death, it yields millions of microscopic needles that can penetrate nearly any substance known to man. I'm eventually going to use it for an engine project, but I'm not in a hurry.....LOL The stuff makes 304 stainless look user friendly. Steve --- End quote --- I figured you'd had the experience and just chose the other way, for those with a keen sense of touch it doesn't really matter, it's the attention that does the trick. I've run into that cupro-nickel you're talking about, the last machine shop I worked in specialized in boat shafts, repairing, straightening, and replacing with new, and I have to agree, that stuff makes stainless child's play. That is a fine looking pair of stanchions you've got filed and sitting on the cylinder, they fit the image of the rest of the work right nicely. That rib thing will go away before you know it, and you'll be standing in front of the mill in no time. Damn shame a bit of silver solder won't fix such things so easily. I'm looking forward to seeing it either standing up, or laying down, with a con rod and a crank attached. :beer: :headbang: mad jack |
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