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I know that I stated that aside from the bore/stroke ratio, the engine was going to be conventional, but I'm going to renege. I'm seriously consider making it gearless, using Philip Duclos's Maverick as a model. Also thinking of using an eccentric to activate the exhaust valve. Does anyone...

Thank you Nick. There's only one problem with making chips: I have no idea how I'm actually going to make the thing. So far, this has been an exercise to determine proof of concept and gain some idea of proportion. In fact, I'm thinking I will have to pursue a wooden mockup a little...

Hmmm. Several lookers, no opinions. After further cogitation, I really like the idea of balancing the engine using reciprocating weight rather than rotating weight. How about using the "lever" engine design, but with a counterweight on the end of the beam? Any thoughts on which design...

I took Nick's advice and lengthened the lever. The action was not binding, but was somewhat herky-jerky. It is now much smoother. I had an idea that I pursued. Here it is. The action is the same. I like the original because it is somewhat self balancing. I like the second one because it...

Chuck, I'm thinking of something in the 6" size. It would used be mostly for hole spacing. At this time I cannot see a need to work in angles, but why exclude the capability? Perhaps 100:1 would do just fine on the odd chance I needed it for angular work, but 3.6 degrees/revolution would...

I'm probably thinking wrong here, so please correct me. But if it is given that one turns yields 9 degrees and 1/90 of a turn =.1 degree. Then if one turns yields 3.6 degrees, wouldn't 1/36 of a turn be .1 degree? Then 1/72 turn = .05 degree. Maybe not standard, but I'd think workable. One...

Looks like I'm going to be making a rotary table, set up with dividing plates. Looking through my gear selection, I find a 100 tooth gear with single lead worm and a 40 tooth gear, no matching worm and a smaller 20 tooth gear, single lead worm. I think I can probably make a good enough worm...

I figure that the nozzle could be designed to be water heated, which is more than can be said about the engine. Bill

How about a CO2 rocket powered sub? Consider: No engine, which means no problems dealing with clearances as the engine cools, no lube problems, no prop to optimize, no prop shaft seal, no waste gases, just a tiny pressure regulator that can be adjusted to ensure the tank is empty at the end...

Way back when I was a teenager, I built a small battery powered boat. I had no access to a prop, so I built one. It was built using a drill press, tin snips, file and soldering iron. It was way too large, so I built another one, then modified it's pitch. They are really easy to make. Maybe...

Nick, you don't see a way around that problem and I don't. This guy claims there is a way and he has found it. The science in me says that I have to entertain the possibility he is correct. When others have tried and failed, then it becomes doubtful. When he cannot demonstrate mastery of...

My scientific training is on the biology (entomology) side, but it appears our understanding of absolute zero is (horrors) not quite right. It appears be more more of an average of energy states of the atoms. Deviate from average one way, you have positive temperature. Deviate the other way...

A second musing. Lets say that it is possible to create PM at sub zero temperatures, but the energy requirements to achieve those conditions are greater than any energy "created", does that invalidate the claim? Bill

As I read the article, I do not see a promise of perpetual motion. Mostly, I see a new paradigm, where the rules are changed, making such things as perpetual motion at least theoretically possible. No need to go into the impossibility of PM, I get it. I also understand that as science...

Supposedly published in Science, the preeminent peer reviewed scientific publication. Does not mean it is correct, but I certainly would not reject it simply because it flys in the face of science as I understand it. Be skeptic? Sure. It is like the Theory of Relativity and Quantum Mechanics...

Yes, interesting. I do not understand it, but that does not mean it is not real. Bill

If I was a smart ass, I'd say cut the excess out of the middle. But I won't say that. Seriously, making a spring is a lot like making threads, only you wrap piano wire around a mandrel while the wire is kept in tension. Clamping it between two pieces of board works well. The finished spring...

But he was talking about lard. Edit: after a little time on the Google Machine, I realize he was MAKING lard oil! Bill

Chuck, many, many thanks for the video. All I need now is a dividing head with chuck and a boring head. I do have the milling machine! I do have some questions about the boring head. How big does it have to be? 3"? I notice that your boring appears to be shop made. Is it? If it is, could...

Where are you located? Here is the Midwest of the USA, lard is solid at room temperature. So is palm oil, unless room temp gets up to 80 of so. So in our house, palm oil is semi-solid in the summer, solid in the winter. Lard is solid until it hits the skillet. Bill