Recent content by Andrew Pullin

Hi Guys, I was searching for other information and stumbled on to this thread. I have 2c worth for you. The largest car maker in the world is Toyota. Only 10% of the new cars they make are electric or hybrid. All of the others are IC engines. Toyota is also one of the leaders in the Hydrogen...

Hi All, Disregard my previous about Files. I have found them. Andrew

Hi All, Being a newly minted engineer (as in Diploma not Engineer with a Degree), obviously I have a head full of knowledge and no real world experience. I am also learning quite a lot including self learning (I have a book and I am not afraid to use it!). The current book I have is about the...

Thanks for the offer of books. A scan of the pages would be nice thank you (I have a nasty habit of not returning books but I also have an extensive library :) ) Scaling things up and down are useful exercises for me as I am at Engineering School so it helps to fill in blanks and make me think...

Hi All, Some good feedback and interesting suggestions. A couple of points to clarify (but thanks to those that made suggestions otherwise). The point of this exercise is not so much to build the generator but to work out how I would build it. As mentioned, there are many Science Fair projects...

Hi All, My Mind works in a very convoluted way sometimes. It occurred to me that Steel Flywheels would be perfect to simply stick Magnets to, and if I have a coil(s) of copper wire that these magnets rotate past then it would produce a voltage and current. This is basic Faraday's Law and the...

Hi All, These are a set of Production Drawings in PDF format of Ken I's Metric Beam Engine Plan. The original Plan was a massive A0 sheet which looks great on my wall but not good for a workshop. Ken's plan was originally a version of Gerry's Beam Engine. I have permission from Ken to post...

Right now the design is a can I do it and could it actually be fabricated - a prototype is on the cards but beyond that I don't know. The plan was to make the Cylinder and Piston out of MS. Are you saying my suggested Tolerances of 0.05 are too lax or the recalculated ones of 0.02. The first...

Hi Charles, So if my Cylinder is 20mm then 20/1000 = 0.02mm. Is that clearance in general for a smooth fit or does it take into account thermal expansion? I suggested that 0.05mm might work so a 20.00mm Cylinder should be toleranced at between 20.00mm and 20.05mm. I also suggested that my...

Hi Guys, My engineering School encourages us to get into our learning by getting our hands dirty so as such I am putting my extremely limited knowledge to work. I am designing a simple Wobbler Steam Engine - Bore 20mm, Stroke 40mm for a capacity of about 12cc. There is about 10mm of overhead...

Hi Thad, Good catch! All I did was extract the Drawing from the huge original and turn it into production Drawings. I literally cut and pasted every one and the only changes I made were to scale and fit on the A3 and A4 pages. On looking at the Drawing it seems to me that you use 6mm Diameter...

Hi John, Thanks - I will send a message to them. They were provided free to download and I have simply transposed them onto smaller Production Sheets without any changes. I also made sure they were accreditted to this site and both people. I used it as a learning exercise to bring my AutoCAD...

Hi All, Fusion 360 is a lot more than a "simple CAD program" - it is on my learning list for Engineering School but I am not quite there yet. There have been a lot of good suggestions so far in this thread but here is mine: I learned AutoCAD first and I taught myself using this site...

Hi Guys, I have recently finished transposing the Metric Plans of Gerry Beam Engine drawn by Ken I into individual Production Drawings. I did this as an exercise to practice up my AutoCAD and to learn the Australian Standard 1100 which is the Engineering Drawing Standard we use down here but...

Hi Brian, Frightening wasn't it? This one is even BETTER! https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion) I like this line: Early versions of this vehicle were proposed to take off from the ground with significant associated nuclear fallout; later versions were presented...