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Ian, STEP format is the most widely used data exchange form It is possible your CAD software does not allow to convert to stp or step format. But seeing your 3D images I thought you were using one of the latest CAD software. The older versions of AutoCAD (for instance) does not allow to export...

Hi, Thanks for the drawings, Nice thread btw. Would it be possible to convert the complete assembly to stp or step format and post it on the forum please. I like to walk through. An inside view is always very impressive...;) I think this engine will be a candidate for a school project next...

Hi, I visited CrabCAD in the past. Don't know about other engines but most of the Stirling engines drawings are not complete, so be aware..! This one looks great..! Thanks Rich Chris

again very nice indeed...! knap werk, ik wil wel een copieke van die plannen Jan...;-)) Chris

And what's more, most of the tools we use are moderately oiled by using them. So were is the problem...?

That's what I thought to at first but one side is already done...pity... Chris

Dunno, Just try it, my guess is it will not. But what will help, if the six holes are done, use these holes to screw lead leftovers in close contact with the flywheel. The lead will absorb the vibrations. BALANCE...! Chris

Supporting the flywheel by that thin main shaft, it could be the flywheel will start to vibrate messing up the surface you're about to finish. In case this happens just put the flywheel in the lathes chuck protecting the flywheel with thin aluminum leftovers. Let's hope for the best... Chris

Nice...! Which one are you going to build..? Chris

Thanks Reneé I had a inside peek, looks nice...;) Chris

I to teach and learn our youngsters to work with lathe, millingmachine, etc... I think the conventional and CNC work should go hand in hand AFTER they have learned it all on conventional machines. Chris

Yes I did, but did not succeed. The aluminum got to hard to proceed. Instead of a cylinder I got a nice cone shaped thing. Annealing is the key I suppose. During my first trial I worked with a fixed stud to do the pushing work. For the next trial I made myself a rotating tool, with a roller...

Hi, Could you also post a 3D version of that engine, so we could have a look inside and around it. If you do just save your project as STEP or STP format. Most of the 3D software programs can read it. Chris

star sign mumbo jumbo....:rant: :rolleyes:...;)

Nice one and you're in Tiffany to I suppose..? Chris

Paul, You made an 'astronomical' mistake, telling you saw some astrological telescope. To be clear astronomy is a real and serious science. Astrology is ab-so-lu-te-ly NOT...! Chris

Hi, Some pictures would tell us more... Chris

Hi, We here in Belgium also get some snow every year. Not one city or community in our country is equipped with the necessary tools to remove quickly snow from our roads. Only a few mobile snow shovels are available. When snow starts to fall the government waits for the right moment to...

Thanks...!

Hi, For all cutting action, lathe, milling, drilling I use (own formula) a mixture 50% standard oil - 50% White spirit (Belgium , don't know the English name for White spirit..(help..!) Works very well...! Used with aluminum it gives me, every time again, a high glossy surface. For reaming...