Search results

Jenny Please make sure you stay in touch. This is one engine I want to build but I will be building it completely from scratch.

AzBob Great stuff. Let me know how it goes. Are used mine last night to machine some sectors on a plate works really well. But of course with no manual of any kind it’s difficult to know what some of the other features are. When you get yours and start using it let’s stay in touch. I could sure...

Hey All I have spent the last few months building the 6 Cylinder Radial Pneumatic Engine. After assembly it will not run. So I started to try and analyze what the problem may be. I think it is in the air valve configuration. The crank has an offset pin that move a valve eccentricitly over a set...

Unfortunately no. As you can see there are 3 Spaces to the left of the decimal place and only one afterward. And the smallest division that last decimal places is .2 . I am not sure why they built that way seems to me.1 would make more sense

So help me out here guys. If we only see One decimal place and The division is 2. That means .2 of a degree which means you could not do half degrees it would only be in divisions of .2 . IE 25.4 or 25.6 not 25.5deg. Which for most things we do it’s probably not a problem. I have cut...

So here is a screen shot of the read out. As you can see when manually moved the movement is .2deg. I can say after a 360 deg revolution it is dead accurate back to the same spot. But the smallest movement is .2deg

I like the ability to machine with it. I set it on speed 1 and can machine quite nicely

Sorry about that. I did check the runout on the taper before I disassembled it. It was less than .0002” run out

No problem. I did that right after I got it before I dissaem

That would be fantastic. I love the sound. If you have any notes on the build I could email you as well.

Nice job

I am away right now. When I get back I will run a series of tests on it and report the results. I know when I did the 90° cuts then ran the dial indicator on them it was dead on.

Very nice. Where did you get the plans for this one?

I will check it out. The build Rudy referred to is something to strive for

Sorry guys this thread somehow got moved (my bad). The pictures and drawings are on a different thread

Thank you so much for your interest. I could sure use the help. And it is a GrabCad engine that probably has never been built.

Has anyone seen an air valve system like the one on this engine?

This is May first radial. But I was wondering. Would the firing order (air in) be 123456. Or something different?

So here is some interesting drawings to look at. I have built all these parts and by changing one rod to a master rod it turns over by hand very easily. I posted the drawings because when I put air to it it does not rotate. I think it has something to do with the air Valve. As you can see the...

You are right. Works like a charm now. Interesting I got this drawing from GrabCad. Nice plans and a great 3D exploded view. But no master rod on the drawing. If anyone uses these plans make that modification. Thanks again for the help.