Tiny Vertical Based On G. Britnell's Design

[sbwhart]

Thanks for your interest and kind comments lads

I ran the engine for about two hours yesterday whilst I gave my shed its monthly clean out and straw change part way into the run it developed a higher buzz I though that sounds like the little end bearing has gone, It was still running so I just left it to get on with it when I stopped it the little end crank pin was gone:- really gone couldn't find it any ware, I guess the nut had come lose and the pin had moved that what was causing the higher buzz then when I stopped it and moved it the pin had dropped out to be collected by the shop Gremlin

 

This morning I made a new pin and tried it with the taco:-

She just touches 4000 rpm and 40 psi and slow running 5 psi she's doing just short of 500.

I found that she is sensitive to the viscosity of the oil she uses,

Sticky Sideways  oil gives the slowest run, then 3 in 1 oil the best is with WD 40, which is more or less what you would expect from best to worst is 2000 rpm to 4000rpm.

Cheers

Stew

[sbwhart]

I've been tinkering about with it for long enough now so I decided to make a nice wooden base.

So I salvaged a chip off the old thrown

Tiny Vertical Based On G. Britnell's Design

I don't know what sort of wood it is some sort of oak judging by the way the grain runs up and back, when we bought it, it had a label proudly saying "made in the USA" so perhaps some of you guys will know what it is.

I must say, with the greatest respect, you guys know how to make a darn fine comfortable thrown

 

Tiny Vertical Based On G. Britnell's Design

It machined up very nice.

Tiny Vertical Based On G. Britnell's Design

And here's the final video, it runs real well but for the video it was very temperamental, after the video I put it on the bench and it ran bountifully, I think we may have some sort of gravity effect on the linkage.

     

I'm revising the drawing at the moment so will post them for down loading in a few days

Stew

[NormanV]

An amazing project, well done!

[tom osselton]

"I see the coin there is it "pay as you go?"   

[Manxmodder]

Stew said: I don't know what sort of wood it is some sort of oak judging by the way the grain runs up and back, when we bought it, it had a label proudly saying "made in the USA" so perhaps some of you guys will know what it is.

It looks remarkably like Bog Oak to me .....Sorry Stew,I'll get my coat and leave quietly .

Really impressed with the engine. ......OZ.

[Bluechip]

Stew said: I don't know what sort of wood it is some sort of oak judging by the way the grain runs up and back, when we bought it, it had a label proudly saying "made in the USA" so perhaps some of you guys will know what it is.

It looks remarkably like Bog Oak to me .....Sorry Stew,I'll get my coat and leave quietly .

Really impressed with the engine. ......OZ.

    

Same occurred to me but as I've had one Bol*****king today for what seemed to me to be a merry quip, I've kept me trap shut ...    guess who's been given a Valentine card and omitted to purchase a reciprocal item ..   

Stew: Could be this wood ... fairly common, even imported into UK at times.

http://en.wikipedia.org/wiki/Quercus_alba

Dave

[steampunkpete]

Beautiful work.   

As always I am jealous of the skill that I don't have; I must work harder.

[prallplatte]

Real micro-machine production. I need new glases!

[Stilldrillin]

Crackin' little engine, Stew! 

Well done...... 

David D

[sbwhart]

Sorry Chaps, I've been a bit late getting back to this, holidays and that:- but thanks for your comments.

I've finally got the drawings updated, if any one would like a copy just drop me a PM with your email address and I'll email them back with the drawings.

Cheers

Stew

[Ginger Nut]

What a top little motor thanks for the build wip.
The base wasn't a crappy idea just hope it was well cleaned before being handled