Bruce Macbeth Engine, European Version

[gbritnell]

The engine is coming along nicely Achim.
gbritnell

[fumopuc]

Hi George, thanks for visiting and the friendly comments.

[fumopuc]

Hi everybody,
also the forum software has recognized, that there was nothing new since 120 days at this thread.
As mentioned already in another posting, work life kept me very busy during late summer and fall.
But some more parts has been made in the meantime.
Conrods are finished and a temporary base plate.
The next picture is showing the, from ETG 100 (similar 1141 stressproof),  already prepare blanks for the crank shafts.
This was made beginning of October already.
Last picture is made at last Tuesday, so we have another little progress.
Currently I am milling the next slots in the crank shaft blanks.

[propforward]

Those are very high quality parts - I expect you are very pleased with those, and rightly so. That is a nice pile of chips on your mill!   

[fumopuc]

Those are very high quality parts - I expect you are very pleased with those, and rightly so. That is a nice pile of chips on your mill!   

Thanks Stuart.
Unfortunately is my band saw to small to cut such big pieces off.

[steam guy willy]

Hi, I love the way the 21st century technology is making something very 19th century looking.    Great work loving it 

willy

[Dave Otto]

Nice progress Achim, everything is looking great!

Dave

[scc]

Nice

[fumopuc]

Hi, I love the way the 21st century technology is making something very 19th century looking.    Great work loving it 

willy

Hi Willy, good to know that you do like it. Thanks for the friendly comment.

Nice progress Achim, everything is looking great!

Dave

Dave, thanks for still watching my slow motion build.

It seems to be, that all 4 conrods will have found a new home where to live in future.

[fumopuc]

Nice

Hi Terry, thanks vor watching.

[fumopuc]

Some further progress during crank shaft machining.
First time I realized, that my Proxxon band saw is able to cut steel like butter.
A bi-metal band saw blade with 10/14 teeth/inch was used.
Making an octagon of each shaft end will help for further smoother turning operation.

[fumopuc]

Hi everybody.Crank shaft machining next steps.
The outer shafts and one inner shaft seems to be fine so far.
And we do have some new motion so far.
<a href="https://www.youtube.com/watch?v=oww9eBGhUpE" target="_blank">http://www.youtube.com/watch?v=oww9eBGhUpE</a>


Merry Christmas

[Admiral_dk]

Nice progress Achim - it is always good to see things go round 'n' round as they should 

I can't remember if you have shown how the two halves go together - is that "just" the bearing + a locking pin to garantie they follow each other ?

[fumopuc]

Nice progress Achim - it is always good to see things go round 'n' round as they should 

I can't remember if you have shown how the two halves go together - is that "just" the bearing + a locking pin to garantie they follow each other ?

Per, thanks.


After getting the second crank shaft half in the same condition as the one in the video, than my next challenge is shown in the picture.

[Admiral_dk]

I hope that you drawing isn't an accurate representation 

Either the ball bearing should be much wider or the milling removal of material on the adjacent axles should be different, so you have much more support .... but I get the idea.