Handed Stuart Triple

[Steamingandy]

Slightly different Stuart Triple this time, it’s will have a bronze base cast from a 3D print (not by me) the rest of the castings are an eBay set that has had the cylinder block started, but I will need to rework it to change the inlet/outlets over.
The crankshaft is one I made earlier from stainless I will also use stainless for all the steel bar stock, well that’s the plan.

[Roger B]

Looks fun     

[Michael S.]

The machine base looks interesting!
I wish you good luck.

Michael

[Steamingandy]

This is the process I use to manufacture the connecting rods hopefully the pictures tell the story

[Steamingandy]

And the rest

[Kim]

That's a really interesting sequence of operations there!  I haven't seen it done that way before.

I really like the little brass end support you made to bolt between the fork for turning the reset of the connecting rod.  Very ingenious!

Kim

[Roger B]

A well planned manufacture  The conrod remains in the same chuck until the final cut off?

[Chipswitheverything]

Thanks for detailing this in your excellent series of photos.  I'll bookmark the procedure for when I may do some rods for my triple!   Dave

[Steamingandy]

A well planned manufacture  The conrod remains in the same chuck until the final cut off?

Yes it does, by having a centre between the forks pulling straight out of the Chuck holding against a centre and re tightening it stay true.

[Steamingandy]

Just remembered don’t throw the end pice of material it’s perfect for machining the out of the big ends

[Steamingandy]

I have never seen a solution for supplying oil to the big ends, so I decided to try this a 1.6mm hole through the rod with a countersunk hole at the top under the cross head, it will either work or fling oil over the cross head, we will see.

[Steamingandy]

A little more progress on the handed Stuart triple, the first machining of a newly cast bronze base, it will certainly stand out from the standard engines, the pictures show the process steps.

[crueby]

Coming along great!   

[Admiral_dk]

Looks like a Very Nice Casting and as there was no complaints - I guess that it is a good Material to work on 

I can relate to the sequence you use - by first milling the bottom flat, to get a reference - and then continue from there 

Per

[Steamingandy]

Looks like a Very Nice Casting and as there was no complaints - I guess that it is a good Material to work on 

I can relate to the sequence you use - by first milling the bottom flat, to get a reference - and then continue from there 

Per

One of the most frustrating things about the Stuart drawings for me is the lack of any datum’s, and the fractions