Muncaster's Joys Valve Engine

[Florian Eberhard]

Woooah Simon

Stunning work with those conrods!! And they look great!

Regards
Florian

[steamer]

Wow Simon! You n be pleased with those con rods!  They look fantastic!  A lot of work and a lot of steps, but your careful planning really paid off I'd say!   Well done!
Kim

Outstanding Simon!  Simply outstanding!

[ths]

Yes, outstanding, and a great series of shots. When you refer to a radius milling cutter, do you just mean a ball ended cutter?

Hugh.

[vcutajar]

Great conrods Simon. And also great walk-through.

Vince

[Stilldrillin]

 Proper, "joined up" milling!! 

Great to see, Simon. Well done! 

David D

[tvoght]

Great work and beautiful results.
Good that you grew to like the Stressproof after buying 2 big chunks of it!

--Tim

[Don1966]

Awesome Simon, some very impressive steps and the results are stunning. You keep improving with every post. I like..........

Don

[smfr]

Thanks for the comments everyone! 

Yes, outstanding, and a great series of shots. When you refer to a radius milling cutter, do you just mean a ball ended cutter?

Hugh, the radiused end mills I used are like a normal end mill, but have a small radius on the tips of the flutes. So if you just milled a slot, you'd end up with a flat-bottomed slot with a fillet in the bottom corners. They are handy when creeping up to an existing radius, because a slight mistake won't leave a sharp edge. With a ball ended cutter, on a flat part you have to make lots of tiny passes to blend up to a radius, and then you're left with more filing 

They seem a bit hard to find; Enco doesn't sell them, and places like MSC charge ridiculous amounts. I've obtained a few over eBay.

Simon

[Jasonb]

I just freehand grind the corners of blunt cutters to get the same effect.

Nice work on the rods Simon.

J

[metalmudler]

Great stuff Simon,

Watching and reading intently..
As they say.. A Pic says 1000 words.Tnx

Paul

[ths]

Thanks Simon. Hugh.

[Pedro]

Very nice! A1 planning, see what you mean by sleepless nights. Well done.

[Dave Otto]

Beautiful work Simon!


Dave

[Hugh Currin]

Simon:

My first thought was you are crazy starting those parts from round stock. You knew what you were doing though as they came out really well.

Thanks for the build log.

Hugh

[Florian Eberhard]

the radiused end mills I used...
...They seem a bit hard to find

Well you may try with "toric endmill" or "corner radius endmill".