Compound – Eccentric Rods


Eccentric Rods

Hello Ladies and Gentlemen.

Now it’s time for the head, that connecting the valve road with the eccentric rods.

A piece of mild still in the lathe…

Eccentric_Rods_063

…and some turns and center drill.

After drilling  and cut off…

Eccentric_Rods_065

…then in the mill some more drilling for connecting to the eccentric rods.

Eccentric_Rods_066

Then with an end mill…

Eccentric_Rods_067

…and it begun to look as a head.

Eccentric_Rods_068

Then some threading for connecting to the valve rods…

Eccentric_Rods_069

…and then finish off with some end mill.

Eccentric_Rods_070

After some work with a good fill and some polish…

Eccentric_Rods_071

…and here is how it looks on the engine.

Eccentric_Rods_072

Next the eccentric.

Eccentric_Rods_073

First I have to center drill…

Eccentric_Rods_074

…then some turn on the lathe…

Eccentric_Rods_075

…and then turning the small track on the eccentric.

Eccentric_Rods_076

Half way done.

Eccentric_Rods_077

And now a very crazy setup, I was force to use the cuck from mu unimat be course   I was unable to clamp it to the original chuck.

Eccentric_Rods_078

Center drill…

Eccentric_Rods_079

…and drilled…

Eccentric_Rods_080

… and reaming.

Eccentric_Rods_081

Then drilling and trheading for the stop screw.

Eccentric_Rods_082

And this job was finish…

Eccentric_Rods_083

…and mounted.

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Now the last part, the eccentric rod.

Eccentric_Rods_085

First I have to measure and mark out where to cut and where to drill…

Eccentric_Rods_086

…then drill the hole for the bolts before cutting off the parts.

Eccentric_Rods_087

I’ll then use an end mill so the bolts head could fit better…

Eccentric_Rods_088

…on both side.

Eccentric_Rods_089

Then with my hacksaw I cut the part…

Eccentric_Rods_090

…and threading the bottom part.

Eccentric_Rods_091

Some turns on the lathe…

Eccentric_Rods_092

…and then borring the inside…

Eccentric_Rods_094

…and checking so the hole fits well to the eccentric.

Eccentric_Rods_095

Next I have done a little special for turning the track inside the eccentric rod.

Eccentric_Rods_096

And again checking the result…

Eccentric_Rods_097

…then back to the mill for milling the surface…

Eccentric_Rods_098

…and then some more milling.

Eccentric_Rods_099

And now some filling and polish…

Eccentric_Rods_100

…and the result…

Eccentric_Rods_101

…and then mounting to the engine.

Eccentric_Rods_102

Well she is beginning to look like the real thing. It is not so many parts to manufacturing but it’s still long way to go before she’s run.

I’ll be back.

Benni

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About Benni Svensson

I am an happy retired man with many interest. I have been building models in my whole life, everything from aircraft to regal ship. I have build steam engine before, but now, I'll got plenty of time...
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