1/8 scale rider-ericsson

[myrickman]

This one took about 6 months to complete. Made all the hardware out of 3/16 SS hex stock. Re-engineered the pump piston to have a sliding check valve instead of the tapered piston in the drawing. This is its second run on Christmas Day 2021.

 

[Eccentric]

Really cool, what a great christmas present. I love the boiler door.

 

[nemoc]

Nice engine! I like all the linkages.

 

[quickcut]

Brilliant , did you have/get/buy plans for it
thanks
charles

 

[stanstocker]

Very nice! I have a Myers casting set for this engine, hopefully the next year will let me get some time in the shop!

Always loved these engines, lots of motion and fun.

 

[myrickman]

Only bothersome thing with this build was making the link from the crank pin to the walking beam. I had to offset the shank to one side to get it to fit correctly. I think this was because of how I positioned the flywheel support on the base to make things “look” right and have the bolts centered on the foot of the flywheel support.

 

[myrickman]

Setup for machining the mating surfaces on flywheel support to ensure they‘re parallel to crank axis. The casting is shimmed to get best fit before boring for the crankshaft bearing.

 

[davidyat]

I applaud anyone who can get a Rider Ericsson to work. Mine is just a paperweight now. Just couldn't get any movement out of mine. OH, WELL!
Grasshopper

 

[Michel ROBIN]

Hello, here is the one I made in 2019, the casting is from Myers engine, 1/8 scale.
Not too difficulties to make it work, no substantial modifications, apart from some modification of machining dimensions to adapt to the foundry (not always very precise). I put 1 vitton seal at the bottom of the cylinder to avoid water leaks, a pump with a cylindrical piston and a gas heater, the most complicated was to manufacture and adjust the burner.

 

[Marmech]

The firebox under the stand looks great, I've not seen that before.

 

[marvin hedberg]

i have built 1/10th(.800), 1", 2" and 3" Ericsson models, the 3 larger from Meyers kits.
the key for all hot air models is close fits with no friction. i hone and polish the bore and then fit the pistons with .0005 clearance and no rings.
i used a Farmall A tractor wet sleeve for the 3", turned down to .100 wall.
the blue one is the 1/10th and the red is 3"

 

[creast]

Some beautiful work displayed here.
I am just embarking on making my own in 1/8th scale.
Castings are not available here in the UK so far as I can see so I am doing my own.
Thanks for the inspiration!
Rich

 

[Nikhil Bhale]

Beautiful work.
I am in process of building one myself is 1/8 scale.

Regards
Nikhil

 

[myrickman]

Some fine additional models on this thread. Well done gents. I used my friends Sunnen hone to get the bore dead true then sized the piston for a half mil clearance. Still, it took several sea trials to get running decently.