Lamina Flow Engine Help?

Discussion on Stirling or "hot air" engines (all types)
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Man50
Posts: 3
Joined: Thu Feb 21, 2013 11:13 am

Lamina Flow Engine Help?

Post by Man50 »

Hi,

Im building a Lamina Flow Engine, the main material which im using is acrylic 3.25mm thick and using epox to glue together and it is strong. I'm using a Denford Laser Cutter.

New:

Parts List:

Fly Wheel : Aluminum 8mm thick with diameter of 70mm.
Fly Wheel: 10mm Hard drive Bearing.
Piston: Dashpot Actuator
Pyrex Testtube: Full of Steel Wool
Burner: Currently a small home candle.

There is no slack in the base or any other parts.

In my new version i have add rubber O rings to all the seals and there is VACUUM in the piston (i can't tell if its a good thing?)

But can't seem to get it running? any suggestion will update this with more accurate sizes and pictures and a video.

This is a old picture:

Image
Ian S C
Posts: 2218
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: Lamina Flow Engine Help?

Post by Ian S C »

Sorry Man50, can'tsee your picture, what part of the engine are you making out of the acrylic? Is the dashpot actuator aglass tube, with a graphite piston? Ian S C
Man50
Posts: 3
Joined: Thu Feb 21, 2013 11:13 am

Re: Lamina Flow Engine Help?

Post by Man50 »

Yes it's the graphite piston the acrylic is used for the base and the main structure.


This is the old picture will take new ones today.

Image
Ian S C
Posts: 2218
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: Lamina Flow Engine Help?

Post by Ian S C »

Thats better, Can see most except the end filled with steel wool, I suppose thats yet to be fitted in that photo.
The crank big end needs to be tightened up a bit, maybe you could get a bit of metalrod with a hole through itthat would fit on the crankpin without too much shake, and the loop on the con - rodcould fit tightly round the little bush, you could use a bit of glue to hold the bits together. I'll await further photos to see the hot end.
There have been a number of threads on Lamina Flow motors, its worth spending a little time trawling through some of the threads. Ian S C
Man50
Posts: 3
Joined: Thu Feb 21, 2013 11:13 am

Re: Lamina Flow Engine Help?

Post by Man50 »

Here is a Video of it Working:-

Will upload the reset of the designs and cad files for anyone to print.
[youtube]http://www.youtube.com/watch?v=8YN5P0OyjLo[/youtube]
theropod2
Posts: 147
Joined: Tue Aug 16, 2011 5:05 am

Re: Lamina Flow Engine Help?

Post by theropod2 »

Nice, but acrylic?

R

ETA< Oh, I see the acrylic base now. I was so focused on the engine I missed that the first time through.
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