Stirling LTD-GTID

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Chriske

Well-Known Member
Joined
Jun 19, 2010
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Hi guys,

This one is also a school project, almost finished, (partly)on hold. 31 units have been made this schoolyear.
Almost finished, because I have a small problem. While assembling the units we discovered that the pistons, made out of stubsteel, were to small and on top of it not perfectly round at all. Lucky me I had a small stock of old Stubsteel so a few of these units have been finished and running.
It's a engine of own design and is partly made out of resin. One of the reason to use resin is make the upper cover 'containershaped' to allow some extra cooling, water/ice on top of the engine. Another reason to use resin is to learn my pupils the molding/casting technique.
As school is finished now the rest of the engines have to wait to be finished until the start of next schoolyear.
Needles to say my pupils loved to make these engines.


The specific colors in the upper cover has all to do with the color of their individual footballteam... :D

[ame]http://www.youtube.com/watch?v=OpYtIoTWi3k[/ame]


This cutaway view of the engine to have a better view on the resin part

[ame]http://www.youtube.com/watch?v=ucrwefgA4uU[/ame]

Chris
 
A few links to explain :
It's all in dutch but lots of images.

The making of the siliconenmold

http://www.gti-duffel.be/forum/viewtopic.php?f=60&t=147&sid=2dd86feb60b0ded1b60c82f5b79b2112


Casting the resin upper cover of the LTD

http://www.gti-duffel.be/forum/viewtopic.php?f=60&t=148&sid=2dd86feb60b0ded1b60c82f5b79b2112


cutting the displacer cylinder from a long PVC tube using a lathe :

http://www.gti-duffel.be/forum/viewtopic.php?f=60&t=158&sid=2dd86feb60b0ded1b60c82f5b79b2112

Thanks for watching

Chris


 
Chriske,

Thank you for posting these. I have been thinking stirlings could only be made with metal. You and your students are really learning: That is, thinking "outside the box." It is so refreshing to see projects that follow the principles of design and construction rather than all copying an example or assembling kits.

Kudos.

--ShopShoe
 
Nice writeup. Chris.
Great experience for your students.
Thanks.
Gail in NM
 
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