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No I found the design on this forum. It's called the stirling '60' and it was designed by J. Jonkman. It has an 18mm (.708") stroke.

I spoke too soon about the drag... I replaced the pin and that definitely helped, but there is still some drag and it's coming from the displacer. It's a possibility that when it is fully extended the weight of it is putting a little pressure on the bushing and creating a slight drag. I...

I'm trying this from my phone, so hopefully they attach.

I have to admit it is reassuring to see there's s little more to these then throwing them together and they run perfect. I found out what is causing the slight drag! I noticed from J.J.s pictures that it looked like he slightly belled the end of the pin that holds the arms to the crank to...

Thanks for the information! I'm glad I've been heading in the right direction as I've spent the last couple of days trying to get it to turn as smooth as possible. I removed the pin that connects the piston to the rocker arm, and then lit the candle. As I spin the flywheel the piston moves...

Hello everyone! I've been reading this forum for awhile now, but this is my first post. I decided to attempt to make J Jonkmans 60 Sterling engine that I found on this site. It's the first engine I've made, and I'm having problems getting it to run. I was wondering if you guys had any...