I need plans for a simple engine

[TQA222]

I will have a 7 x 12 mini lathe and need a turning exercise to get me started. I did some hobby work in a well equipped college workshop some 35 years ago so am not a total beginner. I was attracted by the Stuart V twin wobbler and may well have a go at one some time but it seems to require very little turning and some really complicated set up work to machine the frame square.

So I am looking for plans or preferably a kit with everything I need to build a simple engine. It needs to be mostly lathe work. It could be an IC engine or a steam engine but I am open to suggestions. I think I would prefer bar stock to castings as I have had some experience with castings that had parts that were hard, in fact extraordinarily hard.

 

[markba633csi]

A compressed air engine might be fairly simple, just need to figure out how you want to arrange the valving/porting
Plenty of ideas on the internet

 

[BaronJ]

Try this link. lots to go at, from simple to complicated !

http://john-tom.com/

 

[mikey]

Also look here: http://www.machinistblog.com/

 

[Technical Ted]

I'm actually making this one for my grandson now. Pretty simple, but a fun project. You can also get a drawing for this as well from Toly.

Have fun!
Ted

 

[westsailpat]

These guys pretty much have it all . https://www.pmmodelengines.com/
they also sell their stuff on the Bay . https://www.ebay.com/sch/minicastings*com/m.html?item=131300161471&rt=nc&_trksid=p2047675.l2562
You can even build your own line shaft machine shop ! And then make the steam engine to power it .

 

[homebrewed]

Jan Ridders has a number of interesting engine designs. I haven't made any of his so can't say what the difficulty level is.

 

[TQA222]

Jan Ridders has a number of interesting engine designs. I haven't made any of his so can't say what the difficulty level is.

His flame eater looks interesting and is not something I had seen before.

 

[MozamPete]

Elmer’s ‘fancy’ engine is predominatly lathe work with only a couple of bits where flats have to be milled.

 

[petertha]

Here are 2 good forums to check out with specific sub-forums & word search to help you zero in. There are model engineering sites, but these should keep you occupied for a few years
https://www.homemodelenginemachinist.com/
http://www.modelenginemaker.com/index.php