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Looking good mate! Why not just add the extra relief to the pistons in the correct direction? I can't see any downside to having the side relief as well, most full size engines relieve the sides of the pistons to decrease friction.

The main thing I've used my little 10" shaper for is just flattening large surfaces

Wow! That before and after blasting pics of the valve cover lettering really show how much of a difference that process makes to the appearance of the parts. I am following along very closely as I'm currently part way through building a CNC router and have aspirations to use it to make some...

Great idea bonding the cylinder head together from 2 parts! Roy Amsbury's V8 used a built up cylinder head as well, though it's silver soldered brass, so it has been done before successfully :)

They're coming along really well!

Looks like you're off to a great start!

Haha don't stress, I got a good laugh out of it. Bit of a lurker here but I'm following your build with interest, it's all looking great!

That looks absolutely sensational! How does it sound?

That is a truly amazing idea, and so simple!

I bought my argon bottle from SpeedGas and they do refills for me :D no rental costs.

What a fantastic project. I'm eagerly awaiting each new installment, and learning lots just by seeing how you've made each part. Keep it up! Andrew

Malcolm Stride died, plans are no longer available except in back issues of model engineer.

I designed this engine up in some free time, but it's a completely theoretical design. No idea if it would work or not. If you want I can see if I still have the Solidworks files for it. The rest of the engine isn't great, but I was pretty happy with the modelling of that cylinder head...

I'll vote for the Blowfly as a great first locomotive. It has slip eccentric valve gear, the axle boxes ride in the frames, it's an 0-4-0. Many little touches to make it simpler to build.

What's an oil pan? That's a nice sump you made there :big:

Your welcome B :) I have tried welding aluminium... at first it didn't go very well but I watched a short DVD on the process which taught me a lot (12mm arc length. I was using around 5mm and it wasn't working well). I'm still pretty rubbish at it. It's great fun though, much more precise than...

The engine sprocket is inline with the swingarm pivot so there is no stress in the chain (in theory). It seems to work quite well. Heehee, that's not a MIG welder, its an AC/DC TIG welder. My new toy!

Hey everyone, just thought I'd give a little update to those who were following this project. I've pretty much completed the buggy. I've taken it apart and painted the frame. All that's left to do is to paint the suspension parts, reassemble, and then a couple of odd jobs like wiring... Here's...

That's a simply awesome engine. Is this your own design? It looks similar to the NE15S:

I also have a Douglas 10" Shaper ($600 ebay) and have to admit that I haven't really used it very much. It works perfectly, but I find it takes AGES to set up the table support perfectly square, and then to lower the table down ever so slightly onto the support so it's square to the ram's...