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Primarily I'll be making small engines, though I'll probably start with much more simple stuff. It would also be really useful to be able to make any odd bolt or nut that I need. A mill is a planned future addition, but for now I have a drill press with an X-Y vise.

Thanks for the advice. I know HF makes money selling equipment where you get what you pay for: not a lot. But A used South Bend would cost, what, $2000 at least? And then I have to pay to haul the thing either in shipping or gas. The HF lathe is $600, I can pick it up 10 minutes from my house...

That's actually great! I love objective measurements, thanks! And thanks to everyone else in the thread. I'm going to mull it over some more.

I'm getting ready to purchase my first lathe (probably a Horror Fright 7x12), and something just occurred to me: I live in an apartment. Am I going to bother my neighbors by running a mini lathe on a wall that's opposite and ~15 feet from the one I share with them?

Here's a question for you since you seem to know what you're talking about: What would my odds be applying to a local machine shop? My only relevant experience and education is being able to read technical drawings, but I'm more familiar with the machines and their operation than the average...

Does anyone know where I could find some technical drawings of the Cox .049 Surestart: https://coxengines.ca/cox-.049-surestart-engine-die-cast.html Mainly I want to know some dimensions of the crankcase, crankshaft, and connecting rod. I want to make a crankcase for a v-twin Cox.

What about something like this? I moved the transfer ports to the sides (90 degrees from the exhaust ports), and added a boost port to 180 degrees from the exhaust port that opens 10 degrees before the transfer ports.

Hi all, I posted here a few weeks back on how the port timing on my (future) 2-stroke SI engine should look. I took some advice from the comments and switched to closer to a loop scavenging approach, and also simplified the machining. My main question is still how my port timing looks. The...

I mean the kind used for rod/main bearings in engines. My first thought is a piece of tube is turned to inner and outer dimensions, then cut in half with a saw. But then it's no longer perfectly circular because you're missing the tiny bit (thickness of the saw blade) from the center, so you...

Which one of those is QUB?

Thanks for the advice. I remember seeing the acronym QUB somewhere but I can't find anything that really says what it is. Is it a port arrangement, or a combustion chamber shape?

Thanks Jef! I definitely appreciate the input from an actual running engine.

I've decided that I want my first project to be a basic 2-stroke. Nothing fancy, just a single cylinder spark-ignition 2-stroke. I'd be elated just to get it to run. So I'm currently deciding on placement of the transfer and exhaust ports. I know there's a lot left (head, entire carburetor...

Hi, I'm just introducing myself. I've been browsing this forum for a while now and finally think I should join in. I'm a senior at a university. My major isn't very relevant to machining or anything like that, but I do love designing things in Solidworks. I've designed a few small air-powered...