Making Brass 8BA Bolts for Valve Gear Motion on the Emco Unimat 3 Lathe

My Emco Unimat 3 lathe was repowered with a 1/3hp Bench drill back in 2005 as a cost effective solution, it was the cheapest bench drill. I am replacing the brass screws in the Stephenson's valve gear with bolts so that there is a plain shank for a bearing instead of a screw thread. The chassis air-test isn't far away, I just need to make the inlet manifold to connect both cylinders 👍

[@RB-yq7qv]

Hi Dave. Well now I know what to do when my little motor takes a long drop. Loved it keep up the great work.

[@joatmonuk]

Nice idea, I need to come up with a temporary way to make pulleys for my lathe, Minilor TR1. The headstock spindle is D shaped so am struggling to buy something close.

[@union310]

Whenever leaving a shoulder on a homemade bolt I make a sleeve to go over the plain portion so the thread is the right length.
Personally I would have case hardened the valve gear and used steel bolts.

[@NigelMarston]

I also have a Unimat, and have to pad-out the underside of the cutting tools similarly to the way I think yours is. I bought it second hand so I've no idea why this is - whether the tools are the incorrect ones for the lathe or some other reason
Otherwise, useful little machine

[@GardenRailway]

It's quite normal. As soon as one starts sharpening the tools, material is lost and they will need packing to centre height. They are good machines

[@alejandrozalaquettpeillard]

This could be an useful addition, but do not look very tide with that very long belt….and that curved tin …. Really looks poor….