Laser Alignment

Apr 17, 2017 Nigel 3

This started with a pack of lasers that had optics to create a cross-hair image. My original thought was to fit one of these in a holder in the chuck and then the cross-hair would [more…]

Cooling Fin Design

Apr 2, 2017 Nigel 0

The design of the cooling fins of an air cooled engine is critical to getting the heat out of the engine cylinder and for ensuring that there are no hot spots. Therefore, I’ve been looking [more…]

Lamp Post Engine

Apr 1, 2017 Nigel 3

How many hours do you spend browsing through the internet looking for inspiration for a new model? Lots of different steam engines and one in particular caught my eye Bodkin 2, what a lovely looking [more…]

5 Cylinder Rotary

Mar 31, 2017 Nigel 0

This engine took some years from start to finish, a number of those years were down to us moving house and me not locating it after the move. The engine is approximately 85mm in diameter [more…]

Warco ER25 Lathe Collet Chuck

Mar 19, 2017 Nigel 0

When you buy the collet chuck you have to buy a backplate for your particular lathe. In this case for a Warco WM240B. The backplate is made from cast iron and was pre-machined to fit [more…]

Machining Cast Iron

Mar 18, 2017 Nigel 0

There are a number of different grades of cast iron and within these there are a number of different qualities depending a lot on the casting method. Sand castings that are found a lot in [more…]

Cast Iron

Mar 18, 2017 Nigel 0

Cast iron tends to be brittle, except for malleable cast irons. With its low melting point, good fluidity, castability, excellent machinability and wear resistance, cast irons have become an engineering material with a wide range [more…]

Crankshaft

Feb 25, 2017 Nigel 0

A crankshaft machined from a solid piece of mild steel. This is quite a daunting thing to machine for the new model engineer and so I have described the steps I’ve taken in making this [more…]

Silver Steel Cutting Speeds

Feb 5, 2017 Nigel 0

The recommended cutting speed for silver steel is 15 to 25m/min Using this speed I’ve created the following table of cutting speeds: Diameter of material [mm] Spindle speed [rpm] Roughing Spindle speed [rpm] Finishing 3 [more…]