Warco ER25 Lathe Collet Chuck

March 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

March 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

March 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

February 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

February 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…]

Palm Dead Blow Hammer

February 1, 2017 Nigel 0

I was thinking about the idea of making a  dead blow hammer – really just an interest in the basic physics and then the design. I started by making the parts you can see in [more…]

Exhaust Silencer Design

January 29, 2017 Nigel 0

The exhaust system on an internal combustion engine may be used to reduce noise and/or increase power. A pressure tapping is also used on many exhaust systems to pressurise the fuel tank and hence allow [more…]

Inline Twin Glow Engine

January 16, 2017 Nigel 0

This engine was made in the summer of 1987. It has the cylinder liners, pistons and conrods from two OS 25FSR glow engines. The crankshaft was made in parts and the crankcase machined from a [more…]

1/12th Scale Globe

January 15, 2017 Nigel 0

The end result displayed at the moment in what I describe as the model cube. I must admit that having thought about making a 1/12th scale globe my first problem was either making or finding [more…]

Bog Oak Chair

January 2, 2017 Nigel 0

Some years ago I was given some pieces of bog oak, roughly 1″ x 1″ x 4″. I painted the ends with PVA glue and placed them in the eaves of my shed and forgot about them [more…]