Milling Cutters

August 12, 2018 Nigel 0

End Mill A milling cutter that is used mainly to machine on the side of the cutter and so used to profile a part. End mills do not tend to have a clearance cutting edge [more…]

Propagation of Sound

July 29, 2018 Nigel 0

At distances large compared to the size of the source, sound intensity diminishes according to the inverse square law. This is relatively simple to reliably calculate, provided the source is small and outdoors where no [more…]

Lathe Tools

July 22, 2018 Nigel 0

The tool that is held in a toolpost on the lathe cross-slide and which is feed into the rotating workpiece to machine it to size. Lathe tools are made from high speed steel (HSS), Tungsten [more…]

Belt Drives

July 15, 2018 Nigel 0

There are a number of ways to transmit power between two shafts, often to enable speed reduction and torque increase, but one of the easiest ways is to use a form of belt drive. They [more…]

Reduce any Overhangs

July 1, 2018 Nigel 0

One key parameter with regards to any tools is to reduce the overhang and so reduce the chance of chatter or even worse parts and tools breaking. The image shows a simple change in the [more…]

Slider Crank Linkage

May 6, 2018 Nigel 0

The slider crank is common in steam engine design as it removes the side forces from the piston and from the connecting rod that is sealed by the gland as it passes into the cylinder. [more…]

Workshop Calculator

March 10, 2018 Nigel 0

I often create a simple calculation on an excel spreadsheet, this allows me to check the numbers, compare results etc and I find this really useful. Therefore, I thought it was about time I share [more…]

Engine Bore and Stroke

March 4, 2018 Nigel 0

The bore and stroke of the piston sets the swept volume. Swept volume[cc] = stroke[mm] x p x Bore[mm]2 / 4000 p = 3.14159 Calculator is available to download here. The graph to the right [more…]