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…]

Tapers

January 1, 2018 Nigel 0

Jacobs Taper The Jacobs Taper (abbreviated JT eg JT0 or JT3) is commonly used to secure drill press chucks to an arbor. Taper Large End Small End Length Taper/ Foot Taper/ Inch 1/2 Included Angle [more…]

Twist Drill Basics

November 27, 2017 Nigel 0

There are a number of different forms of twist drill, different base metals, different coatings and an even larger array of ways in which you should sharpen your drill bits. This article has been abbreviated [more…]