Sanding Blocks

October 12, 2019 Nigel 0

An article about sanding blocks feels like nonsense until you realise just how useful they are. The cork block is the starting point and one of the must have items in any toolbox. The next [more…]

Abrasive, Diamond, Emery and Sandpaper

October 12, 2019 Nigel 0

Abrasive, Diamond, Emery and Sandpaper. There are lots of different types and forms of abrasives that we use in engineering and model engineering. A very hard, brittle, heat-resistant substance that is used to grind the [more…]

Engine Capacity

May 26, 2019 Nigel 0

Engine Capacity = Swept Volume = Engine Displacement We use all of these terms interchangeably and they all mean the same thing When we calculate the capacity of an engine it is simply the bore, [more…]

Engine Mount Brackets

May 6, 2019 Nigel 0

When we’re mounting an engine either on isolating mounts or solid into a structure it is really important to consider the design of the brackets. If these brackets have any low frequency stiffness concerns then [more…]

Metric or Imperial Threads

April 20, 2019 Nigel 0

Someone commented to me the other day whilst walking around a car museum in the UK that they couldn’t cope with all of the different imperial threads and the array of spanners that you need [more…]

Radiused Connecting Rods

February 28, 2019 Nigel 0

The formal way to radius the end of a connecting rod is to use a rotary table and an end mill. If you don’t have a rotary table you can make hardened filing buttons and [more…]

Accurately Drilling a Hole

February 28, 2019 Nigel 0

Even in a milling machine with all axes, apart from the quill movement, locked I start with a centre drill. Drill gently to ensure that the centre is perfectly aligned and drill into the material [more…]

Aerodynamic Noise

January 10, 2019 Nigel 0

When we flow gas through a pipe or over a surface (fluid dynamics) we generate noise and sometimes vibration. The noise that is produced can be extreme if there is a feedback system between the [more…]

Centering and Aligning

December 24, 2018 Nigel 0

These tappet covers were rather damaged after a number of years of use and what looks like some rough treatment – looked like a pair of mole grips had been used in the past to [more…]

Flow Noise

November 18, 2018 Nigel 0

A term generally used to describe aerodynamic noise produced when a gas flows within a duct or when the gas exits the duct. This is a typical problem observed in the exhaust systems of internal [more…]