Model Scale and Sizes

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Model scale and sizes represent a copy of an object that is larger or smaller than the actual size of the object. The scale is the ratio of the model to the full-size object. A look across our gallery pages and you will see a wide range of scales being used. If the scale is … Read more

Cast Iron Piston Rings

piston rings

Some years ago I made cast iron piston rings, however, in the nearly 40 years since I have completely forgotten how. So, I’m reading lots of forums, references and articles on making cast iron piston rings. Whilst doing this I thought it was worth writing an article on the subject. I have listed references where … Read more

Camera Threads

polar duck mini tripod

There are a number of camera threads used for tripod mounts, lens mounts and a shutter release. C-Mount CCD camera lens connector thread 1″-32UN2A with a standard focal distance of 17.526mm. A C-mount lenses can be used in CS-mount configurations with a 5mm adapter. CS-Mount CCD camera lens connector thread 1″-32UN2A with a standard focal … Read more

How to Calibrate Your CNC Machine


A Step-by-Step Guide by Peter Jacobs at How to calibrate your CNC machine is one of the most crucial processes to maintain design accuracy, tool precision, and repeatability. It helps in maintaining the highest standards of quality of the manufactured product while also ensuring that the CNC router delivers optimum performance without causing any … Read more

Plane Angle

Plane Angles

The plane angle between two radii of a circle which cut off on the circumference an arc equal in length to the radius. The secondary SI unit for the plane angle is the radian. The inclination of one line to another. One complete revolution equals 360° (degrees) or 2π radians. 1 degree (°) = π/180 … Read more

Enameling onto Steel

enamel sign

Enameling onto steel appears to be a sensible idea based on the fact that antique enamel signs were on steel. How hard can it be? The first task was to make a mask. I did this using the Sainsmart Genmitsu 3018-pro. This was designed using Carbide 3D and machined using a 1.2mm diameter slot drill. … Read more

Frequency, Wavelength and Speed


Understanding frequency, wavelength and speed is fundamental to everything around us. From noise and vibration, chatter on a lathe tool to the light we experience from objects. Waves move energy from one place to another without any accompanying matter. Sound waves, ocean waves and electromagnetic waves are some of the examples; other, more complicated types … Read more

Squaring Stock

squaring stock material

This article on squaring stock is from Alan at Woody’s Workshop. The process is primarily designed to square a piece of stock ready for the cnc. However, it could be used for general machining as well. Assume the stock can be represented by the following shape with each side numbered as shown. The numbering is … Read more