brass etching

Brass Etching

November 27, 2020 Nigel 0

There are a few different ways to do brass etching, but having learnt how to do this with a really simple method I just had to share it. The real drive for this is to [more…]

bus stop enamel sign fixed to wall

Fixings for Enamel Signs

November 27, 2020 Nigel 0

Fixings for Enamel Signs that don’t have any holes through which you can fix them. This can be tricky as it is best to keep the sign original. So here is an idea for a [more…]

greenhouse polythene cracking

Brittle Greenhouse Polythene

November 21, 2020 Nigel 0

When I built my dome greenhouse earlier this year I took my time reading about coverings, so how did I end up with brittle greenhouse polythene? The greenhouse covering looked rather good when it was [more…]

belt length trigonometry

Belt Length Calculation

November 16, 2020 Nigel 0

I’m sure that if I look around I can find a belt length calculation tool, but that would spoil the fun of me making the calculation and then checking it is correct. Two circles of [more…]

spindle and motor arrangement

Engraver Spindle Sketch to Parts

November 14, 2020 Nigel 0

Working from an Engraver Spindle Sketch to Parts can be daunting. However, I very rarely work with more than a few sketches and key critical dimensions. This is all about improving the spindle of the [more…]

Bouland Motors 1/3rd scale cosworth DFV

1/3rd Scale Cosworth DFV

November 12, 2020 Nigel 0

A 1/3rd Scale Cosworth DFV model engine by Bouland Motors It was December 2015 and Marcel Bouland, scale model engine enthusiast and collector decided to develop a fully working 1:3 scale Cosworth DFV engine. Many [more…]

linear brass bearings fitted to Genmitsu z-axis

Linear Bearings

November 12, 2020 Nigel 2

I think this post should actually be titled “cheap linear bearings” as I don’t think all are equal. However, the bearings found in low end CNC machines are effectively parts from the inkjet printer industry. [more…]

marking workpiece and jaw in 3 jaw chuck

Reducing Runout of a 3 Jaw

November 7, 2020 Nigel 0

There are a few ways of Reducing Runout of a 3 jaw chuck. One way is to fit a better quality 3 jaw chuck that fundamentally has less runout. This was what I did when [more…]

sketch for a cnc spindle

CNC Spindle Idea

November 6, 2020 Nigel 0

I have a CNC spindle idea, a simple modification to the direct drive 500 series motor. To be precise this is a spindle for the Sainsmart Genmitsu Pro-3018. The spindle will then be belt driven [more…]

genmitsu cnc in case

Sainsmart Genmitsu Z-axis

November 2, 2020 Nigel 0

I bought this small CNC machine to engrave the smokebox door on my miniature traction engine, but the Sainsmart Genmitsu Z-axis accuracy is poor. Poor in a number of ways, but primarily down to the [more…]