Corrections Needed for Marble Run
The marble run is working rather well, but now I’ve been using it for some time I’ve realised there are some issues. The trouble is I keep forgetting the issues and so I thought I [more…]
Month: February 2020
Engine Ignition System
When we talk about the engine ignition system there are two fundamental types: compression ignition spark ignition. This is the system for igniting an fuel-air mixture that has been compressed in the cylinder by the [more…]
Model Engineering SEO
What do I mean by Model Engineering SEO? SEO is search engine optimization, model engineering is a hobby that feels very vibrant, but the view is it is dying out. Let’s start with the perhaps [more…]
Lead Acid Battery
The Lead Acid Battery is a battery with electrodes of lead oxide and metallic lead that are separated by an electrolyte of sulphuric acid. The overall reaction is: PbO2 + Pb + 2H2SO4 <=> 2PbSO4 [more…]
Nickel Metal Hydride Battery
The battery has a nickel-hydroxide cathode, a metal hydride (a variety of metal alloys are used) anode, and aqueous potassium hydroxide electrolyte. This is a rechargeable battery chemistry that has been superseded by lithium ion, [more…]
Lithium Ion Battery
In a rechargeable lithium ion battery lithium ions move from the negative electrode to the positive electrode during discharge, and back when charging. The cathode is a lithium transition metal oxide, eg manganese or cobalt [more…]
Steam Boiler
A device for generating steam for power, processing, or heating purposes or for producing hot water for heating purposes or hot water supply. I’ve included the firebox within the overall steam boiler as it’s difficult [more…]
Miniature Traction Engine Plan & Kit
I’ve gradually been drawing up the plans and making parts and so I thought I would pull it all together for a photograph and get a status of the Miniature Traction Engine Plan & Kit. [more…]