Customise your Case with Annodising
Published: 13th April 2006 | Source: Overclock3D |Requirements
*Sulphuric acid (battery acid is fine)-$2/litre from a battery wholesaler;
*Sodium Hydroxide (Drain cleaner)-$6 from your local supermarket:
*Sheet lead-$7/metre available from most hardware stores:
*12V DC power supply (8A battery charger)-$40 from your local auto stockist;
*Anodising dye- free samples should be available from your local anodiser;
*Assorted nuts, bolts, washers and 30A hook-up wire; and
*some thin Aluminium wire-MIG welding wire is perfect.
* Always connect up to the annodising tank before turning on the power supply, to prevent sparking;
* Safety googles, rubber gloves and long sleeves are a must (we are dealing with acid here people, and splashing is a risk);
* No smoking, naked flames or sparks (Hydrogen is a highly explosive gas given off during the process); and
* Plenty of ventilation.
* It is advisable when working with any form of chemical to obtain M.S.D.S (Material Safety Data Sheets), these should be freely available from the manufacturer, via the net or the reseller. These will help you understand and assess any heath risks that the product/s may have, and provide first aid options if the situation should arise.
Step 1: Preparing the container
Step one is to prepare the container-turning it into an effective cathode. It is important to note that any metal immersed in the acisd should only consist of lead or aluminium. I would suggest using cathodes, to lessen the volume of aluminium sulphate being released into the acid solution. Cut the sheet lead into shape, drill 3/16" holes through the container and lead and bolt them together with the nuts on the outside so they can be used as the power connectors.