A friend who recently acquired a CO2 laser cutter for his school recently sent me a message. “What is the difference between a laser that will cut metals and one that won’t?”. I thought this is a good question, as the answer will help with understanding how to work with many materials.
Tag:CAM
Making a Train Set: Part 1 – Design and Woodwork.
Recently I have been building a train set, I will blog the progress, in six parts, highlighting how I get certain things done.
I reckon my fan guard design is pretty damn neat. (Free Plans)
I needed some fan guards for my arcade machine and for a neat little entertainment centre hack. Playing around I made a fish-eye honey-comb screen that looked pretty good. The pattern has larger holes near the centre of the fan and smaller holes where it counts.
How to make coloured text in acrylic with spray paint.
Laser engraving text on acrylic / perspex does not create a lot of contrast. This leads to the subject of painting text on the acrylic. I have developed some useful methods of achieving this that I thought I would share.
Spice Rack Plans (Woodworking)
My Spice Rack plans and effect were quite solid. As people still remark on the unit, I will share the design. DXF included.
Quick Graphs to make PCB Track Width and Silkscreen Ratios easy.
Recently I had to make a series of circuit boards using Eagle Cad.
I spent a lot of time calculating track widths to make sure my circuit board could handle the current I was using.
Then I had to do more calculations for font ratios. so that that all lines were wide enough to work with the silk screening process.
Sick of this; I quickly used matlab to create a few charts so I could look up the answers quickly.
I thought I would share these charts and the matlab scripts, hope they are useful.