For the movable gantry cnc machine, it was rather easy to notice and to adjust the X and Y axes so that they become perpendicular to each other. The movements of the tool would be rather large and would be […] ↓ Read the rest of this entry…
Recently, I was tinkering around with an old air conditioning circuit board which was used to control a BLDC (Brushless Direct Current) motor for the fan when I found that tracing the circuits proved to be a bit more complicated […] ↓ Read the rest of this entry…
With all the testing successful, it’s time to consolidate and improve on the overall machine. What I wanted to do was wire management. My wires had been dangling around, and were made up of all sorts of wires. In order […] ↓ Read the rest of this entry…
During my experimentation, I somehow made costly mistake(s) and found that the parallel port installed at my computer was not working properly after one initial successful testing. Subsequent testing were failures. I did not know why and when it occurred. […] ↓ Read the rest of this entry…