The laser engraving did produce a bit of smoke. So I had to exhaust it away from my workshop. I found a 2.2 cubic meters per minute centrifugal fan that would be very suitable for exhausting the smoke away. I […] ↓ Read the rest of this entry…
All these while, I had been operating my diy movable gantry cnc machine as a milling machine. I knew that I could easily convert it to become a laser cnc machine, but somehow I had kept postponing it. Perhaps I […] ↓ Read the rest of this entry…
As the holder for my spindle could be removed so that I could replace it with a laser module holder, or a pen holder, I sometimes found that this arrangement could very often cause inaccuracy issues. This was because the […] ↓ Read the rest of this entry…
Today, we look back at how we have progressed with our cnc machines. I started to investigate how to control cnc movement using a floppy drive. The floppy drive of a computer already had a stepper motor for moving the […] ↓ Read the rest of this entry…
Sometimes I would come across situations when I would wish I had a protractor to measure angles in my projects. I had been using transparent plastic protractors all these while. They were cheap. Unfortunately, these were rather soft and could […] ↓ Read the rest of this entry…
I had been quite successful doing single depth of cut engraving for some time now. Now I was looking for new capabilities. I had previously cut some 2.5D graphics on wood or phenolic boards. It was during one of these […] ↓ Read the rest of this entry…
I had engraved many old CD’s with words and pictures with my cnc machines. Initially, I used to clamp the cd’s onto the waste board with the help of wooden clamps. I had to arrange the setup so as not […] ↓ Read the rest of this entry…
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…
I had been experiencing several incidents of lost steps in the movable gantry cnc machine and I had been going through all the root cause analyses to find out the cause(s). Apparently, there were a few causes for these and […] ↓ Read the rest of this entry…