Archive for the ‘Mechatronics’ Category

3D PRINTING (PART 16)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 This is a short review on printing all sorts of things in 3D. So far, I use my printer at least twice a week; one printing session may consist in one or multiple iterations. Since the beginning (check this post), many rolls of ABS and PLA have been melt and […]

Blog of the day

Amazing, impressive ! “the Cave Pearl Project” is, in my opinion, a major contributor to the open community: “The Cave Pearl Project was co-founded by Edward Mallon and Patricia Beddows: two people who are passionate about understanding caves and protecting karst aquifers. They have developed a data logging platform from inexpensive pre-made breakout boards, and […]

TASCAM Sound Recorder (Part 5)

Part 1, 2, 3, 4, 5 As a professional equipment, the TASCAM DR40-X recorder features XLR inputs. These are in fact combo inputs which are compatible with standard XLR connectors and 6.35 mm jack connectors . More important than the hardware, the electronics behind the connectors are very important. Most audio devices rely on unbalanced […]

PCBs (Part 3)

Part 1, 2, 3, 4 Once we have our gerber files ready, it is time for “printing” the PCB. For a long time (and a long time ago) I used single sided coated copper Bakelite boards. Then I would copy the circuitĀ  on copper using a special permanent ink pen (in negative) and immerse the […]

Metal detector (Part 1)

“Dear cousin, I lost my keys in the middle of the meadows, would you please make a metal detector for me ? Urgent !“ This is really how this project started ! More or less, as I have in mind the design of anĀ Earth’s Field Nuclear Magnetic Resonance spectrometer which features magnetic fields sensors on […]