Dr. TõnisNov 10, 20191 minUSB charger with a timerIt is a USB charger that turn complacently off after 3.5 hours. After one presses the power button (the red one) a relay is turned ON and...
Dr. TõnisNov 10, 20191 minMagic WandA simple 3d printed Magic Wand. The images are not very good, nevertheless the school children found it funny.
Dr. TõnisOct 20, 20191 minCompact (+/-V) Rectangular Pulse GeneratorFor a small project, I needed a rectangular pulse generator that could generate positive and negative voltage pulses. These...
Dr. TõnisOct 20, 20191 minRGB LED matrixI was planning to build a 8x8x8 RGB LED matrix, however due to several complications only the half was finished. The frame is 3d printed...
Dr. TõnisOct 4, 20192 min3d Pritner (X, Y, Z) Automatic Calibration (1)At the moment the FDM 3d printing industry is moving towards 2 print head system, or it is already there. The main issue with this...