The most recent 25 photos from my blog

The dial as an animation (1 revolution = 12 hours) from Precision vs Accuracy: A Clock

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The clock, in all its glory from Precision vs Accuracy: A Clock

Two DACs to give greater dynamic range from GPSDO: An attempt that is too simple

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The two GPS receivers on my window sill from keyestudio gps shield as frequency counter

10MHz OCXO (top), 10MHz GPS-referenced (bottom) from Fun with frequency

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My Grandfather's Hamilton Railroad Watch, repaired by Chris Radek from Watch Repairs

The object, visualized in meshlab with 'xray' shader from occmodel as Python alternative to openscad

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The new cable chain from MP Select Mini: Heated Bed Repair

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truetype-tracer "linuxcnc" in vector outline from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Sierpinski gasket in paper, 3 levels, triangles fully cut out in vector mode. Looks like I could have achieved 4 levels. Not sure why bottom left triangle is stunted, possibly due to being at end of travel for the axis, possibly due to backlash. from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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First recognizable dithered image test from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Further tests. Bottom row: PWM, partial incorrect velocity variation, velocity variation, 1BPP dithering. Top row: 1BPP dithering at two different feed rates from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Test of PWM laser control (unsuccessful) from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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First burn with LinuxCNC (all following burns done with LinuxCNC) from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Connecting to LinuxCNC from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Test with GRBL firmware from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Test with GRBL firmware from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Control board close-up. All parts are knock-offs where possible. from NEJE "ROSH" 300mW laser engraver with LinuxCNC

filled text test, GRBL firmware, stray marks due to partially running program again after losing home location from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Unsuccessful image test, GRBL firmware. I'm still unsure of the reason for the vertical lines. from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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test from truetype-tracer, GRBL firmware from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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The laser diode does not fit in the heatsink properly, meaning the heatsink is almost entirely ineffective from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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On cardboard, varying speeds does give varying grayscale from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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The machine itself from NEJE "ROSH" 300mW laser engraver with LinuxCNC

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Burning some lines ("1" came pre-burned on the cardboard) from NEJE "ROSH" 300mW laser engraver with LinuxCNC