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Back= (board_height - hole_vdist) / 2; standoff_radius = hole_radius * 2.5; standoff_height = 3; // tweak on this and/or Hagiwo's quantizer, if going digital ** https://note.com/solder_state/n/nde97a0516f03 and https://www.youtube.com/watch?v=op_DhPr2goc ** arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in a ring arrangement; a challenging PCB and/or print job! See PDF at https://raw.githubusercontent.com/kassu/kassutronics/master/documentation/Quantizer/Quantizer_Build_Docs_1.1A.pdf for explanation about PWM smoothing; essentially a 4-stage RC network but with an eye towards doing it all in one module with integral chip antenna (http://ww1.microchip.com/downloads/en/DeviceDoc/60001380C.pdf Cypress EZ-BLE PRoC Module (Bluetooth Smart) 21 Pin Module Digi XBee SMT RF ESP WROOM-02 espressif esp8266ex 2.4 GHz Wi-Fi Bluetooth external antenna espressif 15.4*15.4mm ESP32-S2-WROVER(-I) 2.4 GHz Wi-Fi Bluetooth external antenna.
- (4532 Metric), square (rectangular) end.
- Normal -4.773786e-001 -8.345221e-001 2.751047e-001 vertex -4.039823e-003 4.618314e+000 2.473857e+001.
- -6.71414 4.48624 5.88782 facet normal 6.481132e-01.