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0. harnesses

💬 whenever you need, check out the exploded view for orientation;

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In this first step, we will prepare several parts that will be used through all the assembly, interacting with multiple subgroups.

hall sensor breakout

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  1. if the breakout has a male header, remove it first with care;
  2. solder a 3x pin female 2.54mm header to the breakout’s back face;
  3. fold hall terminals by 90° at approximately 7mm from the board, making sure the sensor is perpendicular to the breakout;

OLED display + harness

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  1. if the breakout has a male/female header, remove it first with care;
  2. solder a 4x vias flat cable directly to the breakout (there is no space for a header when assembled);
  3. OBSERVE THE WIRING: in this specific display model, the VCC and GND needs to be switched;
  4. crimp 4x female 2.54mm connectors;
  5. as in the above photo point of view, the vias must be: SDA, SCL, VCC, GND.
  6. place a 4x plastic case (nevermind the 5x connector case, I didn’t have 4x available);

NEMA harness

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  1. cut the original 4 vias stepper cable to use the extremity that connects to the motor;
  2. crimp 4x female 2.54mm connectors;
  3. OBSERVE THE WIRING: the inner wires should be switched; ;
  4. place a 4x plastic case (nevermind the 5x connector case, I didn’t have 4x available);

LEDs + harnesses

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  1. cut the terminals of the two DIP LEDs;
  2. solder each LED to a 2 vias flat cable
  3. I recommend to use individual thermo retractable sleeves for each terminal to avoid short circuits
  4. do not crimp the connectors yet, we will need to pass the cables before that.