grabowski face699a28 Optical QC: EtherCAT control plan with geizhals.de prices ...

User, 19 Oct 2026: plan the current EtherCAT setup, keep the 100 W servo,
check prices on geizhals.de.

- New docs/equipment/inline-qc-control-plan.md: decisions, bus layout
  (drives at the end of the line because the A6-200EC takes control
  power from the main supply), I/O list for EL1809/EL2809/EL3152/EL5101
  and the drive touch probe, PDO and DC notes from the A6-EC manual,
  geizhals.de price table (EUR 1,891.60 to 2,104.39 + USD 246.58 for the
  servo kits, THB 80k to 88k), NixOS/EtherCrab software, safety circuit
  (PNOZ s3, two contactors, dump valve), bench test with pass marks
  (parts about THB 64k, all reused), build order, spares, open points.
- EL3102 replaced by EL3152: the optoNCDT 1420 output is 4 to 20 mA.
- Spindle encoder index goes to an EL5101 instead of the drive touch
  probe; encoder 2,000 to 2,500 pulses.
- BOM: control lines split per part with geizhals.de prices (+30% high
  end for shipping and Thai duty/VAT, estimate); total USD 16,912 to
  33,061 (THB 0.56M to 1.09M). Doc, render caption and fleet calculator
  text now say USD 17k to 33k.
- README links the plan.

2026-10-19 10:43:59 +07:00

1.5 MiB

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