Step 09.25 — Confirm the USB adapter stack and clip it¶
Step 25 of 36 · Chapter 09 — Electronics bay
Gather for this segment — steps 09.25–09.30 (~30 min)
Motion box
- nozzle probe shaft, 5 mm ×1
Electronics 2 box
- DIN Clip ×1
- LDO Nozzle Probe, collar pre-pressed
(verify on bench)×1 - Z endstop PCB (D2F switch board) ×1
Fasteners, Tools & Misc box
- M2×10 self-tapping (verify on bench) ×4
- M3×2 set screw ×1
- M3×25 SHCS ×2
- M3 T-nut ×2
The Nitehawk-SB V2 box
- Nitehawk grounding cable, long (verify on bench) ×1
Already on the bench
- the bagged USB adapter stack, three M3×10 SHCS and the partial cover
- the USB adapter assembly
- the nozzle probe assembly
Parts:
- the bagged USB adapter stack, three M3×10 SHCS and the partial cover · already on the bench
- DIN Clip ×1 · Electronics 2 box
- M2×10 self-tapping ×2 (verify on bench) · Fasteners, Tools & Misc box
- Nitehawk grounding cable, long ×1 (verify on bench) · the Nitehawk-SB V2 box
Do:
- Confirm the bagged stack: three M3×10 SHCS, and the partial cover.
- Fit a DIN clip to the base's back with the M2×10 self-tappers.
- Bolt the supplied grounding cable's ring terminal to the exposed mounting point.
Check
PCB captive, the 4-pin Micro-Fit 3.0 socket and USB connector both accessible, cover on, ring terminal on the one bare mounting point.
What you're looking at
The USB adapter is the bay-side end of the toolhead umbilical: 24 V goes in, and the toolhead cable comes out as a USB connection to the Pi. The V2 partial cover leaves one mounting screw bare on purpose, for the ESD ring terminal.
Caution
Rev D+ / LDO: the stack takes 3× M3×10 SHCS — LDO's Rev D Printed Parts Guide: "Use 3 M3x10 SHCS screws to attach the base, adapter PCB, and cover together." The M2×10 self-tappers are for the DIN clip only. If your stack has the V1 full cover, swap in usb_adapter_mount_partial_cover.stl rather than omitting the ground (survey §4.1 ⑤). src
Caution
Rev D+ / LDO: use the supplied grounding cable. LDO: "Be sure to use the supplied grounding cable since using larger O ring connectors may cause inadvertent shorting of the PCB boards."
Source: Nitehawk-SB V2 repo · LDO printed-parts guide (Rev D) · image usb_adapter_gnd.jpg
