2. Rail & Spring Nut

Goal: Mount your add-on hardware to the robot's top rail using spring nuts.

Prerequisites: Step 1 Specifications Check is complete — the add-on is within payload and interface limits.

What You Need

Item	Detail
Spring nuts	MISUMI SHNTP5-5 (KR · US)
Bolts	M5 bolts that match your add-on's mounting holes
Rigid rod	≤ 4 mm diameter, for removal

The robot top uses rails for mounting optional hardware (PTZ cameras, LiDAR, custom brackets). Spring nuts inserted into the rail slot give you threaded anchor points for M5 bolts.

Insert a Spring Nut

1. Insert at an angle — slide the spring nut diagonally into the rail slot so it enters the internal channel.
2. Press the protruding section — a portion of the nut may sit proud of the slot; press it down so the nut seats fully.
3. Align with the rail — adjust the nut so it is aligned with the slot and can slide freely along the rail.

Step 1 — diagonal insert

Step 2 — press the protruding section

Step 3 — align with the slot

Slide the nut to the position where your add-on bracket should sit, then tighten the M5 bolt to fix the bracket.

Remove a Spring Nut

⚠

CAUTION

Tool diameter: use a rigid rod no larger than 4 mm in diameter. A thicker tool can damage the nut or mar the rail slot.

1. Insert a rod — pass a rigid rod (≤ 4 mm) through the hole in the spring nut.
2. Push against one wall — push the nut against one inner wall of the rail slot.
3. Twist and lift — while holding it against that wall, twist and lift toward the opposite side so the nut clears the rail profile.
4. Remove — withdraw the nut from the slot.

Step 1 — rod through the hole

Step 2 — push to one wall

Step 3 — twist and lift

Step 4 — remove

Next Step

Hardware is mounted. Now register the add-on's mass and offset in the GUI:

→ 3. Payload Setting