Stinger Hook - Backstage cart lip (one piece, strongest)
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What it holds: Stinger coils; electric dock, nylon M5 only

PRINT SETTINGS
  Filament:  PETG
  Walls:     5
  Infill:    35% gyroid
  Orientation: the files are already oriented for printing. Put them on the plate as they load;
               don't rotate them.

FILES AND SUPPORTS
  - clip_R_hook_stinger.stl  (supports: no)

HOW IT MOUNTS
  BACKSTAGE CART LIP (ONE PIECE, STRONGEST)
    The cart-lip slot is printed into the holder, so it is one piece and as strong as it gets.
    Hold it tilted, hook the slot over the upright lip on the edge of a Magliner / Backstage-style cart
    shelf, and rock it down until it sits flat against the side.

    Notes for this holder: One piece, strongest: native Magliner/Backstage 3.4 mm cart lip mount. nylon M5 thumbscrew tapped into the plastic (electric dock, no metal). Prints on its end, no supports.

HOW IT WORKS
  The everyday stinger hook. A tied 25 ft 12/3 hangs in the 56 mm clear opening, with fully rounded inside curves so jackets don't snag. The back plate bears flat on the cart side down to 50 mm below the deck. Rated about 5 kg. Full 50 ft stingers belong on a steel cart hook.
  Electric dock, no metal: instead of a brass insert it has a tap-drill hole for a nylon M5 thumbscrew (see Retention below).
  Grab: lift the coil off the tip.
  On the cart

  - Sticks out 80 mm from the cart side
  - Hangs 62 mm below the deck
  - Needs 62 mm of flat cart side below the lip for the back plate to bear on (check with a straightedge; the plate must sit flush with the lip's outer face)
  Retention: held by gravity unless you fit the M5 thumbscrew. This is an electric dock, so it has no metal by default: the hole on the shelf-side face is a 4.2 mm tap-drill hole running 14 mm through the mount into the slot. Run an M5 tap through it (by hand, slowly), then use a NYLON M5 x 20 thumbscrew, turned in until it nips the lip. Do not fit a brass insert or a steel screw on an electric cart. Your cart's lip must be at least 16 mm tall for the screw to land on it. Without the screw, it lifts straight off (about 27 mm of lift) and can slide along the lip.
  Fits: Backstage Equipment and Magliner-style carts with a 3.4 mm upright steel shelf lip. 3.7 mm slot (0.3 mm clearance) with a round end, and 0.5 mm chamfers at both slot ends so elephant's foot can't pinch it.

OTHER MOUNTS
  The same holder also comes ToughBuilt bar (one piece), Dock (swap between mounts), Mountless (desk, shelf, case or screw to a panel). Pick the mount on the site: https://cart-tools.sdos-placeholder.workers.dev/#r-hook-stinger

TEST THE FIT FIRST
  Carts, bars and tape rolls vary a little. Before a long print, print the small fit test from the
  Test pieces section of the site (or this part at low infill) and check it on your own gear.

Not affiliated with or endorsed by Magliner, Backstage Equipment, ToughBuilt, Milwaukee, Hollyland, Eartec, Sekonic, Inovativ, Matthews or Manfrotto. Brand names only say what a holder fits.
