Side Ledge - Backstage cart lip (one piece, strongest)
======================================================

What it holds: Poles, levels, pipe laid across 2-3 in a row; 2 strap slots

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_A_standard.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 with the Magliner/cart lip slot (strongest). Optional M5 heat-set insert + M5 x 20 thumbscrew locks it to the lip.

HOW IT WORKS
  A side ledge that drops onto the shelf lip of a film cart. Run 2 or 3 in a row and lay poles, levels, pipe, a slider rail or a boom pole along them. The outer lip is 18 mm tall with a 3 mm return curling back toward the cart, so round things don't bounce out on a bumpy push. For anything bigger, run a 1 in (25 mm) strap through the slot in the outer lip and the slot in the floor beside the block. The outboard corners are chamfered 6 mm so they don't catch doorframes, and each lip end keeps a blunt 1.5 mm face instead of a chip-prone knife edge.
  Usable floor: about 48 x 65 mm flat (65 mm between block and lip), 65 mm along the cart.
  Numbers

  - Sticks out from the cart side: 80 mm
  - Hangs below the deck: 0 mm
  - Top above the deck: 42 mm
  - Flat cart side needed below the lip: none. It sits on the lip only, with no back plate
  Held by gravity unless you fit the M5 thumbscrew. The part drops over the lip and stays on by its own weight. For a moving cart, press an M5 short heat-set insert into the hole in the deck-side face and fit an M5 x 20 nylon-tipped thumbscrew. The screw clamps the cart lip against the outer wall, which stops lift-off, sliding along the lip and rattle. The screw sits 13 mm above the deck, so it only works if your cart's lip is at least 16 mm tall. Measure it first.
  Fits: Backstage Equipment and Magliner-style carts with a 3.4 mm upright steel shelf lip. The slot is 3.7 mm wide (0.3 mm clearance) with a round end and 0.5 mm chamfers at both slot ends.

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/#a-standard

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.
