Low Cradle / Cable Saddle - Backstage cart lip (one piece, strongest)
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What it holds: Poles, levels, pipe, tied stinger laid across 2-3 in a row; 25 mm 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_J_drop40.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 native Magliner / Backstage cart-lip mount (the shipped part). Prints on its end, no supports. Strap slots for straps up to 25 mm.

HOW IT WORKS
  A cradle that hangs below the shelf edge, so a coil or a long item rides low on the cart side and out of the shelf's way. Run 2-3 in a row along the cart and lay long things across them: poles, levels, pipe, or a tied stinger laid flat lengthwise (up to about 60 mm thick). Round coils don't fit the 59 mm opening; hang those on the Stinger Hook or the Wide Saddle Hook (Hooks collection).

  - Channel 65 mm wide and 50 mm from floor to lip top, along 65 mm of cart edge
  - A 6 mm return at the lip top (59 mm opening) stops round things bouncing out on a bumpy push
  - Strap it for anything you don't want to lose: straps up to 25 mm (1 in) wide go through the 27.5 x 4 mm slot in the outer lip, over the load, through the back-wall slot and round underneath. Thread the strap BEFORE you hang the cradle: it runs behind the back plate, in a 3 mm deep groove so it never lifts the plate off the cart (2 mm deep under the floor and up the outside)
  - The ends are open on purpose, so long items span several cradles
  - The back face is relieved 3 mm for the first 12 mm below the deck, to clear a rolled shelf edge
  Grab: lift the coil straight up and out. With a strap, one pull on the tab.
  On the cart

  - Sticks out 79 mm from the cart side
  - Hangs 47 mm below the deck
  - Needs 47 mm of flat cart side below the lip for the back plate to bear on (the top 12 mm can be a rolled edge) (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. Melt a short M5 heat-set insert (6.4 mm hole, 9 mm deep) into the hole on the shelf-side face, then run a nylon-tipped M5 x 20 thumbscrew in until it nips the lip. That stops the part lifting off when something snags it, sliding along the lip, and rattling. 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/#j-drop40

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.
