Low Bin 60 - Backstage cart lip (one piece, strongest)
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What it holds: Heavy small items low; 65 x 57 inside, 70 deep, drain

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_K_drop60.stl  (supports: yes)

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 upright, build-plate supports under the inner flange.

HOW IT WORKS
  A closed bin that hangs below the shelf edge, so the weight sits low on the cart side instead of up on the shelf. End walls keep things in on a ramp, and a 6 mm drain lets rain out.

  - Inside 65 x 57 mm, 70 mm deep from floor to rim
  - Good for gloves, zip ties, a handful of C-47s, cube taps, AA/9V batteries, chalk and small hardware
  - The back face is relieved 3 mm for the first 12 mm below the deck, to clear a rolled shelf edge; the wall is thickened inside the bin there (an 11 mm band with sloped ends) so it is still 8 mm thick where the load bends it
  - It prints upright, so that band is loaded across the layer lines: print it with 6 walls, and test-hang it with 3 kg and a firm bump before trusting it with a full load
  Grab: reach in from the top; the rim sits just 10 mm above the deck, so nothing sticks up to catch in a doorway.
  On the cart

  - Sticks out 81 mm from the cart side
  - Hangs 67 mm below the deck
  - Needs 67 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/#k-drop60

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.
