Slate Holster (acrylic slate) - Backstage cart lip (one piece, strongest)
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What it holds: Full-size slate up to 16 mm thick

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_DA_slate_holster_16.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 block (the shipped part). Optional M5 heat-set insert + M5 thumbscrew lip clamp. Prints upside down (rims + block top on the bed), no supports.

HOW IT WORKS
  A one-piece slate holster for an acrylic slate / clapperboard. The board drops into two U cradles at fixed spacing (180 mm overall) and the sticks ride above. Pull it straight up with one hand. Best on the top shelf or the cart end.
  Fits: Backstage Equipment and Magliner-style carts with a 3.4 mm upright shelf lip at least 16 mm tall. The part drops onto the lip through a 3.7 mm slot (0.3 mm clearance), 26.6 mm deep with a round end, with 0.5 mm chamfers at both slot ends.
  16 mm wide channel, 110 mm deep to where the board rests, with a 45 degree V floor that centres the board and a 5 mm drain in each cradle. Cradles are 40 mm long and open between them. Between the two cradles the plate only reaches 45 mm down. Full-size slates only (board wider than 200 mm, so it spans both cradles), not insert slates: a 6 x 5 in insert board drops between the cradles. The outer ends are open on purpose, because a full-size board (about 250-300 mm) overhangs both ends; nothing stops it sliding along the channel, so on a steep ramp or a long rough push lay the slate in the cart instead. Measure your slate's board thickness (without the sticks) first. Size 47 x 180 x 123 mm.
  On the cart: sticks out 29 mm from the cart side, hangs 81 mm below the deck, and needs a flat cart side 76 mm deep below the lip for the back plate to bear on.
  Retention: held by gravity unless you fit the M5 thumbscrew. Press an M5 short heat-set insert into the two holes on the shelf-side face (6.4 mm x 9 mm deep) and use a nylon-tipped M5 thumbscrew: it clamps the lip against the outer wall, so the part cannot lift off on a bump, slide along the lip or rattle.

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/#da-slate-holster-16

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.
