Light and Colour Meter Duo Holster (fits Sekonic L-858D + C-800) - Backstage cart lip (one piece, strongest)
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What it holds: Both meters side by side in one cart holster: L-858D on the left, C-800 on the right.

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_PC_meter_duo.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, optional M5 heat-set insert + nylon-tipped M5 thumbscrew (two on the duo). Prints upside down, rim on the bed, no supports.

HOW IT WORKS
  The L-858D and C-800 cradles in one part, with a 17 mm wall between them (wide enough that the L-858D eyepiece clears the C-800 by about 4.6 mm) and the same protection in each. It has two M5 inserts (the part is 167 mm long) and a tether lug at each end.
  How it protects the meter: nothing comes near the lumisphere or receptor. At the front only two 6 mm corner rails touch the meter, on its rounded body corners. Between them the wall is set back 1.5 mm and opened by a large arched window, so you can read the screen while it is docked and the MENU and Power buttons are never touched. A 1.5 mm relief channel runs down both side walls, so the side buttons and port covers are never pressed. Two flex fingers on the back wall press gently on the battery cover (clear of the latch) to hold the meter on the rails: no rattle on a moving cart and no bounce-out. The meter lifts straight out with one hand. The floor is open: the meter stands on two 45 deg ledges under its bottom edges, so the strap eyelet, tripod socket and port flaps carry no load, and rain falls through. Each ledge has a 1 mm deep pocket for self-adhesive felt. There is a strap gap at the front-left, and a tether lug for a coiled lanyard.
  On the cart: sticks out 62.9 mm from the cart side, hangs 70.2 mm below the deck, and needs 70.2 mm of flat cart side below the lip for the back to bear on. It is 167.2 mm long.
  Retention on the cart: held by gravity unless you fit the M5 thumbscrew. Press a short M5 heat-set insert (6.4 mm bore) into the hole on the deck-side face of the clip, then fit a nylon-tipped M5 thumbscrew. It clamps the cart lip so the holster cannot lift off on a snag, slide along the lip or rattle. The screw sits 13 mm above the deck, so your cart's lip needs to be at least 16 mm tall.
  Fits: Backstage Equipment and Magliner-style carts with a 3.4 mm shelf lip. It drops on from above: a 3.7 mm slot (0.3 mm clearance), 26.6 mm deep with a rounded end and chamfered 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/#pc-meter-duo

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.
