12 V Cordless Ratchet Sleeve - Backstage cart lip (one piece, strongest)
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What it holds: Head-down sleeve for a 12 V 3/8 in cordless ratchet (long or stubby). Grab the handle and go; flex bands stop the rattle.

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
  - H_RF_ratchet_sleeve_lip.stl  (supports: no (unless your slicer warns))

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 (strongest). The sleeve sits 7.5 mm closer to the cart and 8 mm higher than on the DOCK adapter; back plate bears on the cart side. Optional M5 heat-set insert + M5 thumbscrew clamps the lip. Prints upright like the DOCK version; turn on support ON THE BUILD PLATE ONLY: it only lands under the lip block's inner flange (the rest needs none). ~122 g.

HOW IT WORKS
  A cordless ratchet has no flat side and rolls off a cart deck. This 52 mm sleeve, 110 mm deep, takes it head first with the handle and pack up. The floor has 4 drains, the rim a 3 mm lead-in, and a front window shows the tool.
  Flex bump bands: two bands cut into the sleeve wall press lightly on the ratchet body (they reach to 42.4 mm diameter), so it does not rattle or hop on a bumpy push. They bend round the circumference, inside the print layers, so they last.
  Sized for a 273 mm 12 V 3/8 in ratchet with a 32 x 29 mm head; stubby versions fit too. Measure your ratchet body: the bands assume about 44 mm.
  Mounting (DOCK system): the back carries one DOCK tongue. Drop it into DOCK carrier adapters (Magliner / Backstage lip, ToughBuilt bar, round or square tube, T-slot; all in the DOCK system listing) and it clicks in. To take it off, push the release pad with your thumb and lift. Fit the adapter's M5 lock thumbscrew: this holds a heavy tool well out from the cart.

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/#rf-ratchet-sleeve

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.
