Hollyland Solidcom C1 Headset Saddle - Backstage cart lip (one piece, strongest)
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What it holds: Hangs a Solidcom C1 or C1 Pro single-ear on the cart side: soft crowned band saddle, adjustable cup cradle that stops swing, boom slot, battery door left clear.

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
  - HA_C1_saddle.stl  (supports: no (unless your slicer warns))
  - HA_C1_cradle.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: Default: one piece with the Backstage/Magliner cart-lip mount, strongest. Optional M5 thumbscrew lock in the mount. Prints standing on its end.

HOW IT WORKS
  A home on the cart for a Hollyland Solidcom C1 or C1 Pro single-ear wireless headset (master or remote), hung by its band with the mic cup held still.
  How it holds

  - Saddle: the headband lies across a 60 mm wide saddle 58 mm out from the cart side. The saddle is curved across the band (R60), so the band rests on a soft crown and is never bent over an edge. A 13 mm back stop and a 10 mm front nub keep it in the 40 mm valley, so a bump cannot walk it off.
  - The band carries the weight; the cradle stops the swing: the earcup with the mic boom drops into a tall U-shaped cradle (62 mm front tine, 50 mm ears, flared tops so the cup finds its way in without looking). The seat sits where the cup ends up with the headband sliders pulled fully out, and the walls are tall enough to hold the cup with the sliders pushed fully in too, so it does not matter how the last person left the sliders: the band always rests in the saddle and the cup can never swing or twist on a moving cart. The cradle only touches the front and back edges of the cup, never the middle of the outer face, so the TALK/MUTE button on the C1 Pro cup is not pressed.
  - Boom slot, stored muted: fold the boom UP (muted) before you hang the headset. The two ears on the cradle's outer side leave a 60 mm slot between them, so the boom hub and the folded boom stand clear. The headset will not go in with the boom down (the boom meets the cradle's bottom lip), so every headset on the cart is stored muted.
  - Battery side free: the battery side hangs past the end of the holder with nothing near it, so you can open the battery door and swap a pack without taking the headset off.
  - One hand: lift the headset straight up and it comes out of the saddle and the cradle together. Drop it back the same way.
  Setting the cradle (once)
  1. Press an M5 heat-set insert into the mount flange.
  2. Drop two M4 nuts into the channel on the back of the panel (they cannot turn there).
  3. Hold the cradle against the panel and put two M4 x 10 button-head screws through its slots into the nuts, loosely.
  4. Pull both headband sliders fully OUT and hang the headset. Slide the cradle along the cart and up or down until the cup just touches the seat while the band still rests in the saddle valley, then tighten the screws. Push the sliders back in: the cup lifts but stays inside the cradle walls.
  Sizes are partly estimated. Hollyland publishes the single-ear headset's overall size (186.9 x 75.6 x 188.6 mm) but not the band, earcup or boom sizes. The cradle therefore adjusts 10 mm each way, along the cart and up and down, so you set it to your own headset once. If your headset does not sit right even at the ends of the slots, measure it (see below) and tell us; the build script takes the new numbers.
  Which headset: the C1 and C1 Pro single-ear headsets share one body (186.9 x 75.6 x 188.6 mm, about 170 g), so this one saddle fits both. The speaker cup with the boom goes in the cradle and the battery pod hangs free.
  Numbers

  - Sticks out 111 mm from the cart side (cradle front); the saddle 92 mm
  - Hangs 229 mm below the deck at the cradle (the headset itself hangs about as low); the block top stands 42 mm above the deck
  - Takes 140 mm of cart edge, plus the battery side hanging about 64 mm past the holder's end
  - Needs 45 mm of flat cart side below the lip for the back plate; below that the panel stands 6 mm off the cart
  - Hardware: 1 M5 short heat-set insert + nylon-tipped M5 thumbscrew; 2 M4 x 10 button-head screws + 2 M4 hex nuts

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/#ha-c1-saddle

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.
