🧢 Cap Rack & Hanger Research

3D-printable racks, hangers, and organizers for baseball caps and other collections — curated from Printables with real like/download counts. Every card links straight to the model page. Best-fit picks for Anna's upright slotted-organizer photo are flagged.

📸 Anna's reference: a clear acrylic upright slotted cap organizer — caps stand in a row like plates in a dish rack, each in its own divider slot. The closest printable matches are in the first section.

🖨️ Your printer: Infimech TX (CoreXY, Klipper). PETG works great for these — strong, slightly flexible, holds up to sun near a window. Bed ~250×250. Most of these print with zero or minimal supports. Prusa-style PLA files reslice fine in OrcaSlicer for PETG.

① Upright slot organizers MATCHES ANNA'S PHOTO

Caps stand upright in individual slots — the exact style in the photo. Best for shelves, closets, or countertops.

Printables · best match

Ball Cap / Hat Organizer Rack

Modular slotted rack — caps stand upright in a row, exactly like the acrylic one. Add as many segments as you want.

♥ 191⬇ 1,029by Cheeseburgers

Printables · best match

Stacking Hat Rack

Interlocking modules that stack/expand to any capacity. Great countertop or shelf organizer for a growing collection.

♥ 151⬇ 1,262by brandroid

Baseball Cap Holder

Simple shelf-standing holder that cradles a cap by the brim. Print several for a row.

♥ 123⬇ 688by Isaac

② Wall-mount racks

Screw or command-strip to a wall for a hanging display. Good for showing off a collection.

Printables · popular

Snapback Cap Wall Mount

Clean single-cap wall mounts, purpose-built for snapbacks. Print a row for a display wall. One of the highest-rated cap wall mounts.

♥ 345⬇ 685by Scott

Baseball Hat Wall Mount Display Hanger

Angled display hanger that shows the cap face-forward — great for showing off favorites.

♥ 160⬇ 1,212by Vincent

Baseball Cap Hook / Wall Mount

Simple single-cap wall hook — cheap, fast, print as many as you have caps.

♥ 59⬇ 337by T-bone

Baseball Cap Hat Rack Holder

Wall-mounted cap rack — clean look, holds caps by the crown.

♥ 79⬇ 483by sevenbravo

Wall Mount Hat Rack

Sturdy wall bracket style, expandable in a line for a whole collection.

♥ 121⬇ 865by Fred

Wall Mounted Hat Rack

Minimal single-cap wall hangers — print a bunch and space them how you like.

♥ 53⬇ 344by Kbkathri

Expandable Hat Rack / Coat Rack w/ Wall Hanger

Expandable rail with hooks — doubles as a coat rack. Modular length.

♥ 47⬇ 477by 3Diocrity

③ Single hangers / clips

Clip onto a closet rod, a shelf edge, or a regular clothes hanger. Cheap, fast prints — make one per cap.

Baseball Cap Holder / Cap Hanger

Hooks over a closet rod or hanger bar; stack caps down a rail.

♥ 10⬇ 41by Samu

Hat / Cap Hooks — Wall Storage

Slim individual cap hooks, wall-mount. Print in a row for a display wall.

♥ 198⬇ 1,148by Ron

④ Hooks & cap extensions

General-purpose hooks that work great for caps, plus a snapback extender to keep caps from deforming.

Printables · popular

Double Cap / Hat Hook

Holds two caps per hook. One of the most-downloaded cap hooks on Printables.

♥ 1,146⬇ 2,746by alobal

Low Profile Hat Hook

Slim, unobtrusive hook — disappears behind the cap. Prints in minutes.

♥ 240⬇ 1,314by Brian Zak

Another clean minimalist hook; great for a tidy row along a wall.

♥ 166⬇ 1,158by musicalbigfoot

Snap Back Hat Extension

Clips into a snapback to widen it so the cap keeps its shape on any rack/hook.

♥ 96⬇ 670by JoshCraft3D

Basic reliable hat hook — a good base design to remix your own from.

♥ 119⬇ 927by Amadeo

④½ Display stands & other hat styles

Freestanding display stands and racks for fedoras/cowboy hats too — in case the collection isn't just ball caps.

Hat Display Stand

Freestanding single-hat display — sits on a shelf or dresser and cradles the cap crown-up.

♥ 98⬇ 620by telly0050

Fedora Hat Wall-Mounted Holder / Hook Rack

Wall holder shaped for wider-brim hats (fedora/cowboy). Works for caps too.

♥ 24⬇ 245by Moneymike

⑤ Other collection racks (same idea, different stuff)

You asked for "all sorts of collections" — these are the same slotted/modular-rack concept for other items. Easy to remix the dimensions for caps or anything else.

Printables · popular

Canned Food Can Rack (gravity-feed)

Gravity-fed slotted rack — the mechanism/geometry is a great base to remix for round objects. ♥906.

♥ 906⬇ 1,749by enjay

Printables · popular

Spray Can Holder / Organiser

Modular upright slot organizer — nearly the same architecture as a cap rack. ♥766.

♥ 766⬇ 3,102by Vicente Adauy

10-Capacity Fingerboard Rack

Slotted display rack — clean example of an individual-slot upright organizer to remix.

♥ 52⬇ 544by DarthTommy

Printables · very popular

Dummy 13 Hat Pack (mini display hats)

Fun one — printable mini hats. Not storage, but a top collection item if you want display pieces. ♥754.

♥ 754⬇ 3,570by Shadymilkman

⑥ Where to browse the rest of the internet

These are JS-heavy so I couldn't scrape them cleanly, but here are the live search links — click to keep hunting for designs you can modify.

Printables — "cap rack" search

Full live results, sortable by likes/downloads/newest.

MakerWorld (Bambu)

MakerWorld — "hat rack" search

Tons of parametric, remixable cap racks with print profiles.

Thingiverse — "baseball cap rack"

Classic archive; lots of STLs to remix in your slicer.

Cults3D — "cap rack"

Mix of free and paid; strong for polished designs.

Printables — "hat hook" search

Every hook variant if you want a wall of individual hooks.

Thingiverse — "cap organizer"

Drawer inserts and stackable organizers.

🛠️ PETG print tips for these

Material: PETG is ideal — strong, a little flexible so slots grip caps, and sun-safe near a window (PLA would sag/warp).
Settings: ~3 walls, 15–20% infill. Hooks that bear weight → bump to 4 walls / 30%.
Supports: Most upright/slot racks and hooks print support-free. Wall brackets with overhangs may want a few.
Orientation: Print hooks flat-on-bed so layer lines run across the load (stronger). Slot racks print as-modeled.
Remixing: The modular slot racks (①) and can/fingerboard racks (⑤) are the easiest to rescale for cap width in your slicer or CAD.

Curated live from Printables (real like/download counts as of research). Bare /model/<id> links auto-redirect to the full page. Reference photo from Anna: acrylic upright slotted cap organizer.