🧵 Modular Spool Stand – Stackable, Support-Free, Rock Solid

Bought a new filament? Just print a new segment from it — now you've got both a storage spot and a built-in sample.

This is a modular spool stand: print the base, then just screw in as many segments as you want. Seriously — stack it up endlessly. One segment? Fine. Ten? Go wild.

Each segment is 65 mm tall (excluding threads), which fits most standard large filament spools perfectly.

🧩 Assembly Options

There’s no single right way to build this stand — it’s modular for a reason. Here are a few ways you can put it together:

Basic Setup: Start with the base, then stack standard 65 mm segments. This fits most full-size (1 kg) filament spools. Also you can use double sized segment - 130 mm.

Small Spools? No Problem: Use the optional 36 mm segments — ideal for 250 g or other compact spools. Honestly, I just use the large 130 mm segments for everything — even for small spools. I just print the big ones and hang all types of filament on them, no matter the size.

With or Without Handle: The top handle is optional. Use the short version for minimalism or the long reinforced version for durability and grip.

Need Separation or Rotation?: Add spacer rings (included model) between segments. These act as resting points for individual spools and allow light rotation, so you can pull filament directly from the stack without friction from adjacent reels.

Whether you’re building a static storage tower or a semi-functional rotating rack — the system adapts.

🔧 Smart Design, No Supports Needed

Everything is designed to print cleanly without supports, including the screw threads. The geometry is carefully engineered to give you maximum strength with minimal plastic.

Even at coarse settings — I print at 0.28 mm layer height on an Ender-3 — the results are excellent. The threads are clean, everything fits snugly, and the parts look great with no ugly angles or defects. One segment takes 4–5 hours to print at this quality.

🖐 Optional Handle Modules

Two handle options are available — one short, one long.

The short handle is simple and compact — perfect for a clean, minimal top cap.

The long handle, however, is where things get interesting. It features an internal reinforcement system: a vertical inner rod and carefully positioned hollow zones increase structural rigidity without adding bulk. This design makes it exceptionally strong, even when printed with standard filaments.

Whether you're lifting, rotating, or just want a satisfying finishing touch — this handle is engineered to hold up.

✅ Features:

Modular & stackable — grow it anytime

Zero supports required

Tight screw-locking with friction bumps

Super stable — no wobble, no sag

PETG recommended. PLA works too, just tighten carefully

Personally tested with PETG. I crank it tight — no cracks, no flex, no problem. On the flip side, I’ve cranked some of my PETG modules so tight I can’t even unscrew them anymore. So yeah — tighten with care, based on your material.

I actually tried printing one of the modules in silk PLA — and when I tightened it with the same force I usually use for PETG, the whole thing cracked and broke apart. No joke. So if you're using PLA, don’t overtighten. You're not hauling it down a bumpy road — if it doesn’t come loose when sitting on a shelf, that’s good enough.

🧠 Extra Notes:

The base might warp slightly depending on your bed adhesion and cooling. No big deal — you’ve got two simple fixes:

Option 1: Use a brim or adhesion settings in your slicer (like Cura’s “Adhesion” mode) to ensure solid first-layer grip.

Option 2: Stick soft rubber or foam feet under the base — or better yet, print your own.

💡 You can 3D-print custom feet using TPU-95A — a flexible filament perfect for this job. Just use 30–60% infill to keep them springy. Above 60%, they get firmer and lose bounce. Stick them on with hot glue or double-sided tape — done. They won’t stop slipping on slick surfaces, but they’ll correct for any base wobble and unevenness like a charm.

Printing each segment from the filament it will hold gives you a handy physical sample of that material.