3D Printable Backyard Mini Golf!

Ever wanted to play mini golf at home, but found store‑bought sets too flimsy or too childish? With a 3D printer and a few simple materials, you can build your own quick to make & and easily customizable, rigid mini‑golf course right in your backyard with an easily reusable standardized design.

This guide walks you through printing the parts, building a sturdy golf club, and installing real ground‑set golf holes that feel surprisingly professional.

What you'll need:

Gardener’s Blue Ribbon 48‑in Green Metal Stake (ST4DI) — any length works

Painter’s tape (blue, medium width)

Thin blue duct tape

Bambu Lab 3D printer - https://bambulab.com/en

2 filament colors (or 2 spools of the same color) - Amazon.com: SUNLU

Golf balls (any type)

You will be 3D printing:

1. Putter‑end (the head of the golf club)
2. Hole cutters (white cylinders with handles and saw‑tooth bottoms)
3. Golf holes (short = regular holes, tall = end holes that must be pulled out)

Optional: Print the putter‑end in a different color than the holes and cutters for a cleaner look.

Wrap a band of painter’s tape around the stake next to the point where you plan to separate it. Make sure the tape is closer to the flat end of the stake.

This tape marks your break point.

REMEMBER DONT TOUCH THE SEPERATED METAL!!

Hold the stake firmly and bend it back and forth at the outer side of the taped point until it snaps or tears apart.

1. Keep the flat end — this becomes your golf club handle.
2. Discard the pointed end.

Open the flat end back to its original width if it compressed during bending.

Wrap painter’s tape around the flat end of the stake until it is close to the width shown in the second reference image.

Test‑fit it into the putter‑end:

1. If it slides in too easily, add another layer of tape.
2. It should require a bit of force to insert.

Push the taped end of the stake firmly into the hole on top of the putter‑end.

Secure it by wrapping painter’s tape around the joint at a slight angle, 2–3 times or as needed.

1. Tear a piece of painter’s tape with extra length.
2. Center it over the flat top of the stake and fold the excess down the sides.
3. Wrap long strips of tape down the sides to cover the folded edges.
4. (Optional) Decorate the handle with thin duct tape.
5. Add 2 rounds of thin duct tape at each end to lock everything in place.

Your golf club is now complete!

Short holes = regular holes Tall holes = end holes (both must be pulled out after pressing in)

Before cutting:

1. Soak the ground where the hole will go. This softens roots and prevents the cutter handle from breaking.

Choose the correct cutter for the hole size.

1. Place the cutter on the soaked spot.
2. Push and twist it into the ground halfway.
3. Pour a little water inside the cutter.
4. Continue twisting and pushing until the cutter reaches full depth.
5. Pull the cutter out.
6. Remove the dirt cylinder from the center.

Your hole cavity is now ready.

Push the printed hole into the ground by hand. Step on it gently until it stops.

It will get dirty — that’s normal and will be cleaned in the next step.

To clean up the hole:

1. Pour water into the hole.
2. Swirl it around to loosen dirt.
3. Dump the water away from the hole.
4. Most water will have already soaked into the soil.
5. The hole’s perfect fit prevents dirty water from getting back in from pressure.
6. Wipe the top and inside edges clean.
7. Insert the hole fully until it stops.

You’re done — enjoy your custom backyard mini golf course!