CollarPod – Poop Bag Holder for Dog’s Collar

A few weeks ago I headed out for a walk with Bob and Heidi on a warm day. Left my jacket at home. No bags. You know the moment — the dog squats and you’re standing there with nothing. That was the day I decided I really needed to design the CollarPod.

Click here to download STL (Affiliate Link)

Overview

CollarPod is a compact, single-piece flexible bag holder that clips directly onto your dog’s collar so a bag is always there when you need it — even on those walks where you forgot your jacket, your bags, or just your brain. Printed in TPU, it flexes to clip on without any tools and stays put all day.

What It Is & How It Works

1. Flex the back of the pod over the collar edge — TPU flexibility makes installation easy without removing the collar.
2. Fold a standard poop bag tightly — lengthwise four times, then once across. Keep air out for the most compact fold.
3. Close the lid and press until the side tabs click. CollarPod is designed to be firm enough to open that it won’t accidentally pop open on the walk.
4. Check the viewing window before each walk — bag visible means you’re ready to go.

Key Parts & Mechanisms

• Collar clip — flexible TPU grip that flexes onto the collar without tools and holds firm during use
• Lid with side-tab latches — snaps closed securely; firm enough that it won’t pop open accidentally
• Viewing window — confirms a bag is loaded at a glance, no need to open the lid before each walk
• Single-piece design — no assembly, no loose parts, nothing to misplace

Printing Notes & Recommended Settings

• Material: TPU 95A or similar — Bambu TPU for AMS works well
• Nozzle: 0.4 mm
• Layer Height: 0.2 mm
• Walls: 4 (1.6 mm)
• Infill: 40% Cubic
• Support: None required
• Print on a single direct-feed spool for best TPU results

Post-Print Setup

No major post-print work needed. Once off the bed:

1. Open and close the lid a few times to seat the latches — TPU may be slightly stiff fresh off the printer.
2. Flex the collar clip open and snap it onto your dog’s collar. It seats firmly without removing the collar.
3. Load a folded poop bag, close the lid, and you’re done.

Available Sizes

CollarPod is available in three sizes to fit common collar widths, plus a BeltPod variant for humans:

• CollarPod 17 — fits 5/8″ (17 mm) collars → Download on Thangs
• CollarPod 26 — fits 1″ (26 mm) collars → Download on Thangs
• CollarPod 40 — fits 1.5″ (40 mm) collars → Download on Thangs
• BeltPod 40 — clips to your belt (up to 1.5″ wide) → Download on Thangs

Measure your collar or belt before printing. If you’re between sizes, go with the larger variant.

Why This Design Exists

Designed and field-tested in Vancouver, BC — with Bob and Heidi. Because a bag on the dog is always better than a bag you forgot at home.

Where to Get My STL Files

All my designs are available on Thangs.com.

Use, Licensing, Comments and Feedback

Some of my designs are only available for free for 1 week from when first posted, so please download them when you see a new file available that you are interested in. Also, please like and save the file too as it helps with my ratings.

I do not permit the use of my designs for commercial purposes (i.e. you can not sell my design(s) or products printed from my design(s)) without first acquiring a commercial license from me. On Thangs.com I offer membership accounts for access to all my design files as well as a membership for commercial licensing which allows subscribers to sell printed products using my designs.

I welcome comments and feedback as well as requests for customization of designs. I will do my best to accommodate reasonable requests.