Refillable Dog Poo Bag Holder/Reel

Introduction

Local Councils supply biodegradable dog poo bags at selected locations where I live. To make these bags readily available whilst on a walk (Oh no, I used the W word - I hope your dog can't read) I designed this refillable holder/dispenser to attach to the lead.

Printing 

This holder can be printed in whatever filament you prefer (non flexible of course). I suggest not using PLA as it may not withstand higher temperatures if the lead and holder are stored, for example, in a vehicle in summer. I used PETG.

No supports are necessary due to the curved design of the oval opening, the internal crank and the attachment hoop.

Assembly

Assembly should be straightforward. Insert the internal crank through the body, locating the threaded end through the 10.5mm hole in the end of the body. Screw the nut onto the protruding end thread. All done!

Note that the nut is designed to be a relatively tight/firm fit.

Usage

To fill from empty, reel out a strip of around 10 bags from the Council's dispenser and insert the closed end of the strip through the body's oval opening and into the slot of the internal crank. If you have fat fingers like me you may need to remove the crank slightly from the body to guide the strip end into the slot. Once around 2cm is threaded through the slot, rotate the large end of the crank to wind the bags into the holder.

Refilling the holder when it still has some bags left is easier for me. Just pull out around 10cm of bag and insert the new strip (closed end first) under the loose end, then wind the loose end back in capturing the new strip of bags.

Note that inserting the closed end of the new bag strip stops air being trapped in the bags.