After many many revisions of my designs, I've finally settled on this design.

Its strong, really easy to use and cuts the tape with minimal effort.

Fits all 50mm wide packing/masking tape with internal diameter of >70mm

All parts are easy to print and require no supports.
*I chose to use a steel roller pin as apposed to the printed part as I was finding that the printed part would bind up most likely due to the frictional heat generated when taping up a lot of boxes like I was when I was moving house. This may not be an issue for you so I've included the printed version.

Additional parts needed that aren't printed (see additional images)

• 2 x Small screws approx 15mm long
• 1 x 6mm x 56mm rod(metal preferred but printed version available)
• 1 x 50mm x 19mm Stanley blade(I filed the edges down so please use caution)
• OPTIONAL - 1 x 1mm x 50mm x 55mm plastic card
  (*I used an old plastic membership card)
  This may not be necessary but I was finding that some of the cheap plastic tapes would retract back into the dispenser after being cut so I added a plastic card to put a little bit of pressure on the tape roll to minimise it from happening. Should it happen its as easy as unscrewing the lid, pull the tape out, screw lid back on and your back in action.

Printing recommendations

• Material: PLA/PETG/ABS
• Supports needed: No
• Raft/Brim needed: No
• I printed mine at
  • 0.2mm (I have a 0.4mm nozzle)
  • 15-20% infill(rectilinear)
  • 4 wall loops
  • 4 top and bottom shell layers
  • Seam Position: Aligned

Assembly Instructions

1. Insert the 50mm(w) Stanley blade into the blade slot
2. Insert the Plastic card into the card slot(optional)
   (*Make sure that the card doesn't protrude higher than the width of the base as this will prevent the lid from closing properly)
3. Place the steel rod into the base roller hole
4. Place roller over the steel rod
5. Place roller cover over the rod and secure with the two small screws
6. Insert 50mm tape with the lead under the roller
7. Screw lid down but don't over-tighten

It took me a while to design this from scratch and to get it to the point that I feel its ready to share with others. I have only been 3D printing and designing for a few months and am very happy with how well this works and I hope you do too! Feel free to leave me a comment/feedback with your thoughts/suggestions on how I could improve.

Please leave me a comment of how it went for you and I'd love to see your photos of your makes. If you have any questions then please let me know in the comments below.

Enjoy and happy 3D Printing! :D