Have you ever lost, or broken, the insert in the tape that holds it down to the dispenser? Here is a quick 3D print fix that will allow you to keep using a dispenser after the tape holder portion of it is not usable. This insert fits the tape roll of the "universal invisible tape" that is found at my school (see below): however, the diameter can be adjusted to fit a different tape by downloading the piece and changing the diameter to be 0.035 cm more than the diameter of the inner core of the tape you are trying to use.
This project was designed for a teacher, who needed a replacement for their tape holder. In order to save money, filament, and reduce the need for supports, we decided to utilize a small piece of dowel in order to secure the piece to the tape dispenser. However, if you do not have a dowel, and would like to print a "peg" instead, there is also a file that can be used to print it. (peg file to be uploaded)
Overview and Background
After receiving the request for the tape, I researched the specifics and elements that could create a piece that would fit tightly and securely in the inner core of the tape dispenser, but also use the least amount of filament. Therefore, I measured the diameter of the tape that the teacher wanted to use.
Then, I made a "constraint" circle to ensure that the piece would fit, no matter what changes I made. I created the constraint circle as 0.035 less than the actual diameter of the piece as that would create a tight fit with the inner core. After then creating a shape that would hold firmly in the core and cut extruding out some triangles to reduce the amount of filament needed to print, it was ready!
Finally, after testing that this size was correct, I printed the piece and gave it to the teacher that had requested it.
Lesson Plan and Activity
This is the tape brand that this insert was designed around.
Also, around a 3.2 cm long wooden dowel (Soft wood, 0.25" dowel - can be found at stores, like Home Depot) is needed to secure it to the dispenser in addition to the printed piece
Note: the length of the dowel can change depending on the width of the gap for the tape dispenser you are trying to use. However, I have found that this size generally works for the generic size of the standard tape dispensers found in school or office supply stores.
This video that depicts how to use the piece in a tape dispenser will be uploaded as soon as it can be taken.
The general process is easy. First, cut the dowel into the correct length (3.5 cm or different depending on specific dispenser) or print the peg file, and then:
Slide the printed piece into the tape
Place the dowel through the circle in the center of the piece such that the piece is approximately centered on the dowel.
- Slide the overall piece into the dispenser.