Part of my project :)
Printed in ABS. only 8cm.
There are 2 type of zipper head. Closed side and open side. Maybe you can use them to replace your broken one :)
there are narrow and wide zipper head. please tell me the best one.
PS: for the open sided head, you must clean the chamber before use them. I dont know why but it wont happen in the closed sided zipper
pls tell me if you need longer rail :) but no hurry ok. I do it in my spare time :)
Overview and Background
Principle of a Zipper
This project will show and teach student how zipper works
Lesson Plan and Activity
for the 3th grade : let them play closely with the zipper (with supervision)
for the 9th grade : learn how zipper works
for the 12th grade : try to draw zipper in 2D with precise measurement
for higher grade : try to model the zipper in 3D and see how it works
Draw and Build