How to Make a 2-Way Zipper By Linda In Instruction Posted Oct 17, 2015 Once you know how to fix a zipper, you can make a 2-way zipper. Note: A separating zipper can be made into a closed end zipper, but a closed end zipper cannot be made into a separating zipper. Step 1 Step 2 Step 3 Close-up Step 4 2-Way Zipper