Here are instructions for the Knex Triple Arm Lift (a knex ball machine lift).
The lift is quite easy to make and rotates very smooth when the instructions are carefully followed. As you can see by the title, the lift makes 3 separate movements when only 1 (6V) motor with 2 dubble A batteries is required.
The lift can also handle multiple knex balls at one time thanks to a little ball dispenser that is connected to the same motor that rotates the lift.
Make sure to check out Step nr 1 to see if you have all the special pieces you need to make this lift, (like Micro Knex pieces, the big green gear, etc...).
If there are any complains, questions or problems about the lift, please tell me in the comments below.
Thanks for watching, building,
Step 1: Special Pieces You Need:
Step 10: Very Important Step:
Make sure that all 3 oranje connectors are going upwards. Once you're sure, you can take the 3 connectors of.
Step 18: Another Important Step:
Make sure that you push the little button of the motor to the right.
Step 19: Third Important Step:
When the 2 rotating imputs are perfectly horizontal, make sure that the little ball dispenser is in the same position as shown on the picture.