How to Make a Gears Curving Arm Slider




About: I recently started translating and film my tutorials in English to share my passions. I am a famous YouTuber in Europe. forgive the mistakes english is not my first language :) RULOF MAKER


this slider can slide in curve and innovative way

Step 1: Metirials for Firs Steps

see my video tutorial:

take 8 brass pipe t connetors 1/2

"complete video here

and many small ball bearings

Step 2: Press Ball Bearings

use the vise to press the ball berings in place

Step 3: Gears Assembly

gears assembly. plexyglass base.

4 big ball bearings.

long stainless steeele screws

opposite movement of the gears.

Step 4: Cut Pipe Connectors Shorter

cut pipe connectors shorter

Step 5: Add Long Pipes

add long pipes

Step 6: Final Result

the slider can slide like a regular slider. or can be used to make a narrow or large curve.

so i can keep the subject in the center or slide around

see video test and tutotorial here:

Make it Move Contest

Second Prize in the
Make it Move Contest



    • Pocket Sized Contest

      Pocket Sized Contest
    • Remix Contest

      Remix Contest
    • Tape Contest

      Tape Contest

    4 Discussions


    8 months ago

    What a great build!

    I'm very interested how you came up with this deign, how it works and how you worked out the arm lengths, pulley dia/teeth ratios etc.

    Would be great if you could post here or contact me direct. Thanks!


    10 months ago

    Great to see you here on Instructables too! :)