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

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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



    • Indoor Lighting Contest

      Indoor Lighting Contest
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      Make It Fly Challenge
    • Growing Beyond Earth Maker Contest

      Growing Beyond Earth Maker Contest

    4 Discussions


    1 year 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!


    1 year ago

    Great to see you here on Instructables too! :)