How to Bike-A-Line!

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Introduction: How to Bike-A-Line!

About: Hi! My name is Hans, I live in Scandinavia where I build whatever pops up in my head, out on to my sketchbook and finally into my hands. My projects here are my favorites and I hope some might inspire you. Rem…

How can you leave a mark when biking? Meet the Bike-A-Line machine! Make lines with chalk as you ride your favorite two-wheeler (as you see I've made an attachment for e-scooters as well).

I love bicycles and many of my projects have some kind of bike component. With this Instructable, I hope to inspire you to build stuff for your bike ( If you got time please check out my bike cinema the Cine Abulante and my bike caravan, the Quarter Camper)

This very simple machine (is it a machine?) is so much fun to use.

Follow the line!

Supplies:

Metal scraps

Spring

Nuts and bolts

Tools:

Welding gear

Step 1: The Chalk Arm

This is super easy and I guess you can do this many other ways, I wanted it to survive a war so I chose to weld it all up. The chalk holder was a square pipe and I made a simple hinge for the arm to attach and move freely. Where the chalk is I added a spring to push the remaining chalk out and use almost all of it. What I needed to find was a small weight so the lever would be forced to the ground.

Step 2: Clamp for the Bike

Super simple clamp to attach the arm to the side of the bike. Most important is to have the arm steer away from the wheel. The arm has a bend and the clamp has an extended screw for the arm to lock into. The clamp itself is only tightening two steel plates to the rear bike frame. The eye screw is used so it will be easy to screw/unscrew when done.

Step 3: The Bike Connector

The arm is made so it will clamp to the side of the rear bike wheel. At this point, you need to screw it onto the clamp. It works really well. The arm has a bend so to make it point outward from the tire.

Step 4: Measure Once… Twice!

I used my credit card to check the size of the e-scooters rear. Also, I needed to see if the chalk arm would work. With these guidelines, I went to work and eyeballed the new add-ons to the machine.

Not only can I ride my bike and draw a line, as of today I can jump on a scooter and line everything up:-)

Step 5: The Scooter Attachment…

There is no need for this part to be fastened to the scooter, all you do is put it on the back wheel and have your footrest on it. I work very well and I had no problem as you might see in the videos.

Step 6: Leave Your Mark!!!

I believe bikes should be allowed more room and lanes to roam free. This crude little machine/tool will at least make people smile, I know because they do when I pass them. And a smile goes a long way when you want to make more people happy about cycling.

I would love to see others have a go at this solution and maybe add more finesse to the design. I like this in its very simple function and I can assure you it will take a beating and still make a mark:-D

Want to see more bike-related projects, please ride along over at my Instagram: @smogdog

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    9 Comments

    2
    AlNapp
    AlNapp

    15 days ago on Step 6

    I am thinking "replace chalk with a flint or fire steel"

    0
    smogdog
    smogdog

    Reply 15 days ago

    Great idea!!! I’ll get back to you…
    I’m not kidding!!! 😂😜🔥🚒

    0
    AlNapp
    AlNapp

    Reply 15 days ago

    Quite why a 52 year old man needs a sparking bike, IDK

    But, I need a sparking bike 😉

    0
    smogdog
    smogdog

    Reply 15 days ago

    And you will get it!!! 🤩 I promise!!!

    0
    ElectroFrank
    ElectroFrank

    Reply 14 days ago

    Why would you want to leave a chalk line ?
    To make it easy for the police to follow you ?

    However, a little sparking at night could show you up for safety.

    0
    smogdog
    smogdog

    Reply 14 days ago

    Why not:-)
    I'll have the Police occupied for hours with this:-)

    Sparking will be added in version 2.0… I've made an oath to AlNapp:-D

    0
    g3holliday
    g3holliday

    Reply 6 days ago

    I will 100% favorite the sparking, police attracting, arrest-prone bike when it comes out :)

    0
    smogdog
    smogdog

    Reply 3 days ago

    Well, I can comfort you by infoming that spark is on it's way:-) Can't wait to test this, will let you know!
    Cheers
    Hans g

    0
    g3holliday
    g3holliday

    Reply 1 day ago

    Very cool. I will be waiting!
    Thanks, g3holliday