Cardboard Chainsaw

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Introduction: Cardboard Chainsaw


Hi, this toy chainsaw can be used on several occasions since trash movie to a fantasy party. It operates very simple: a button is pushed on the handle where it is held, which connects the engine and causes current to run. It was made with recycled materials that I had at home.
I hope you enjoy.

Step 1: Materials Needed

- 04 gears of a bicycle rear derailleur gears (screw, inner cylinder and the two caps, each);

- More than 02 screws to the inner cylinder;

- About 75cm bike chain (run);

- Slatted wooden box *

* I used 3mm balsa wood as he had at home. Can also be used thick cardboard (0.5 mm) which is much easier to find.

- Cart with a gear wheel, as figure;

or

- Standard servo modified for continuous rotation (see the internet how to make this change);

- 2 hangers (servo arm as shown);

- 2 small screws or glue to attach the hangers.

- 1 support for four batteries

- 1 normally open switch

- Hot glue, glue, ruler, pen, pencil, etc ...

Step 2: Preparing the Servo

After turning the servo to continuous rotation, solder two wires directly contacts the engine, by-passing the electronic circuit. I used the wire itself the servo, taking care to leave a tip of three wires which were originally linked to later be able to use again as a servo. That done, simply reassemble the servo. A good tutorial on how to put the servo continuous rotation:
http:// http://arduinianos.blogspot.com/

Combine the two crosses as figure using screws or gluing tight.

The crosses were selected because they have a center that fits mayor, allowing an optimal alignment between the servant and gear.

Step 3: Mounting Saw

The saw was made with a piece of old bike chain (about 75 cm) but would be very heavy. At first I put the chain on top of the strip and tried to find the best position for the gears. After that, I made the holes with a drill, mounted and fixed gears. I put the chain and marked with a pen so that when she was stretched, it should come as much as possible around the body of the strip. After these adjustments, I made a template to facilitate.

I made a servant to put the amount and stuck it into the body of the mountain by the same method of trial and error. It was found that the chain was still a little loose. Hence, I used two screws to the metal cylinder to stretch the chain a little. the result was very good.

Note: This metal cylinder must be supported only by the screw, that is, it must run to pass the stream.

Step 4: Body of the Saw


The body of the saw was made of cardboard.

materials:

- Cardboard

* Note: I used a 0.5 cm thick. This determined the distance between the edge of the body and the workpiece support.

- Hot glue;



Print layout and paste the picture on the cardboard . Cut and assemble.

Now, just paint and is ready

Make It Move Challenge

Second Prize in the
Make It Move Challenge

Halloween Decorations Challenge

Finalist in the
Halloween Decorations Challenge

Green Living & Technology Challenge

Participated in the
Green Living & Technology Challenge

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    20 Discussions

    0
    malisha009
    malisha009

    Question 2 years ago

    Actually, I need a chainsaw sharpener. Please suggest me a perfect chainsaw sharpener.

    0
    jng zheng han

    Umm, is there a video? I'm sorry that I find this hard to understand but it would help. I'm just a 13 year old trying to mess around and just try to get it to work. Will a video be up soon? Or could you link me to the video? Thanks!

    0
    PeckLauros
    PeckLauros

    Reply 7 years ago on Introduction

    Hi. Its a old project with no video but i will tri to make one.

    0
    Victor Moser
    Victor Moser

    8 years ago on Step 4

    Putz velho, bom demais, criatividade é tudo!
    Bom achar um BR aqui no site =D

    0
    PeckLauros
    PeckLauros

    Reply 9 years ago on Introduction

    Oh yes. But I'm having difficulties to embending.

    0
    bgepp1
    bgepp1

    Reply 9 years ago on Introduction

    just upload to Youtube and post the link - this chain saw is so incredibly cool buuuuut in this day-and-age you gotta have the video demo. can't wait to see this baby in action!

    0
    randofo
    randofo

    Reply 9 years ago on Introduction

    If you would like, I can embed it for you if you give me the link

    0
    actimm
    actimm

    9 years ago on Step 4

    I think it's a good instructable in the design and planning and I especially liked the picture by picture detail of the build through the steps, but sadly, the sentence structure and word choices show the limitations of the translation software. I run into the same issues with user's manuals for some of the milling machines I use at work.

    0
    PeckLauros
    PeckLauros

    Reply 9 years ago on Introduction

    Thanks for the comment. Glad you liked the step by step.
    I promise to improve my English, as far as possible.

    This would be perfect for cutting down the cardboard tree in my backyard.

    0
    PeckLauros
    PeckLauros

    Reply 9 years ago on Introduction

    Hehehehehe..... I did exactly that thinking

    0
    cambigfoot
    cambigfoot

    9 years ago on Step 3

    at www.harborfreight.com you can buy an 18v rechargeble battery with charger for cheap . if you used that battery it would look more realistic but still ur projects cool

    0
    aeray
    aeray

    9 years ago on Introduction

    Excellent work. It appears to be a left-handed chainsaw though. Even more sinister that way, though.