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A simple physical system that exhibits intense dynamic and chaotic behavior which has a strong sensitivity to initial conditions.
A simple physical system that exhibits intense dynamic and chaotic behavior which has a strong sensitivity to initial conditions.
A simple physical system that exhibits intense dynamic and chaotic behavior which has a strong sensitivity to initial conditions.
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166 backers pledged $15,131 to help bring this project to life.

About this project

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SPINPAL DP | Double Pendulum Desktop Physics Toy

$15,131

166

Help make Spinpal DP a reality today by backing one of the rewards on the right-hand side of this page. Thank you for your support!

The Idea

To design and create a high quality, ultra performance, desktop physics toy at a reasonable price.  Physics has always been a science discipline that has fascinated me.  Along with my passion for design and engineering, physics toys were a natural fit.  The double pendulum is one of my favorite physical systems because of it's sublime simplicity which turns to chaotic kenetic movement with just a little help from gravity.

Spinpal DP is the perfect addition to an office desk, kitchen counter, living room coffee table, or bedroom night stand.  It is sure to start a conversion and capture the attention of all who see it in action.

Funds are needed to scale manufacturing which will reduce cost and production time, while increasing part quality. Every Spinpaler (Spinpal-Backer) is important to us and the key to Spinpal’s success. Please don’t hesitate to contact us and share your questions or concerns.

The History

The first scientific investigations of the pendulum was around 1602 by Galileo Galilei.  Later, the pendulum clock was invented by Christian Huygens in 1658 and became the world's standard timekeeper, which was used in homes and offices for 270 years.  The pendulum clock was able to achieve accuracy of about one second per year before it was superseded as a time standard by quartz clocks in the 1930s.

Pendulums are also used in scientific instruments such as accelerometers and seismometers. Historically, they were used as gravimeters to measure the acceleration of gravity in geophysical surveys, and even as a standard of length.

The Process

The first prototype was used to test functionally and feasibility.  This prototype was also used to dial in the optimum pendulum mass and length ratios.

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The second prototype was water jetted out of aluminum plate and then anodized black.  This prototype was costly, too light, and was missing the simplicity I was looking for.


   

The third prototype was used to start testing a new base and single post design. This was a move in the right direction for a much cleaner look.

The fourth prototype was used to test a metal base.  I knew I wanted a heavier, more aesthetically pleasing base design.  I began testing the base footprint and weight.  I wanted to minimize both as much as possible.  The support post, eyelets, and connecting rods were also changed to add contrast between all the components and to reduce weight.   


   

The fifth prototype was used to test the smaller, more minimalist base.  This base was much lighter and had a more realistic footprint.  The base was still aluminum but was clear anodized instead of a mill finish.  

   

The sixth prototype was used to further test a smaller, more minimalist base.  This base was much heavier but had a smaller footprint.  I wanted to reduce the area taken up when placed on a desk or counter.

The seventh and final prototype had a base that ended up being a great balance between footprint and weight.  It also had the contrast and simplicity I was hoping for. 

The Design    

Base

Clear Anodized Aluminum Plate with Non-Slip Vinyl Pads

Support Rod

Black Anodized Aluminum Tube

Eyelets

Black 3D Printed ABS Plastic

Bearings

Extreme Performance SS / Ceramic Hybrid Bearing

Connecting Rods

Aluminum Tube

Hardware

Stainless Steel / Aluminum / Brass

LED Light (Included)

Press Fit Battery Powered LED Light (Long Exposure Photo Below)

Size

  • 13.5” Overall Height
  • 12.0” Swing Radius (24.0” Diameter)
  • 6.0” Width
  • 4.0” Depth

Total Weight

~2.0 lbs. (907 grams)

BackerKit

Spinpal is excited to announce that we will be using BackerKit to collect data and process pledges for fulfillment. Backerkit allows for a more straight forward and in-depth survey to streamline pledges / add-on items and speed up the shipping process. Once the project has been completed, surveys will be sent out to collect shipping addresses and to allow backers to add on components they desire. The landing page will unlock once the surveys have been sent.

Stretch Goals

  • Unlocked | 10K - Laser Engraved Serial Number and Name
  • Locked | 20K - Additional Eyelet Color Option
  • Locked | 30K - Black Anodized Stand Base Option

Timeline

  • Concept Design: November 2016
  • Finalize Design: February 2017
  • Launch Date: March 7th, 2017
  • Campaign Ends: May 6th, 2017 (60 days)
  • Receive Funds: May 22th, 2017
  • Ship Orders: June 2017 - July 2017

Shipping

Domestic and International shipping is available at every reward level. Additional funds may be requested once final shipping costs are calculated for specific locations. We will do our best to keep the cost of shipping as low as possible.

Risks and challenges

As an experienced product designer with knowledge of many manufacturing disciplines, including extensive 3D printing knowhow, you can be sure the overall project completion risk has been mitigated. Every possible step will be taken to ensure that all design requirements and deadlines are met, this is my top priority.

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Support this project

  1. Reward no longer available

    Pledge $55 or more About $55

    Super Early Bird - Spinpal DP Single

    Limited Super Early Bird Special

    You will receive one (1) hammer stamped limited edition (#1-10) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $55.00
    Retail: ~$100.00 ($45.00 / 45.00% discount)

    Includes:
    • Spinpal DP
    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
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  2. Reward no longer available

    Pledge $65 or more About $65

    Early Bird - Spinpal DP Single

    Limited Early Bird Special

    You will receive one (1) hammer stamped limited edition (#11-30) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $65.00
    Retail: ~$100.00 ($35.00 / 35.00% discount)

    Includes:
    • Spinpal DP
    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 20 backers
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  3. Select this reward

    Pledge $75 or more About $75

    Spinpal DP Single

    You will receive one (1) hammer stamped limited edition (#31-XXX) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $75.00
    Retail: ~$100.00 ($25.00 / 25.00% discount)

    Includes:
    • Spinpal DP
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    120 backers
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  4. Select this reward

    Pledge $145 or more About $145

    Spinpal DP Double

    You will receive two (2) hammer stamped limited edition (#31-XXX) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $72.50
    Retail: ~$200.00 ($55.00 / 27.50% discount)

    Includes:
    • Spinpal DP
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    Ships to Anywhere in the world
    8 backers
    $
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  5. Select this reward

    Pledge $210 or more About $210

    Spinpal DP Triple

    You will receive three (3) hammer stamped limited edition (#31-XXX) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $70.00
    Retail: ~$300.00 ($90.00 / 30.00% discount)

    Includes:
    • Spinpal DP
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    Ships to Anywhere in the world
    2 backers
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  6. Select this reward

    Pledge $325 or more About $325

    Spinpal DP Five

    You will receive five (5) hammer stamped limited edition (#31-XXX) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $65.00
    Retail: ~$500.00 ($175.00 / 35.00% discount)

    Includes:
    • Spinpal DP
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  7. Select this reward

    Pledge $600 or more About $600

    Spinpal DP Ten

    You will receive ten (10) hammer stamped limited edition (#31-XXX) Spinpal DP. Some assembly will be required, necessary tools and instructions will be provided.

    Unit Price: $60.00
    Retail: ~$1,000.00 ($400.00 / 40.00% discount)

    Includes:
    • 10× Spinpal DP
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Funding period

- (60 days)