Rope Maker

Venture Category: Robotics and fabrication

Community: Sensorica


  1. Design and prototype an open source, DIY rope making machine.

  2. Evaluate its performance.

  3. Dissemination of the device to local producers.


Fishing communities all around the world can turn recycled plastic into fishing nets and ropes.

Project requirements

The rope making machine design will represent a method for village-scale rope making of standard polypropylene (PP) rope from waste PP pellets/shreds, 16mm in diameter as long lines (at least 150-200m) and 7mm in diameter as short-lines (5 meter each). The design will represent an easily replicable device, built with stock components and minimal use of custom parts (unless they can be digitally fabricated with a RepRap class 3-D printer or CNC mill –e.g. limit to what is found in most fab labs and avoid high energy processes and a skilled machinist). The designers should seek to minimize cost and complexity while keeping throughput high (continuous if possible). The base design for the extruder -first stage - can use the Pearce group recyclebot designs.


Source code (CAD in native format and STL), full BOM (component, number, cost, and source), build instructions with pictures, operation/maintenance instructions, video of operation and prototype sent to the Project Sponsor.

Other conditions

The Project Sponsor would retain first academic publication rights (with Sensorica co-authors if wanted). At the time of academic paper submission full open source documentation released to the world.


Communication and coordination

Communication channels

Coordination tools


Open venture in NRP

Status: Started


  • Mechanical and electrical engineering

  • Outreach

  • Relations


click to open notes
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  • Created the environment and planning for the project.

  • We have crated an invoice for Sponsor.

  • We worked out the budget, which is coupled with the Leaves Blender project.

  • We have built an initial core team for this project. The project is open, in the future core team will de defined by pas contributions.


If you're new to the project see Onboarding document.


this project is budgeted and executed in parallel with the Leaves Blender project.


Stay tuned...

Documentation repository


  • Money: This is a financially sponsored project, you'll get paid in proportion to your contributions.

  • Entrepreneurial opportunity: This is an open source project, you can use the prototype and the business model that we will design around it to start a small family business.

  • Learning: This project is a great opportunity to experience and learn an open source hardware development methodology, to experience a highly participatory work culture, and learn about the technologies used in the project. You'll also be exposed to collaborative entrepreneurship and collaborative business models.

  • Exposure: Co-author one or more scientific papers that are planned to be written on this device and process.

  • Networking: Get to know people with various skills, some of which are versed in p2p economics and collaborative entrepreneurship.

It's up to YOU to extract some or all the above benefits :)


more on Governance page
VENTURES are COLLABORATIVE, TRANSPARENT (anyone has access to the information that they produce) and OPEN (anyone can participate). They only produce deliverables based on OPEN SOURCE technology VENTURES have a CUSTODIAN that represents them legally and acts as a trust for their tangible assets. VENTURES can have multiple EXCHANGE FIRMS, which are commercial entities that move products and services developed by VENTURES on the MARKET. EXCHANGE FIRMS oblige themselves by contract with the CUSTODIAN to share PROFIT with all contributors to VENTURES, from which they commercialize PRODUCTS.

Organizational context