1 / 6

Rope and Washer

Rope and Washer. History Has been used before, but has never cost $5 Other areas have struggled with issues surrounding durability – clients want it to last longer We do not think this will be an issue for IDE Myanmar. Our Process How to make the rope and washer pump cheaper:

ewan
Download Presentation

Rope and Washer

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Rope and Washer History Has been used before, but has never cost $5 Other areas have struggled with issues surrounding durability – clients want it to last longer We do not think this will be an issue for IDE Myanmar Our Process • How to make the rope and washer pump cheaper: • Could we use bamboo for the river pipe? • Could we use a soda bottle for the guide pulley? • Are there found materials for the main wheel? • Can it be a “rope and rope” pump? Potential Issues The rope stretches – does this matter? Sun deterioration – will farmers be willing to replace parts during the season? Can we make it foot rather than hand powered? What kind of cheap wheel can we use at the top?

  2. Diaphragm

  3. Plastic Pump Thermo Plastic Welding Injection Molding Blow Molding Can Prototype it here Reasonable fixed costs – high variable costs (labor) High tooling cost Can’t protoype it from Stanford Inner bore needs an angle Cheaper than injection Imprecise inner diameter

  4. NPV for “one-year” pump Cost of Pump = $8 Profit from Crop = $100 One Crop Two Crops $63.30 $109.95 Cost of Capital (per month) = 10% $43.23 $66.48 Cost of Capital (per month) = 20% Basic Economics Total addressable market size ~ 5 M Conservatively: 20% of market @ $43 NPV Social Impact = $43 M ! Will the pump get the farmers to the next stage? • Cost of tube well = $20 • Cost of metal pump = $15 • Cost of Frame = $10 • Acre of Land = $400

  5. Vulnerability – potential pitfalls

  6. Next Steps • Select single design (focus) • Plastic? • Prototype in multiple configurations (go broad one last time) • Deliver

More Related