Amos Winter

Someone is shy

Amos hasn't completed a profile. Should we look for some other people?

Comments & conversations

Noface
Amos Winter
Posted almost 2 years ago
Amos Winter: The cheap all-terrain wheelchair
Thank you for the comment Emily. Many of the organizations with which we work give away wheelchairs or sell them at heavily subsidized prices. They do this because many people with disabilities, particularly in the developing world, cannot afford the price of a wheelchair. We made sure to price the LFC so it was comparable to other assistive devices that are distributed in these markets, so funders could just as easily distribute the LFC as other wheelchairs. -Amos
Noface
Amos Winter
Posted almost 2 years ago
Amos Winter: The cheap all-terrain wheelchair
Thank you for the very good points Joy. We recognize that there are going to be different markets within the US and other "rich" countries, and that many wheelchair users will be able to afford an expensive version of the LFC. The focus of one of my graduate student's masters thesis is to identify the correct market(s) for the US version of the LFC and then tune the technology to meet that market. We are very aware that some customers may want a very high-end version of the chair, while others may want something closer to the developing world version. We are working on answering these questions in order to provide the best versions of the LFC to different markets around the world. To answer your second question, the reason we don't make the LFC design open-source is to ensure quality of the product.
Noface
Amos Winter
Posted almost 2 years ago
Amos Winter: The cheap all-terrain wheelchair
Thanks for the great suggestion Piotr. We are exploring different branding depending on the country/culture the LFC is used. For example, the nickname for our chair in Guatemala is "El torito todo terreno", which means the little bull that can travel on all terrains :) -Amos
Noface
Amos Winter
Posted almost 2 years ago
Amos Winter: The cheap all-terrain wheelchair
Thank you for the thoughtful comment Don. The lever is placed where it is to maximize change in mechanical advantage when the user grasps the lever at different points. To get an effective high gear, the user has to grasp near the pivot; placing the pivot near the back of the chair would lengthen the effective lever length when the user grasps it at the lowest possible point. This would reduce the range in mechanical advantage. We are able to achieve a 3X change in mechanical advantage because the effective lever length when the user grasps at the lowest point (approx. 12cm) is one-third the effective lever length when the user grasps the end of the lever (approx. 36cm). -Amos