Nice and simple design! We built and tested this design. This design only salvages one part, which would seem to make it the most expensive solution. Although it adds two parts, they are relatively simple fabricated parts so it won't cost much to produce. The bench assembly of this design is the easiest and takes less time than our original design. Overall, the simplicity, ease of assembly, angle adjustment capability, and the use of two shocks provides the best total solution with plenty of capacity.

Cost and part reuse: 2
Durable and force reduction: 1
Simple: 1
Comfort: 1

Great work! Very simple and cost effective. Haulz-All built a set of parts and tested the design. The force reduction was better than expected and is a cost effective solution that we may put into production. However, we will need additional design work to accommodate adjustable leg positions, and yet still be able to fold up the leg for transport.

Cost and part reuse: 1
Durable and force reduction: 2
Simple: 2
Comfort: 2

We like the simplicity of this design. It managed to salvage some parts, but could use a heavier shock. We will most likely build a set of parts to test for this design, as well.

Cost and part reuse: 3
Durable and force reduction: 4
Simple: 4
Comfort: 3

This is an excellent, cost-effective design concept with simple parts. Since most customers wear gloves, we are concerned about how easy it will be to unlock and deploy from a stowed position. We are concerned about the durability of the wire parts and would like greater force reduction. We may still try to build a sample to test this one, too. Check for updates.

Cost and part reuse: 4
Durable and force reduction: 3
Simple: 6
Comfort: 4

This is a very good design that shows promise. It doesn't solve the force issue to our satisfaction. We want to build and test this design before we go into full scale production.

Cost and part reuse: 6
Durable and force reduction: 7
Simple: 3
Comfort: 7

We love how compact this design is! However more parts to fabricate and bench assembly would definitely take longer. It would be great to see how to add additional arm positions and better force reduction.

Cost and part reuse: 5
Durable and force reduction: 5
Simple: 10
Comfort: 5

We like that this solution was explained so thoroughly and showed a significant reduction in force. Good design, but concerned about the cost and durability of the knuckle.

Cost and part reuse: 8
Durable and force reduction: 6
Simple: 7
Comfort: 9

We really like that almost all of the original parts are salvaged. Cool concept, but we could not find a cost-effective way to machine or cut the hooked slot in the back part of the leg. It is not clear how it folds up, or sure how it works. It would be great to see an explanation on those points and details on force reduction.

Cost and part reuse: 9
Durable and force reduction: 10
Simple: 8
Comfort: 8

We like the simplicity and love that FEA was done on the parts. Again, we are not sure how easily it would fold up. It'd be nice to see a rendering or animation of that.

Cost and part reuse: 10
Durable and force reduction: 9
Simple: 9
Comfort: 10