Wednesday, February 19, 2014

CAD drawings complete

We are excited to announce that our CAD drawings are complete!

You can see that our trailer is going to look great after it is cut, bent, machined, welded, painted, and put together!



Wednesday, February 5, 2014

More Features Finalized

When choosing a material for our trailer we first considered our maximum load requirement, followed by our weight requirement, followed by material availability and cost analysis.

Material Yield Strength (psi) Density (lbs/in^3) Price 1ft length, 0.083 wall thickness, 1.25 inch O.D. For 20ft
6061 T6 Aluminum Alloy  40,000 0.0975 $15.21 $304.20
304 Stainless Steel 25,000 0.288 $32.33 $646.60
316 Stainless Steel (Super Corrosion Resistant) 30,000 0.288 $31.00 $620.00
4130 Cromoly Alloy Steel (Easy Weld) 65,000 0.284 $11.53 $230.60

With the second to highest yield strength, lowest density (and therefore product weight), and low price point, we chose the 6061 T6 Aluminum Alloy which also happens to be extremely available partially because of the aircraft industry.

We got together and finalized  the trailers dimensions. These dimensions are made to carry a large load while still retaining the agility to safley navigate on single track trails as well as bike lanes. Our dimensions are: 63" Length x 19.5" Width x 16" Height with a clearance of 6" from the ground.

We also looked in to power generation. Our options include rotational energy, solar energy, and possibly the use of miniature wind turbines for wind energy. More on power generation to come soon!

Lastly, we recently found shock absorbers for our trailer and put in an order for two. They should arrive soon!