Brian Log
Mon, May 27, 2013
Starting with User:Samthetechie's file File:Warehouse.skp I designed the Boom of the Backhoe. I included a 30 degree joint in order increase the depth and reach of the bucket. The half inch thick joint is two 8 inch wide plates welded together. The holes in the joint are standard 1 inch diameter. On the interior of the joint is an optional quarter inch thick Wedge. The wedge may fill in the ap between the 4 inch tubing and, if used, should be welded thereto in order to ensure maximum strength. If the joint needs to be made stronger more may be added. I also included a plate for attaching the hydraulic cylinder which will control the vertical movements of the Boom and Stick.
Regarding the Stick, the present configuration has the plates arranged to act as a fulcrum. This arrangement will allow the Stick to have a maximum range of motion. Further, the increased length of the Stick extending above the Boom increases the lever arm and thus reduces the force needed to be exerted by the hydraulic cylinder. This will increase the durability and lifespan of that cylinder.
Next item to be worked on will be the Bucket and its attachment to the Stick. The work can be found at File:Warehouse11.skp
Sat, May 25, 2013
Hey Brian, thanks for collaborating with User:Marcin and User:Samthetechie on the Backhoe today, can you write a few notes on your findings / approach for today. Also, you might find these new parts I uploaded helpful / interesting: File:Boom.skp and File:Stick.skp
Fri, May 17, 2013
Talked to Marcin about Backhoe Stick and Boom Concept Specification. Started work on the backhoe stick and boom. Made stock parts and did an assembly of the boom.
Links to Nickle Iron Battery (NiFe Battery)
Edison Patents
http://www.google.com/patents/US678722 http://www.google.com/patents/US692507
Helpful Youtube Videos
The author of the video "edsworkshop" has several videos from 1.0-1.15 on how to make a nickle iron battery. Below is the link to the first video.