Monday, December 8, 2008

Starting R2's Brain



R2,s brain is in the beginning stages. The main-frame is the AMD64 bit Opteron computer, software and O/S has been loaded, in this case a Berkely California version of UNIX, NET-BSD 4.0. I have chose 2 Z-world Rabbit semiconductor processors to interface the computer to motor controls. 1 Rabbit 2600 with Ethernet for computer interface, and a rabbit 2000 for motor control. Each rabbit processor has multiple digital I/O ports, and 4 serial-232 ports. The UNIX O/S is set at 4 User runlevels. the "NEURON" run-level is the superuser-god run-level. Run-level maintenance uses the same permission and command-line mode, but has home folder overwritable by the neuron user run level. User Run-Level "Halcyon" has limited maintenance functions, and "OPS" user actually is enabled to receive digital I/O signals as well as RS-232 input from the Rabbit Microprocessors. OPS user mode ensures an isolated operating mode that cannot affect other user runlevels due to limited system permissions.
Here is the AMD OPTERON, both Rabbit Microprocessors connected with the Flash Load cables and the Process Tree (TOP) running on the UNIX O/S

Monday, October 6, 2008

Example #2, door construction


Here is a larger door. The aluminum angle is riveted to the hinge side back of the door. The rows of rivets are counter sunk within one centimeter from the edge of the door. This method will allow the outer skin layer to cover the rivets, Use a good quality contact cement on both the door and vinyl outer skin, allow to dry, then press together.
The result will be a great looking, functional and solid door.

Sunday, October 5, 2008

Door fitted and finished


..here you can see how the door looks after being fitted with the outer skin made from a vertical blind... I set in into the utility arm bay to see how it looks...

Saturday, October 4, 2008

Assembling the equipment bay doors



The doors are made as follows:
sand all edges of the door panel, then cut 1/4" aluminum angle to length of each door. on the hinge side, clamp the angle 2 millimeters from the inside edge.
drill 1/8" inch holes down the angle, and through the PVC door. Next, using a large drill bit, carefully counter-sink the hole on the outside of the panel, use aluminum countersink pull-rivets to fasten the angle to the door. The angle will be used later to attach the pushrod horn and hinges for door actuation.

Cutting out more holes




a quick shot of the progress on the body skin. the holes being cut out for more aluminum parts and "droid hardware"

Back after a long break



Moving took a lot of work and getting settled meant I had to take a break from building R2D2...The project is back in business now, in the next pic, is the hand made aluminum coin slot for the front of the droid...It is made very easily from thin aluminum and glued to the skin.

Saturday, June 21, 2008

CANNOT POST PROGRESS THIS WEEK....


I cannot post any progress this week because R2 is in a box packed away under many moving boxes.
I bought a house in Lake Havasu City and the moving is a very big project. Although it's only three hours drive from here, it is a real pain in the neck. R2 will have a large garage to be assembled in, and the kitchen table will not look like a mess, VIVA LHCAZ!