Creating robot chassis

Towards the end of last week, heat sincs and H-bridges came in.I also went to home depot to purchase more material for the robot chassis. 

1/4" washers (12 in each package) x 10 = 112 pcs.

3 threadless rod USS/Coarse stainless steel, 1/4"-20 x36"

1/16", 3/4"x36" thick angeled aluminum rod (for mounting tracks to base platforms)

Hex Nut course thread zinc plated 1/4"-20 (100 pcs.)

3 packages of #8-32x3/4" zinc machine screws (8 pcs) x 3= 24 pcs 

pencil compactor for measuring the cardboard out (if need be)

caliper for measuring components on the fly

krylon fusion for plastic, metal, wood, wiker, and more tan paint 

storage organizer for parts

Picture of these materials and more can be found below. 

The actual mock-up should be finished this week. I figured out how to print out the mock-ups in Google Sketch to scale, so all I need to do is print those out and mark my cardboard where I need to cut. Then if everything fits as planned, I use that to cut the plastic and etc. 

Another change in the 3d mockup

Increased length width of robot deck to 10". Overall the robot is 5" Height x 14" wide. Also added some dimensions that were not specified the last picture.

John and I bought some thick plastic sheets (Acrylic Sheets x2 for $13.50) at Home Depot today.

The motor controller's H-bridge power N-MOSFETS came in yesterday.




























We also got in the mail today the crazy motors from DC Planetary Gear Brush Motor- PK32kd3b2100-027. The spec sheet is below the picture of the motors.

Designing the Robot Chassis with Google Sketchup

Today, I spent the majority of the day learning Google Sketchup and making the parts and models that belong on the robot. However, I am running into a few mechanical considerations.

1) the camera is LARGER than I expected. I need to consider taking the camera out of the bubble and/or extending it from the base.

2) the Router is also LARGE. Where should I stick this thing? We also need room for sensors and a battery. Crap... I only have so many links for the car, so it will be more difficult to increase the length of the robot.

Too bad I am not a mechanical engineer...

I hope my team members can give me some suggestions on how to fix this issue of space.