So for the robot we are leaning towards C and C++. For the dashboard we are looking at java. We have touch display, Xbox controller or a generic input device.For our website we are using perl. there is some follow-up training this Saturday. We plan to prototype a touch screen system tuesday and PID training.We also plan for labveiw training on December 4th.

Rectangular
Bumpers Attached to Chasse with screws
Slot to put bumpers in with hook
2 wheeles in back pushing with one in front steering
Alluminum
square hollow supports
Zipties
C brackets
Triangle braces in corners
L brackets to hold guts
One pipe/spine supporting chasse
take off sides and replace with bumpers
Bumper surround 2/3 of robot
No bumper weight limit
Baltic britch for bumpers
Carbon fiberglass / can be combined / Around frame
SPARE PARTS!
2 Wheels in middle with drifters outside
6 wheels
Motorized coaster
Tight turning / 2 wheels in back with 2 wheels in fron-drifters
Mechanical Groups
Chasey
Motors/Elec,mech,programing
welding
lift mechanisum
Cycle time: Time to complete task, Time from rest to top to rest
Year events
2002-balls lower into white goal
2003-Lift boxes
2004-Place balls in goals / big ball LINEAR LIFT
2005-Tetra lifting and stacking
2006-Balls in goals
2007-Pool tubes
2008-Big Balls

Weight- More energy/more time

Checkout the new website for the Bullbots summer Lego camps http://camp.bullbots.org . This sub-domain was put in place to help promote the Bullbots fundraising camps. Sandra would like to get input from other team members about the design. She is talking about changing the main Bullbots website to the same design currently used on the camp website. Please let her know what you think. You can comment here on the blog or let her know at the next meeting.

Today we did some calculations to figure out RPM/RPS of the CIM motor with the 12:1 gear ratio and the 3:1 added on. We also found out our cycle time for the mast if we were to add it to our mast(without friction and gravity).

RPM= 4000 @ 30 amps
Gear ratio= 12:1
12:1= 90 amps 90 amps/ 30 amps = 3
lift mass= 6 revolutions > 12 seconds
66 rps/12 = 5.5rps 5.5rps/3 = 1.8rps 1.8 rps x 6= 10.8 second lift time

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Existing mast motor
1. Lifting first section max 8.5 amps. With 4 kg of weight 11 amps. With pull down cable disconnected without weight 9 amps.
2. Lifting first and second section max 9 amps. With 4 kg of weight 11 amps.
3. Lifting All max 13 amps. With 4 kg of weight 14 amps.

using weights to lift mast
1. First section 5.5 kg
2. First and second 12.25 kg
3. All sections 19 kg

yesterday we tested how much weight it took to lift the mast. We also did a few other things, here is our detailed check list.

1. Test how much weight it takes to lift the mast. *done*
2. Find a way to measure current. *done*
3. 2007 FIRST KoP mast motor. Need another? *done*
4. Test to find if Motor went bad. *still deciding
5. A. Set the robot on 2 tables with an opening under the chassis. Then unhook the pull down cable from the claw. Hook the 2 pull up cables together with a piece of material where we can hang weights on. Then we add the weight and lift the mast. *done*
B. i. Run the mast with the front cable on and measure the current running through the motor. *done*
ii. Run the mast without the front cable on and measure the current running through the motor. *done*
6. Test if CIM motor will work and at what speed.
7. Test if smaller window motors can do the same or better.
8. Test if planetary gearbox can do the work.

Tonight we had a pretty good turnout. The students tested the old mast motor connected to the mast, a CIM motor on the bench and how much weight it took to move the mast. I hope to see results posted soon from the students.

This blog was setup so team members and mentors can capture and share what happens within the BullBot club.


Happy blogging