Monday, March 11, 2019
Tuesday, March 5, 2019
GTT Testbed Programming Instructions
If you are from outside our district, requesting access does not work. All of my files are set to "shared" with anyone whom has the link, the videos are being blocked at the district level on both sides. If you have your teacher email me at cjohnson10@sandi.net, I will gladly share all of my files. PLEASE do not "request access" it does not do any good.
RobotC Intro - Part 1 - Getting Started
To watch this on YouTube - https://youtu.be/yVuhOIvt6o4
By the end of this video you should know how to:
Set up RobotC to use the VEX 2.0 Cortex
using Natural Language PLTW
Set the Compiler Target and Download the
Firmware to your VEX Cortex
RobotC Intro - Part 2 - Motor and Sensor Setup
To watch this on YouTube - https://youtu.be/cbQIB2w1UBs
By the end of this video you should know how to:
Open a PLTW Template and save it as VEX
Tested Practice XX
Use pseudocode to annotate your programs
Set up the GTT Testbed Configuration and apply
the motor and sensors
RobotC Intro - Part 3 - Programming Motors
To watch this on YouTube - https://youtu.be/PPpqXp4fQ-8
By the end of this video you should know how to:
Set up a motor with a start function, wait
function and stop function for it to work
On your own, you are challenged to:
Figure out how to turn on the right motor, left motor and
claw motor (forward and reverse)
RobotC Intro - Part 4 - Naming Motors and Turns
To watch this on YouTube - https://youtu.be/bEUmfTC_VCA
By the end of this video you should know how to:
Rename code in a program so you use the proper name
instead of the port number
Make your robot do a point turn and how to fix
your robot from turning
On your own, you are challenged to:
Use the untilBump function to start your
program
also not mentioned in the video, use the
untilBump function to stop your program
RobotC Intro - Part 5 - Potentiometer and Limit Switch (for summer camps we will skip the potentiometer - but the Limit Switch is very useful)
To watch this on YouTube - https://youtu.be/EHToqO9_oNE
By the end of this video you should know how to:
The potentiometer works
On your own, you are challenged to:
Use the untilPotentiometerLessThan function to
turn left
Use the untilPotentiometerGreaterThan function
to turn right
Use the untilTouch function along with the
limit switch to make the robot go in reverse
RobotC Intro - Part 6 - Solution to Potentiometer
To watch this on YouTube - https://youtu.be/_RJRtavYHuo
By the end of this video you should know how to:
What the solution to the potentiometer looks
like
On your own, you are challenged to turn on an LED after the
limit switch is touched
RobotC Intro - Part 7 - Line Tracker
To watch this on YouTube - https://youtu.be/xdB6MYIAt7k
By the end of this video you should know how to:
That it is important to always compile the
program and download it to the Cortex
That unless you tell the LED to turn off, it
will stay on until the battery goes dead
On your own, you are challenged to add a line sensor to shut
down the program
RobotC Intro - Part 8 - Last
To watch this on YouTube - https://youtu.be/Z8rrWEZW7Wg
Sunday, March 3, 2019
GTT Testbed Build Instructions
If you are from outside our district, requesting access does not work. All of my files are set to "shared" with anyone whom has the link, the videos are being blocked at the district level on both sides. If you have your teacher email me at cjohnson10@sandi.net, I will gladly share all of my files. PLEASE do not "request access" it does not do any good.
For the PDF
instructions - Please Click Here
VEX
Testbed 01 Cortex
To watch this on YouTube - https://youtu.be/0xFXPNxHH1A
By the end of this video you should know how to:
Attach the Vex Cortex to your base plate
using four 3/4" screws and KEPS nuts
VEX
Testbed 02 Bumpswitch
To watch this on YouTube - https://youtu.be/N-vioX8O6_U
By the end of this video you should know how to:
Attach the bump switch to your base plate
using two 1/2" screws and KEPS nuts
Please keep all twist ties during your
build to keep the wires from getting in the way
VEX
Testbed 03 Limitswitch
To watch this on YouTube - https://youtu.be/S1FjVZINoq4
By the end of this video you should know how to:
Attach the limit switch to your base
plate using two 1/2" screws and KEPS nuts
Tighten up the screws by hand just tight
enough so they are still able to be slid back and forth.
VEX
Testbed 04 Line Tracker
To watch this on YouTube - https://youtu.be/ecoT8h3MfRk
By the end of this video you should know how to:
Attach the line tracker to your base
plate using one 1/2" screw and a KEPS nut
VEX
Testbed 05 Potentiometer
To watch this on YouTube - https://youtu.be/QRFJE2Wi53Q
By the end of this video you should know how to:
Attach the potentiometer to your base
plate using two 3/4" screws and KEPS nuts
VEX Testbed 06 Potentiometer Gear and Axle (for summer camps we will skip the potentiometer - I left these instructions here for others to use)
To watch this on YouTube - https://youtu.be/9BwxKC1o7UI
By the end of this video you should know how to:
Attach a 2" axle, 36 -tooth gear and
a drive collar to your potentiometer
VEX Testbed 07 Battery Strap
(Please skip this step, it is not needed as your Testbed does not move)
To watch this on YouTube - https://youtu.be/lUngQW8ILqg
By the end of this video you should know how to:
Attach the battery strap to your base
plate using two 1/2" screws and KEPS nuts
VEX Testbed 08 Rail
To watch this on YouTube - https://youtu.be/8g3pCIWJSsI
By the end of this video you should know how to:
Attach flat bearings to the slotted angle
piece using two 3/4" screws and KEPS nuts each
VEX
Testbed 09 Motor Assemblies
To watch this on YouTube - https://youtu.be/E1hcyZ4dzgY
By the end of this video you should know how to:
Attach two motors to the rail you just
built using a 1/4" motor screw and a 1/2" motor screw, slide it
into the correct position so that it fits under the rail and then tighten
everything up with tools.
*** This uses different screws than those shown in the pdf
instructions ***
VEX
Testbed 10 Wheels
To watch this on YouTube - https://youtu.be/Ato9Z_78AH4
By the end of this video you should know how to:
Attach two wheels without using any drive
collars
*** This is different from the pdf instructions ***
VEX
Testbed 11 Clawmotor -
To watch this on YouTube - https://youtu.be/WC4GUBw69Co
By the end of this video you should know how to:
Add a motor to a claw and make your motor
open and close.
You may need to wiggle open the claw to
get the axle to slide into place.
*** This
is a different order of assembly from the pdf instructions ***
VEX
Testbed 12 Stand offs
To watch this on YouTube - https://youtu.be/0e81QgsZi9Y
By the end of this video you should know how to:
Attach two 2" standoffs to the
base plate using two 1/2" screws from underneath
VEX
Testbed 13 Attach Rail
To watch this on YouTube - https://youtu.be/LVN2b4qyTaA
By the end of this video you should know how to:
Attach the rail to the two 2"
standoffs you just added built using two 1/2" screws.
Then go back through the entire build to line
up the components and tighten all screws
VEX
Testbed 14 Electronics Hookups
To watch this on YouTube - https://youtu.be/QpioECHcEXc
By the end of this video you should know:
The difference between different components and
how to hook up all of the electronics.
VEX
Testbed 15 Powering Up
To watch this on YouTube - https://youtu.be/H-w9EQ3YCcU
Wednesday, February 27, 2019
6.1.5b DC Motor Modifications
If you are having trouble with your DC Motor, here are some modifications you might want to try to get it to work:
1) Level the arms. Take the 2 1/2 in. copper pieces and make sure they are at the same height
2) Straighten the ears. Make sure the ears on your armature loop are directly opposite of each other, centered and straight.
3) Sand the ears. To make the commutator, one ear of the armature loop needs to be sanded all of the way around, while the other is only sanded on one side.
4) Sand the arms. Make sure the contact point inside the loop of the arm and where the alligator leads connect are sanded until you can see the copper underneath the insulation.
If those do not work, try spinning the armature the other direction, switch the sides the ears of the armature loop are facing, OR switch the positive and negative leads.
1) Level the arms. Take the 2 1/2 in. copper pieces and make sure they are at the same height
2) Straighten the ears. Make sure the ears on your armature loop are directly opposite of each other, centered and straight.
3) Sand the ears. To make the commutator, one ear of the armature loop needs to be sanded all of the way around, while the other is only sanded on one side.
4) Sand the arms. Make sure the contact point inside the loop of the arm and where the alligator leads connect are sanded until you can see the copper underneath the insulation.
If those do not work, try spinning the armature the other direction, switch the sides the ears of the armature loop are facing, OR switch the positive and negative leads.
If the video above fails to load, try to watch it on YouTube at https://youtu.be/cj6--ZO5Ngo
Monday, February 25, 2019
Citizenship Self Assessment
Today in class, everyone will be filling out a Citizenship Self Assessment. We will be going over the instructions as a group but each student will fill out the Google Sheet as an individual.
While you are waiting for everyone else to get logged in, please make a copy of this Citizenship Rubric into your Google Drive. It does not have to be put into your GTT Turn in Folder as you will not be turning it in. It is simply a reference for you to use so that you can keep improving your citizenship grade in this class.
Sunday, February 24, 2019
6.1.5 DC Motor Construction
For today's lesson:
Step 1) Watch the video below about the lab we are going to do today
Step 1) Watch the video below about the lab we are going to do today
Step 2) Open up the worksheet - 6.1.5 DC Motor Construction and make a copy into your GTT Turn in folder.
Step 3) Follow the directions written in the worksheet and answer the questions as you go.
Step 3) Follow the directions written in the worksheet and answer the questions as you go.
Step 4) Submit your completed worksheet into Canvas for grading before the end of class Friday.
Every student makes one of these to take home.Step by step instruction video
If the video above fails to load, try watching it on YouTube at https://youtu.be/8DXNPM5b_AA
Subscribe to:
Posts (Atom)