Reference Resources PDF Print E-mail
Written by The Cougars   
Sunday, 28 September 2014 05:25

HiTechnic & Matrix Controllers

FTC Motors

Build A Better Bot Workshops

Shop References
(courtesy of Bernez's Knifemaking Info Pages)

 

Attachments:
Download this file (AndyMark am-2964 NeveRest40.PDF)AndyMark am-2964 NeveRest40.PDF[ ]93 Kb01/10/14 08:02
Download this file (FTC Workshop - content - final.pptx)Build A Better Bot workshop[ ]9895 Kb25/10/14 18:43
Download this file (HiTechnic-Motor-Controller-Specification-v1.4.pdf)HiTechnic Motor Controller brief v1.4[ ]155 Kb10/10/14 13:16
Download this file (hitechnic_motor_controller_-_brief_v1.3.pdf)HiTechnic Motor Controller brief v1.3[ ]194 Kb10/10/14 13:16
Download this file (hitechnic_servo_controller_-_brief_v1.2.pdf)HiTechnic Servo Controller brief[ ]168 Kb01/10/14 07:18
Download this file (MATRIX-Controller-Specification-v1.2.pdf)MATRIX Motor Controller Specification[ ]165 Kb09/10/14 09:18
Download this file (MATRIX_HTMotor_Spec_v2.pdf)MATRIX HT-Motor[ ]250 Kb02/10/14 08:53
Download this file (MATRIX_Motor_Spec_v2.pdf)MATRIX Motor[ ]245 Kb02/10/14 08:52
Download this file (tap_and_drill_chart_-_english.pdf)Tap & Drill Chart - English sizes[ ]115 Kb01/10/14 08:14
Download this file (Tetrix_DC_Motor_V1.pdf)Tetrix DC Motor[ ]122 Kb01/10/14 08:01
Download this file (Tetrix_DC_Motor_V2.pdf)Tetrix DC Motor V2[ ]1983 Kb01/10/14 08:02
Last Updated on Thursday, 30 October 2014 13:53
 
Servo Stall Currents PDF Print E-mail
Written by Evan Hollins   
Tuesday, 30 September 2014 17:23

A big rule change this year added the ability to use as big of a servo as possible while still staying under 5 amps per servo controller at stall. Unfortunately, many of the servos we commonly use didn't have documented stall currents. To find these, we contacted ServoCity™ and asked them what to do. They were able to talk to HiTec© and retrieve stall currents for many of the servos that they make. Here they are in a table shown below. 

We would like to thank ServoCity and HiTec for helping not just us but all of FTC! 

For Analog Servos:

SERVO

 

STALL CURRENT @ 4.8V

STALL CURRENT @ 6V

    

HS-35

 

360mA

430mA

HS-40

 

460mA

580mA

HS-45

 

440mA

 

HS-53

 

440mA

550mA

HS-55

 

440mA

550mA

HS-65

 

960mA

1200mA

HS-70

 

960mA

1250mA

HS-81/82

 

1450mA

1800mA

HS-311

 

700mA

800mA

HS-322

 

700mA

800mA

HS-485

 

1000mA

1200mA

HS-625

 

1600mA

2000mA

HS-645

 

1600mA

2000mA

HS-755

 

1500mA

1800mA

HS-765

 

1500mA

1800mA

HS-785

 

1500mA

1800mA

HS-805

 

4800mA

6000mA

HS-1425CR

 

640mA

800mA

 

 For Digital Servos: 

SERVO

 

STALL CURRENT @ 4.8V

STALL CURRENT @ 6V

HS-5035

 

360mA

430mA

HS-5055

 

500mA

700mA

HS-5065

 

960mA

1200mA

HS-5070

 

1000mA

1300mA

HS-5085

 

1700mA

2150mA

HS-5087

  

1450mA

HS-5485

 

1000mA

1200mA

HS-5495/96

 

1200mA

1400mA

HS-5565

  

2100mA

HS-5585

  

2100mA

HS-5625/45

  

2100mA

HS-5665/85

  

2100mA

HS-7235/45

  

1300mA

Attachments:
Download this file (2013_HRU_ServoMat_2.pdf)HiTec Servo Product Table[ ]3531 Kb01/10/14 07:22
Last Updated on Tuesday, 30 September 2014 21:29
 
World Championship Update PDF Print E-mail
Written by Joey   
Tuesday, 22 April 2014 22:17

We have just arrived in St. Louis, pulling up right in front of the NASA trailer! Wednesday is load in and judging, and Thursday, Friday, and Saturday are matches. Looking forward to seeing all of our friends from around the world and playing robots! We are in the Edison Division (will probably be listed as division 2 on the live stream page).

Live streams to all of the FTC events will be posted here.

 http://www3.usfirst.org/roboticsprograms/ftc/ftclive

Good luck to everyone competing this week! 

 

Last Updated on Friday, 10 October 2014 16:50
 
Build a Better Bot Workshop with Patronum Bots PDF Print E-mail
Written by The Cougars   
Wednesday, 18 September 2013 08:33

On August 31st we got together with the Patronum Bots at their home base in East Troy, Wisconsin to put on our Build a Better Bot workshop. It was an all day event, and 12 teams attended, coming from Wisconsin and surrounding states. Throughout the day, we discussed topics such as game and robot analysis, mechanical and wiring practices, and static electricity. Along with topics about the robot, we also went over scouting and showed teams how we pick teams at tournaments. Near the end of the day, we held an “open work time” with several stations of hands-on activities. These included double drilling channel, creating static spray, switching from tamiya connections to anderson powerpoles, and making static detectors.

Check out the videos in the Build a Better Bot workshop playlist created by the Patronum Bots. 

 

 

Attachments:
Download this file (FTC Workshop Wisconsin.pptx)FTC Workshop Wisconsin.pptx[The slide deck from our Build a Better Bot workshop, August 31 2013, in East Troy WI]96876 Kb13/09/13 08:38
Last Updated on Monday, 07 October 2013 07:48
 
Build a Better Bot workshop handouts & useful info PDF Print E-mail
Written by Jamie Diamond   
Monday, 16 September 2013 22:31

Attachments:
Download this file (HiTechnic Motor Controller Brief v1.3.pdf)HiTechnic Motor Controller Brief v1.3.pdf[ ]194 Kb16/09/13 22:36
Download this file (HiTechnic Servo Controller Brief v1.2.pdf)HiTechnic Servo Controller Brief v1.2.pdf[ ]168 Kb16/09/13 22:36
Download this file (HiTechnic Servo Controller Power Limits.pdf)HiTechnic Servo Controller Power Limits.pdf[ ]115 Kb16/09/13 22:36
Download this file (HS-485HB Servo - A.pdf)HS-485HB Servo - A.pdf[ ]182 Kb16/09/13 22:37
Download this file (HS-485HB Servo - B.pdf)HS-485HB Servo - B.pdf[ ]829 Kb16/09/13 22:41
Download this file (Motor Power Chart.pdf)Motor Power Chart.pdf[ ]29 Kb16/09/13 22:37
Download this file (TETRIX DC Motor Specs.pdf)TETRIX DC Motor Specs.pdf[ ]122 Kb16/09/13 22:37
Last Updated on Monday, 16 September 2013 22:41
 
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FTC Blog

FIRST Tech Challenge
The official FTC Blog
  • What to expect at a FIRST Tech Challenge event
    FIRST Tech Challenge season is here and now! Teams are building, programing, performing outreach, fundraising, and gearing up for an exciting event just around the corner. For many of our teams, this may be their first event. For Rookies (and even Veteran teams looking for a reminder) it is highly recommended to check out the Preparing for Competition Resources Page. This resource goes into great detail on:

    ·         Competition Preparation (Review our "How to Prep for and Event" article)
    ·         Inspection Process
    ·         Judging Process



    However, as most experience event goers would say, "You truly will not understand until you go to your first, FIRST Tech Challenge event." In an effort to paint a better picture, here are some key areas and timelines most** events will cover.

    ·         Set-up, Pit Displays - Events can range from a single to multi-day extravaganzas. In each of these, what brings color and energy to the event are the teams themselves. Teams not only bring  the gear and tools they will need to compete during the event, but also a Pit Display that will show off their Team Spirit. Pit Displays vary in complexity, but must be contained within the 10x10x10 ft (3.048x3.048x3.048 m) of their Pit. NOTE: Pit size is determined by the event's venue. Check with your hosts to make sure what you have will fit into the size allotted, as some venues may have reduced pit sizes to accommodate the number of teams. Being mindful and gracious regarding space (especially space restrictions) help facilitate the spirit of FIRST Community.

    Set up starts early, so make sure you note when you are allowed in the Pits to get set up and ready for the day. For some events, set-up can start the night before. If you are able to, take advantage of this early set-up time so you can start your day with everything already in place.
     


    ·         Inspection: Robot and Field - Before any team is able to actually compete in an event (at any level) inspection of the Robot and both its hardware as well as software must be conducted by Certified Volunteers. Make sure to your entire time has read Game Manual I for Robot and Tournament rules. To learn more about the role of Robot Inspector and review the Robot Inspector Checklist (what they are exactly looking for), check out our Volunteer Resources Page.

    ·         Judging - Judging occurs first thing in the morning at most events. Make sure you are aware of both your Inspection and Judge Interview times (as they may occur in a different order depending on the event). These roughly 15 minute interviews are when teams have their best opportunity to present their Robot, their team, their outreach efforts, and their team's journey throughout the season. This is often presented as a 10 minute presentation, with the Robot being present so teams can highlight what failed, what worked, and how they approached this year's challenge. Check out the Team Judging Self-Reflection Sheet when practicing for the interview. Make a note, Judges observe team's throughout the day, both asking follow-up questions in the Pits as well as observing Robot performance on the field and a team's Gracious Professionalism throughout the day.

    ·         Opening Ceremonies - Once all the Inspection and Judging Interviews have finished, Opening Ceremonies for the event occur. This is a grand start to the day, where the audience learns more about the challenge, we introduce our judges, volunteers and special guest speakers, and launch our first Qualifying Match.

    ·         Qualifying Matches - Teams compete throughout the day on alliances made up of another team against another alliance of two teams. These teams consist of two student drivers and a coach (who may be either an adult or fellow student). The alliances they compete with and against change throughout the day, giving opportunity for teams to learn about the strengths and weakness of other teams. Qualifying Points (QP) and Ranking Points (RP) are earned to determine team's ranks for Alliance Selection. Learn the details regarding game play and how QP and RP's are used for Alliance Selection in Game Manual 1. 

    ·         Alliance Selection - Depending on the size of the event, the top four to eight FIRST Tech Challenge Teams of the event, ranked using QP and RP points, will select their Alliance Partners for the Elimination Matches. 

    ·         Elimination Matches - These matches happen after Alliance Selection and between the top teams at the event. This determines which two alliances will compete in the Finals.

    ·         Finals - The top two alliances, as determined from the Elimination Matches, compete for best 2 out of 3 matches to find the overall Winning Alliance of the event.

    ·         Closing Ceremonies - The day finishes with a Closing Ceremony of the event. Here, the Winning, Finalist Alliances as well as all Judged Awards are recognized. Often times, if this an event where team's advance from, those teams are also announced.

    This is just a highlight of what to expect at an event. The excitement, energy and  Other than attending your very first event, look to see if you and your team could potentially volunteer at an earlier event. Consider talking to nearby teams or reaching out through Social Media. Regardless of where you look to help better prepare for you event, we wish you the best of luck at all your events to come!



    **This represents what happens at most events in FIRST Tech Challenge. In the League Model of play, meets are held, where teams must participate at least three meet events before attending the League Championship (which follows the above outline). The meets are game play only, with no Judged Award component. Teams' Qualifying and Ranking points are carried with them throughout their League Meets and best ten matches are used to determine ranking for the League Championship.