Shear Force FTC

Shear Force FTC

Shear Force FTC team. A rookie (2022-2023) season community team from St. Charles, MO. Team 21225.

Operating as usual

Husky Lens to Control Hub Wiring Tutorial FTC 10/22/2023

We are excited about using a Husky Lens this season. We have seen questions in forums and some solutions that seem overly complex. So here's a little video explaining how we connected our Husky Lens to our Control Hub. Hope it helps - if you have questions or need help - please reach out. FTC: Share and Learn FIRST Tech Challenge - Missouri/Kansas

Husky Lens to Control Hub Wiring Tutorial FTC How to connect a Husky Lens to a FTC Control Hub by re-pinning. No external wiring harness.


Proud to be part of Team REV! REV Robotics

Rounding out our FTC class of for the 2023-2024 season - Give a warm welcome to RoboScout Squad, Team 19367: ALIEN, Potential Energy, Shear Force FTC, and Hebron Robotics Booster Cub!

Our FRC cohort of will be revealed in the coming weeks. Stay tuned! 😎

Photos from Shear Force FTC's post 09/30/2023

We want these younger robotics students to be excited about the next stage of FIRST. So we let them drive two of our retired robots at the FLL kickoff today. Hopefully we’ll see these kids on future FIRST Tech Challenge - Missouri/Kansas teams!


We want to give a huge thank you to Economic Development Council of St. Charles Countyfor helping us get a space to store our things! This will for sure help us not have to take apart the field each practice! Thank you!

Photos from Shear Force FTC's post 09/13/2023

We got to meet some friendly folks with The Bev Roy Hope Foundation today, when we handed out some of our busy cubes and fidget devices. We also brought our favorite demo 'bot "Geraldine" with us and shared our FIRST Tech Challenge - Missouri/Kansas stories.

Photos from Duchesne High School's post 09/06/2023

We are happy to see that a local St. Charles high school, Duchesne High School is expanding its Robotics curriculum and is joining FIRST Tech Challenge - Missouri/Kansas in the upcoming year!

St. Charles County STEM


True Manufacturing Jobs El Tio Pepe O'Fallon Scotsman Coin and Jewelry Inventor Forge Maker Space Tapered Men's Grooming REA JET USA The Boeing Company Wells Fargo Edward Jones

Photos from Shear Force FTC's post 08/26/2023

Today was the Junior 500! 2 of our team members, Matthew and Alex, got the chance to race and performed very well! Both of them got in the finals, and Alex won 2nd place in the Challenger Division! It was a success, and we are very proud of both of them!

Photos from Shear Force FTC's post 08/25/2023

We are excited to race in the Junior 500 tomorrow. Our FIRST Tech Challenge - Missouri/Kansas team will be racing against other high school teams from across the St. Louis area tomorrow on the infield. Matthew and Alex are our two drivers who have practiced for the big race tomorrow. Let’s Go Shear Force!

Photos from Shear Force FTC's post 07/14/2023

Yesterday 3 members on our team had a blast participating in time trials for the WWT Raceway Jr 500!

Photos from Shear Force FTC's post 06/20/2023

The ladies of Shear Force spent a day learning about Boeing and careers in STEM at Young Women in Engineering Day Event Information. Thank You for having us!

Photos from FIRST in Missouri's post 06/14/2023

Check this out! First in Missouri has a big robot to lead all of our future little robots! :)

Photos from Shear Force FTC's post 06/14/2023

Shear Force is back in session! We kicked off our summer with 2 outreach events in 2 days! Friday we led discussions in a Impromtu STEM Scout Outreach Event! Then Saturday we participated in Boeing Family Day!

Photos from Shear Force FTC's post 04/24/2023

Happy post WORLD Championship Monday, FIRST world! I know our team is still humming the cup song, and still smiling. Hope you are too. 🙂 🙂 🙂 The matches were tough, as we played with/against the best teams in the world.

We had a great time in Houston. Finishing 9th in our division, and 34th overall is AWESOME! We learned a lot, and can’t wait to apply those lessons learned to next year’s challenge!

Shout out to our sponsors. Can’t have these amazing experiences without their generosity!
Boedges Family Farms, Tapered Men's Grooming POULIOT CHIROPRACTIC AND MASSAGE THERAPY CLINIC John Henry FosterLeonardo DRS, Inc.REA JET USASecure Data Technologies, Inc.Scotsman Coin and JewelryDekaInventor Forge Maker Space Riverside Sweets El Tio Pepe O'Fallon


Back in Missouri!

Record-Breaking Crowds Celebrate Youth Robotics Teams & STEM Innovation at FIRST® Championship in Houston 04/23/2023

50,000 people?!? No wonder we ran out of buttons!

Record-Breaking Crowds Celebrate Youth Robotics Teams & STEM Innovation at FIRST® Championship in Houston Record-Breaking Crowds Celebrate Youth Robotics Teams & STEM Innovation at FIRST® Championship in Houston More than 18,000 Students from 59 Countries Competed with Team-Built Robots and Showcased Innovation Skills with Support from Presenting Sponsor BAE Systems and Other Global Brands Event Celebr...

Photos from Shear Force FTC's post 04/22/2023

Some great photos we got from this past week at Worlds! We all had so much fun, and are so happy that we got to be apart of this amazing game. We had a great season, and while we may not have ended exactly where we wanted, we are so proud of our accomplishments. We ended in 9th place in division, and then 34th out of 192 teams!


We arrived in Houston - woohoo! Set up our pit, completed robot inspection and now checking things out in the garage of our house.

Photos from Shear Force FTC's post 04/18/2023

The team is on there way to Houston! Can’t wait to compete and meet all the other teams!


At State we had a couple of collisions during autonomous. We ran into our opponent’s robot while delivering to the high junction that is closest to the stack. So our software team has been busy again. They developed a route to use a further away, less popular high junction. Here’s a successful test run.

Photos from Shear Force FTC's post 03/22/2023

Tonight we hung our Inspire Award in our home. We’re so glad to be part of the Inventor Forge family.


FIRST Tech Challenge - Missouri/Kansas released the video of last weekend. Here is the 2023 MO/KS Final match and the State High Record. What a great way to end the State Championship!

First Updates Now FTC

Send Shear Force robotics to WORLDS!, organized by Stephanie Troesser 03/06/2023

Our support team is amazing! We are still overwhelmed and overjoyed about our double win and already we are being asked how folks can help get us to Houston! Well, here's the link -

Send Shear Force robotics to WORLDS!, organized by Stephanie Troesser Shear Force robotics is a community-based team out of St. Charles MO. We were… Stephanie Troesser needs your support for Send Shear Force robotics to WORLDS!


The winning moment!!!

FIRST in Missouri FIRST Tech Challenge - Missouri/Kansas

Photos from Shear Force FTC's post 03/05/2023

First place winning alliance captain. First place inspire. We are headed to WORLDS!!!!! FIRST Tech Challenge - Missouri/Kansas FIRST in MissouriFirst Updates Now FTC

Photos from FIRST in Missouri's post 03/04/2023

We’ve worked hard over the past year, all in preparation for today. Wish us luck!

Thank you sponsors for helping get us here.

Photos from Shear Force FTC's post 03/01/2023

The three ladies of Shear Force got to go to SLU yesterday for their Introduce a Girl to Engineering day. We got to learn about their amazing engineering program, but we also had a lot of conversation about how engineers make the world a better place.. thank you SLU, FIRST in Missouri and for the opportunity.

Photos from Shear Force FTC's post 02/17/2023

We've been using Onshape all season to design all of our custom made parts. We test fit them virtually before printing or cutting them in the real world. Well our Mechanical team took that to the next level and assembled our robot in OnShape! Check it out - First Updates Now FTC

Photos from Shear Force FTC's post 01/31/2023

Shear Force had a CRAZY regionals meet on Saturday. At one point we dropped from 1st in the league down to 15th!

Then we climbed back to finish in 7th. The 1st place team (Spaghettified) picked us as their 1st round draft pick. Then their robot broke (yikes!), and we carried them for a while in the playoffs.

The refs were still calculating the final score of the last match and the preliminary score was a difference of 1 point! The head ref hit complete…The screen announces our victory! The crowd erupts in chears! Then they quickly tell us… oops, that was a mistake, you lost! 😞

So then the team waited through about an hour of other awards getting distributed to finally learn we won the coveted “inspire award”. This award for those not familiar is sort of a best all around award on many levels of the FIRST program.

So…. After lots of ups and downs, a couple of ulcers, a little humbling, and a touch of groveling. We are STATEBOUND!!!!

Now we have to figure out how to avoid those penalties!!

FIRST in Missouri FIRST Tech Challenge - Missouri/Kansas


An interesting use of drones. This is a company in central Missouri and they are related to one of our sponsors - Troesser Farms. Cool stuff!

DJI Agras T40, the newest addition to the Agras lineup is here! The T40 has a list of new features increasing efficiency and precision.

Learn more and get a quote for your T40 and other drones in the Agras lineup at


THANK YOU! To everyone who came out and played Power Play with us at Christian High today! Thank you to the volunteers who helped things move along smoothly. It was also great to see some of our business sponsors there! We had Boedges Farms, Bayer, El Tio Pepe and Inventor Forge all there supporting us! Looking forward to Regionals! See you there!

St. Charles robotics team builds interactive boards to help Alzheimer’s patients 12/15/2022

This week the team handed off our busy boards to Alzheimer's patients. It was a great experience to learn from caregivers how busy boards can benefit those living with Alzheimer's. NEWS 4 picked up the story. Wouldn't be possible without our sponsors! Thank you to REA JET USA, Dan Troesser, Inventor Forge Maker Space, Boedges Family Farms, Bayer Secure Data Technologies, Inc., Scotsman Coin and Jewelry, Deka, Leonardo DRS, Inc., Tapered Men's Grooming, POULIOT CHIROPRACTIC AND MASSAGE THERAPY CLINIC, John Henry Foster, Riverside Sweets and FIRST Robotics and FIRST Tech Challenge - Missouri/Kansas FIRST in Missouri

St. Charles robotics team builds interactive boards to help Alzheimer’s patients A local robotics team of high schoolers is giving back to a vulnerable community, those who have Alzheimer’s disease.

Photos from FIRST Tech Challenge - Missouri/Kansas's post 12/11/2022

Yesterday was a LONG but GREAT day for Shear Force! We did a double header meet - meaning we ran 12 matches! We won 11 of them - our autonomous (think autopilot) was almost flawless... It was a great day for Lil' Gerry.

I could post pictures of dancing, laughing, collaborating, robot driving... all kinds of good stuff.

But I am going to post this one picture - the moment I was most proud of my team for. The Robot broke - badly.... two servo's had to be replaced, and they were in different spots of the arm mechanism.

Between matches 4 and 7, one servo was replaced. Then they ran match 7 by pushing cones around the field (and won?)! Then immediately back to the pits where they swapped out the second servo. They got the robot back together and threw it out for match 9, UNTESTED, with seconds to spare and it WORKED! The tension in the pit was of epic proportions. The TEAMWORK was amazing! But they did it! EVERYONE of them was engaged and they all rejoiced.


We had a signal sleeve recognition issue last weekend. We had used TensorFlow successfully before. But this years challenge required more precision and our TensorFlow solution failed us as soon as we encountered mediocre light conditions.

So we went back to the drawing board. We heard about Apriltags from the Cobalt Colts. We gave it a try and wholla! We can recognize the shape on our custom sleeve and park in the almost dark!!

I know it’s hard to see - but this video is of our robot, seeing the signal for position 1 and maneuvering there successfully - in almost dark conditions!!

On to bigger things now with this hurdle behind us. Thanks FTC 6547 Cobalt Colts!!!!


First meet of the season today with FIRST Tech Challenge - Missouri/Kansas. Had a great time playing the game. Learned a lot about the game strategy, driver controls and met some great teams! Planning out some robot upgrades, a lot of software upgrades, and looking forward to our next meet!

Photos from Shear Force FTC's post 11/16/2022

Team 21225 has been hard at work working on generating concepts and building our robot in preparation for the our first competition this Saturday, aswell as other competitons to come!

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Videos (show all)

This is DevBot running the planned route from MeepMeep.
This is the FTC Dashboard which shows the planned and actual route taken by DevBot.
This is the robot trajectory built in MeepMeep.  Allows the team to design autonomous routes for the game.





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