VEX Catapult Construction Kit has a SKU of VEXCATPLT a product ID of VEXCATPLT and a Global Trade Item Number (GTIN) of 0807648042115 This VEX Catapult Construction Kit comes with everything you need to build your own working catapult. There are 2 balls included so once you've done constructing you can have fun playing with your creation. Vex Robotics brand. VEX Catapult Construction Kit is rated 0 out of 5 by 0 reviews. 0 is the minimum rating. VEX Catapult Construction Kit for the price of $29.00 in category at Officeworks https://www.officeworks.com.au http://www.facebook.com/officeworks http://twitter.com/officeworks http://www.instagram.com/officeworks http://www.youtube.com/user/officeworks

It took us one hour to build this set. It is listed as being a beginner skill level build that can take anywhere from one to two hours to complete, depending on your skill level. The instructions were picture-only instructions and were a little confusing as were the picture directions for how to use the catapult. Also, the knob fell off quite often, but reattaching it was easy.
In addition if someone has a 4/4/2 (four motor drive, four lift, two intake) setup then having 4 tanks on your robot for a backwards catapult is a lot of weight. The tanks aren't light so keeping your robot as lightweight as possible with only four motors on drive is essential. But then again team 1103 in Round Up had a rock solid robot that weighed nearly 20 lbs. (I believe he said this in a video somewhere, don't quote me on it) and had only 4 high speed motors on his drive. Very impressive!

Alright guys over the months I have seen countless catapult designs each with their perks and then theres some that are just plain disappointing. Theres the forward catapult, backward catapult, the full arm catapult, forward intake catapult, backwards intake catapult. There are several more I dont remember at the moment. Which catapult do you guys believe is best and why?
The positives to a front catapult is that you only need half of everything because the degrees of motion is basically half of what a backwards catapult is. I've only seen backwards catapults with 4 pistons and only front catapults with 2 pistons. Does that mean if someone gets a backwards catapult with 2 pistons a front catapult would only need one? :eek: Probably impossible if you're following the rules on pressure. The front catapult can also actually act as an assist to get big balls out quicker so you don't have to wait for intake to spit it out or if you can't get the ball out of your intake at all. I've found this to be helpful.
My 8 year old built it in less than 20 min without my help. I didn’t even know he opened it. I was doing laundry and next thing I knew we had a catapult at the kitchen table. Didn’t ask for help or anything, no extra pieces. Too simple but worth the price I guess. It was one of the cheapest options I could find. With our local team going to worlds competition again he wanted to see what VEX was all about.
This construction kit challenges you to build a fully functional VEX Robotic Catapult! Explore the technology behind some of the most influential inventions of our culture's Age of Innovation! Inspired by ancient Greek and Roman designs, this modern Catapult has a ratcheting winch that can control the distance projectiles are thrown. Crank the winch to its maximum tension, and you can hurl balls over 3 m (10 feet)! Teaches important STEM principles through hands on learning. Features two alternate builds for more robotic fun! Two balls included. Batteries not required. 8+ years.
My 8 year old built it in less than 20 min without my help. I didn’t even know he opened it. I was doing laundry and next thing I knew we had a catapult at the kitchen table. Didn’t ask for help or anything, no extra pieces. Too simple but worth the price I guess. It was one of the cheapest options I could find. With our local team going to worlds competition again he wanted to see what VEX was all about.
For our catapult design, we actually took inspiration from Aaron and 7090 in order to create the same degree of rotation as the forward catapults, but backwards. It was also designed to only catapult large balls, as many times it was more useful to keep the buckyball and only fling the large ball. Our season has ended until March, but we ended up not having enough space to have the actual deflection we wanted (60 degrees), and went with something more like 80 degrees, which was not optimal. To add to that, the trajectory was not tuned, so the ball would go much, much higher than we intended. As a result, we just decided to throw pistons at the problem (we had 5 single action pistons, equivalent to 4 double actions), to solve it quickly before our last competition. It worked well, but obviously not as well as we wanted it to.
In addition if someone has a 4/4/2 (four motor drive, four lift, two intake) setup then having 4 tanks on your robot for a backwards catapult is a lot of weight. The tanks aren't light so keeping your robot as lightweight as possible with only four motors on drive is essential. But then again team 1103 in Round Up had a rock solid robot that weighed nearly 20 lbs. (I believe he said this in a video somewhere, don't quote me on it) and had only 4 high speed motors on his drive. Very impressive!
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