Okay, that makes more sense, thank you! also do you have to use pneumatics made/sold by vex, or can you buy a similar one online?
All questions regarding legality can be answered in the game manual:
https://content.vexrobotics.com/docs/2022-2023/vrc-spin-up/VRC-SpinUp-Game-Manual-2.2.pdf
Use vex sold pneumatics but catapults can definitely be made without pneumatics
Okay big update, robot is fully assembled, and we got to full testing yesterday, turns out some unseen issues were found, (compression, other random things) but we already got to work this morning. intake has been given a little modification to work better with our steep intake ramp, and it works much better. our string shooters arenāt doing exactly what we thought would happen due to previous testing, and we need to mod those a little to be more, violent, but in a safe way of course.
when it comes to drivetrain and color roller those work absolutely perfectly.
as much as I hate to say it, cata is having the most issues and itās just relatively jank which disappoints us, but itās our fault and thereās no one to blame but us.
wish us luck as we have about a week and a half until our first comp. we still donāt have auton
Iām not worried about it this year tho as Iāve have about 3.5 years of programming under my belt, and have almost perfected our strategy for auton programming.
otherwise, we (once again) wish everyone luck in spin up!
Whatās the advantage of having a steep intake ramp and steep disc loading well/bucket?
no advantage really, its just what fit our design constraints.
Can you show me some pictures of your robot? Weāre gonna build a catapult and just want a reference, we cant find any good pictures of spin up catapults. A picture of the intake and catapult mechanism would really help us.
thereās CAD files wayyyy above for a reference. using those pictures should give you the ideas youre looking for. also there are plenty of catapults that are referenced on youtube. big ones being 3759x, 6627a, 248c, 229v⦠just to name a few
edit: I canāt believe I forgot 80001B and 1569A. huge starters of cata gang, that YouTube video even holds the precious comment of āif a cata bot wins worlds I will eat a spin up discā
Do you have any tips for finding the right amount of teeth to shave off the slip gear?
take the time thatās necessary, first things first, find the launch angle that scores from where you want on the field, this includes distance, height, and consistency. then, introduce your gear, and shave groups of teeth til it starts getting closer and closer to where you want it to release, then start shaving 1 tooth off at a time. itās really just putting the time that it requires into it.
How many teeth did you shave and how many teeth did that motor have?
itās a 1:3:5 ratio. teeth shaven depends on your design
Oh okay and one more question, why do you have a 12T gear (i guess) connected to the shaved gear, which is connected to another bigger gear? I understand how catapults work but just wanted to know why you wouldnāt connect the motor to the shaved gear.
The 12 tooth is the powered gear, and itās not directly connected to the shaved gear, thereās a non shaved gear that the 12t is connected to.
it went a little rough actually. we went undefeated for our first 3 quals, won the 4th point wise but got dqāed because I shot endgame outside of the field, no one was injured thankfully, and lost the 5th qual. landed ourselves in 12th seed, ( we were in between 5th and 7th until the last 2 quals) got picked by 3rd seed, and an unseen issue with our catapult caused us to have an upset and lost in the quarter finals. overall, it was a good learning experience for this robot, and we have about 2 pages of notes we took for our own robot containing possible improvements, strategy changes, inconsistencies, and things that just need to be totally redesigned. Iām disappointed as we walked in with quite a lot of confidence and I felt very good with how the robot would perform, so when things started to go totally wrong it was frustrating. but thereās no one to blame but us, we just need to improve.
Edit: forgot to mention we set the high score match of the comp at 143-34.