Welcome to V5!
I’m going to give you a list of resources that have really helped me throughout my years in V5 and explain them.
Starting off with the Sigbot’s Wiki - https://wiki.purduesigbots.com/
This, in my opinion, is hands-down the best resource for new students in V5. You mentioned you moved up from IQ, so you should already have a basic handling on team management and fundraising, so you might not need that section of the Wiki, but every inch of this website is crammed with helpful information. From building techniques, to coding and notebooking, and to drivetrain types, this Wiki has you covered.
Expanding on Drivetrains, here’s the Forum gearing catalogue: https://www.vexforum.com/t/catalogue-of-drive-gearings/109498
This topic in the Forum contains gear ratios and estimated speeds for all wheel sizes, motor speeds, and gear ratios. Use this as a resource to help you expand your knowlege, not for hole counting.
Similarly, here’s a Google sheet with slightly more in-depth drivetrain ratios and speeds: Drivetrain Spreadsheet
Finally, my big piece of advice is to CAD ahead. Get familiar with using a CAD software, (I use Fusion 360 as it has many resources for free), to CAD out your robot ahead of time, so you don’t waste time planning during the season, and beginning to build something, only to realize you don’t have the parts.
Hope this helps and best of luck! Feel free to reach out with any questions!
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