Uptake

Similar to the "Revolver" bot, Uptake uses two conveyor belts on either side to pull a pin up a less steep path to place in a claw in the back, that can hold up to 1 stack of 3. It is a little difficult to build.

Uptake generally uses a 2 motor 2:1 drivetrain gear ratio and a 2 motor (3:1 to 5:1) Intake. The intake usually uses 24T, 32T, or 40T sprockets. It uses pneumatics for a back claw; however, you can use a motor for it as well.

Resources:

Vex IQ Mix and Match 2623S V2 Conveyor Robot Reveal

Vex IQ Mix and Match Intake Reveal

Vex Iq Mix and Match V1 Conveyor Intake Test (4 Motors) #vexiq - YouTube

140 Points! VEX IQ Mix & Match Robot by Ben Lipper