That is a really cool design, but I was wondering where I can find those flat pieces(the beam part) that lift up the arm. If you would let me know that would be great!
@@quinn.mcginley lol we can use linear slides, just not as good quality as what FTC teams get to use (even with VEX Pro parts being open for use by VEXU teams)
If you search up double reverse four bar (DR4B) you should get some good resources, it consists of 2 parallel 4 bar linkages that are connected with 1:1 gears at the joint, so they are forced to rotate by the same angle and the net motion is perfectly vertical as a result. On this robot the bottom 4 bar set was driven by another linkage that was powered by the input motor. You can also see the pink rubber bands I used to cancel out most of the weight, which is why the motor could be geared faster and the top speed of the lift is relatively high compared to its acceleration.
Steven found his password after 2 years
Nice vid. I like how you tried to convince us Bailey does not drive. It was a good try.
thank you Steven, very cool
banger
insane
That is a really cool design, but I was wondering where I can find those flat pieces(the beam part) that lift up the arm. If you would let me know that would be great!
“DR4B > Slides”
There’s a reason DR4Bs are more popular in VRC and VEXU
bc they can't have linear slides lmao
@@quinn.mcginley lol we can use linear slides, just not as good quality as what FTC teams get to use (even with VEX Pro parts being open for use by VEXU teams)
I think slides are very good for power play
bread👍
Could you please explain how that lifting system works in-depth?
If you search up double reverse four bar (DR4B) you should get some good resources, it consists of 2 parallel 4 bar linkages that are connected with 1:1 gears at the joint, so they are forced to rotate by the same angle and the net motion is perfectly vertical as a result. On this robot the bottom 4 bar set was driven by another linkage that was powered by the input motor. You can also see the pink rubber bands I used to cancel out most of the weight, which is why the motor could be geared faster and the top speed of the lift is relatively high compared to its acceleration.
How did you get your rev 4 bar so fast
not me copying this design but with 8 motor swerve