I think a dr4b would be better. it can reach high tower and stack easily. it also eliminates the circle motion and the end will go vertically straight up and down. i haven’t read the rest of the thread but if you can just do a dr4b
We don’t have that much build experience.
Ah, if you don’t have too much experience a six bar is fine. there isn’t really a downside to having a six bar.
This is only my 2nd year, my teammate has experience but likes to cut corners.
In ohio, most robot aren’t done yet, I think I can do good with the 6 bar for this competition, but when we go to blue jackets, we might improve or change it.
Too bad there isn’t a step by step tutorial
Our 6 bar is too heavy, we are going to switch to the big gears and red cartages also loose some weight on the intakes.
if it is your arm u should use the big gears but if thats done rubberbands should fix your problems and dont do red if u dont have to it will slow u down
Red is usually necessary for lifts as its the only way to get enough torque to lift an arm
We going to do that… Wish us luck…
Not really. as long as it’s geared externally for 7:1 or 5:1 it should be fine. Especially this year when lifts are converging to only hold an intake and a cube, there isn’t really much need for red inserts unless you are using a heavier lift like a DR4B or Scissor lift.
I’d disagree with this. a 1:7 or 1:5 on 100 rpm is still decently fast, and has a good amount of torque.
1:7 on with a 100 rpm cartridge has less torque though. I think it’s better to make lifts as fast as possible, because speed is very important late season.
this is the highest torque you can get without using a compound gear ratio though…
When measuring torque you calculate output teeth / input teeth.
That actually depends on who you ask on this forum. We still haven’t come to a final conclusion
Edit: True for calculating torque. But when asked how a gear ratio is written, the forum users are divided
I always put my driver gear before my follower gear. so 1:7 would be 12 tooth gear as my driver, 84 tooth as my follower
I say 1:7 (input:output) because it makes more sense and sounds better but…
It’s technically output:input
always trust dr.google
This is not the best approach, because while most properties of a gear ratio are measured as out/in, speed is measured as in/out, so using one format could be confusing.