Hey guys I was just wondering…
What’s the BEST way to attach a 6bar to a tower?
-How would it create less stress on the gears and motor?
-Would this 6 Bar design even be good for Sack Attack?
I would love feedback PLUS Pictures if you have your own design!
Thanks Guys
I’m trying to figure out like the best gear ratio to use when trying to attach my 6 Bar to the robot. Im kinda new to the idea of a 6 bar so I 'm trying to understand how to make an efficient way to reach the 30" goal…
We are mostly likely using a chain bar. http://www.aura.org.nz/archives/991
because of the 180 degree capability and it has all the benefits of an extremely light 6 bar. It is also really easy to add an angle change.
I think 2,4,6,8 bars will be the most common type of lift because people are going to want to have that option of going to the high goal and they’re generally easy to build(once you build one, you can pretty easily switch in between them all), but I personally don’t plan on using them.
(Click on these two pictures to look at a bigger image if needed)
AURA also did a very good job at explaining how to build a 6-Bar, and information about it. Here is the link to that: http://www.aura.org.nz/archives/672
The gear ratio one uses on an arm depends on 2 things:
The length of the arm
The weight of the load you’re lifting
For Gateway, teams with a 6-object capacity generally used 7:1 or 5:1, with lots of elastic to help lifting. Barrels and Sacks weigh about the same, so if you’re lifting a max of about 6 sacks, 7:1 or a compound 9:1 are good gear ratios to use. If you plan to lift more sacks than that, you may want to go into heavier compound gear ratios like 21:1 or 25:1.