I am new to the VEX forums and I appreciate all of the great posts and ideas everyone is putting up here. I am creating this post for all the other newbies out there like me who see all sorts of abbreviations and don’t really know what they mean. For example I see DR4B and I know it is some kind o…

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I know we switched to BO1 last season. Is that still the rule for this season? (not arguing the merits of either, just want to know the current rule).

As of now, yes. RCEF could still potentially change it for State or Worlds, but that’s a longshot.

The rules for a tournament are found in the game manual (around page 35 of the pdf, linked here for your convenience): https://link.vex.com/docs/vrc-tower-takeover/TowerTakeover-GameManual Specifically, the “BO1” rule is T13

Those drawings are incorrect. The one you have labeled “6 bar” is actually a type of 8 bar linkage, and the one you have labeled “5 bar” is a standard 6 bar. Edit: Also the “1 bar” is more formally known as a 2 bar.

I know what he has labeled as an “6 bar” is technically an 8 bar linkage but I think that “double 4 bar” is a bit more informative since an “8 bar” is usually referring to his “5-bar” but with another stage. Just like you wouldn’t call a mechanically linked “dr4b” an “8 bar”.

While I realize that these abbreviations and names are ubiquitous in the VEX community, I hope everyone realizes that outside of competitive robotics, these “linkage names” are not common or standard industry (or mechanical engineering) names. Even the most common mechanism, the “4-bar” is actuall…

Very true. I have tried to get some of our teams to absorb actual 4 Bar Linkage design for a few different things in the past, but none have really wanted to deal with that.

Most people know it by PROS, but it stands for Purdue Robotics Operating System. It is another coding platform for VEX. https://pros.cs.purdue.edu

Actually, that is no longer true. PROS quietly had a name change: [image] PROS vs VEXcode the name PROS is a recursive acronym: PROS Robot Operating System [image] PROS vs VEXcode we just didn’t want to deal with any hoops involved with continuing to use the Purdue name, not that we specif…

Abbreviations in Forums

VEX V5 General Discussion General Forum

Barin May 28, 2019, 8:02pm 13

Actually, that is no longer true. PROS quietly had a name change: