Who follows the 1" per rev. gearing rule (rollout ratio)? - RC-Monster Forums

simplechamp · 01:55 AM

I hadn't thought of it that way, where it would assume 1:1 and give you gearing as an output. That's a really good idea.

I was thinking of it basically just spitting out your rollout on the speed calc page along with the other calculated values (which you could do too, but I like the ideas you have as they take away the task of plugging in a bunch of combos trying to get to 1:1). It would still be nice to have the rollout shown on the speed calc page in the results, because you might not always want it to be exactly 1:1. Or for people who are having problems they could input all their info in the speed calc (or a simplified rollout calc) and see if their rollout is too high or too low.

It would really be optimal if you could input any combination of the variables to solve for one that was left out (be it pinion, spur, rollout, tire circumference, etc.), but you are the programmer, not sure if that would be too difficult to do. There is a simple calc on another site that is like this, but only solves for rollout, I can send you the link if you'd like.

_paralyzed_ · 08.03.2009, 02:24 AM

eh. I don't care for it......

zeropointbug · 08.03.2009, 03:35 AM

I think it would be silly, so silly in fact, I don't even know why I'm typing this?

simplechamp · 07:38 AM

I don't see why there's such an issue with it. It would be one number added on to the speed calculator results. Rollout is an important number when gearing, and even if you don't agree with the 1:1 ratio it still is good to know the rollout on your vehicle. If people think it's just some useless number they can ignore it, but others may be able to benefit quite a bit and save themselves a puffed lipo or fried ESC.

BrianG: You seemed a little interested at least, so I'm not sure what others will say, but I still think it would be a nice calculation to add on. I think my first post maybe went overboard and people are thinking this is some big complicated thing.

JThiessen · 08.03.2009, 09:02 AM

My .02 - for a lot us we can digest that info and make decisions on gearing with some amount of informed intelligence. For quite a few users, its best to just give them one number, and let them run with it. Too many choices will end up with a hundred posts of "what gear ratio do I pick for my XXXXX". I dont htink anyone is saying the 1:1 thing is bad in any way, just that the results of the speed calculator have been good so far, so why change what isnt broken....standard human psychology.

simplechamp · 12:33 PM

Quote:

Originally Posted by JThiessen

just that the results of the speed calculator have been good so far, so why change what isnt broken....standard human psychology.

It wouldn't be changing anything about the way the calculator works. The calculator already outputs tire circumference and final gear ratio. All I'm asking for it to do is take two numbers from the speed calc and divide them, nothing more. People who don't want to use it can pay it no attention, but it will be helpful to some people.

It's one extra number, based on numbers that are already being given in the speed calc. That's all I think it should be, not a whole re-tooling of the speed calc. It would just show you what your rollout ratio is along with all the other values the speed calc gives. How is that complicating things?

_paralyzed_ · 08.03.2009, 03:04 PM

its redundant. it doesn't necessarily complicate things but we are already utilizing a way of assuring safe setups. had we used "rollout" first that is what we would use, instead we just gear for a conservative speed. you're several years too late to show us a way of protecting our setups.

nothing against you or the rollout rule. if you want to use it, so be it. most of us just aim for our desired conservative top speed. BrianG is a frickin' genious and is uber helpful, he may add it anyway just to be thorough.

nobody's hatin', stick around, it's all about brushless here!