[Dprglist] Pat's robot

[Karim Virani]

nah, fix it in code! lol

On Wed, Mar 2, 2022 at 1:29 PM David P. Anderson via DPRGlist <
dprglist at lists.dprg.org> wrote:

> Howdy DPRG,
>
> At the meeting last night we talked about ways to use testing to measure
> a robot's performance, and I pointed Pat to a webpage on odometery
> calibration.  But I don't want to get the cart before the horse here.
>
> Pat, you mentioned that there might be some mechanical issues and those
> should of course be addressed first.
>
> I've found it useful to strip down to the simplest exercises. You might
> consider finding a nice flat long place, turn off odometery/navigation,
> and just set the robot's speed controllers to run both motors at the
> same speed.  Then point it down the hallway or whatever and let it go.
> Do this a couple of times. Does it tend to drift right or left?  Can you
> ascertain that the chassis is straight and the wheels are parallel?  Is
> there slippage in the drive train?   The wheel-to-shaft coupling?  The
> tire to wheel attachment?  And so on.
>
> I would nail down the mechanical issues first before looking at
> odometery calibration and so on.
>
> cheers!
>
> dpa
>
>
>
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