Fwd: Re: [PPPRS] Questions about the $500 budget for a A+PRS

[jesse brockmann]

For those interested in A+PRS.   The $500 budget isn't as bad as I thought...

---------- Forwarded message ----------
From: "Jeremy Bloyd-Peshkin"
Date: Apr 22, 2016 8:53 AM
Subject: Re: [PPPRS] Questions about the $500 budget for a A+PRS
To: <power-rac...@googlegroups.com>
Cc:

> Heya Jesse,
>
> I may be able to help with clarification on some of those. 
>
> > If I buy a battery for $100, it only counts as $50 towards my budget.  Or is it if I find a battery in some ditch, and it's worth $100 I have to value it at $50? If I pay $100 it counts as $100 to budget?
>
> It's half the fair market value, doesn't mater how you get it. If you buy a $100 battery for $100, it counts as $50. If you find a $100 battery in a ditch, it counts as $50. If for some reason you buy a $100 battery for $200, it still counts as $50.
>
> > No single battery pack shall result in pushing the car’s budget above $500
>
> I have no idea where that rule came from. Sorry.
>
> > Final cost of the machine does NOT account for the initial cost of the Power Wheel purchased used or new plus shipping costs or tax.
>
> You are correct that the cost of the original power wheel doesn't count towards budget. Want to start of spending $300 on a Lamborghini body? Do it. Just don't try to make it fit in a suitcase.
>
> Hope that helps,
>
> Jeremy
>
> On Fri, Apr 22, 2016 at 12:42 AM, Jesse Brockmann <jjbr...@gmail.com> wrote:
>>
>> In reading the rules, I had a couple questions I was hoping to get clarification on.   I'm sure you guys know better the intent of these rules.  I'm close to the budget.. and just want to be I understand.
>>
>> >  Batteries are worth half their fair market value towards the total of your $500 budget.  
>>
>>  Does this mean if I buy a battery for $100, it only counts as $50 towards my budget.  Or is it if I find a battery in some ditch, and it's worth $100 I have to value it at $50? If I pay $100 it counts as $100 to budget?
>>
>> > No single battery pack shall result in pushing the car’s budget above $500.
>>
>> What exactly is meant by this?   I can get a mega LiFePO4  48v 50A custom battery, and it's fine.. even if it costs $500 on it's own?  Huh?
>>
>> > Final cost of the machine does NOT account for the initial cost of the Power Wheel purchased used or new plus shipping costs or tax.
>>
>> Does this mean the power wheels itself isn't part of the budget?  I'm unlcear what exactly this means?
>>
>>
>> Thanks,
>> JesseJay
>>
>> --
>> You received this message because you are subscribed to the Google Groups "Power Racing Series" group.
>> To unsubscribe from this group and stop receiving emails from it, send an email to power-racing-se...@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>
>
>
>
> --
> Jeremy Bloyd-Peshkin
>
> http://ulterior-motors.com
>
> --
> You received this message because you are subscribed to the Google Groups "Power Racing Series" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to power-racing-se...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

[Jon Watte]

Also, the autonomous parts are not part of the budget.

So, motor controllers, not budget!

Sincerely,

jw

Sincerely,

Jon Watte


--
"I find that the harder I work, the more luck I seem to have." -- Thomas Jefferson

--
You received this message because you are subscribed to the Google Groups "diyrovers" group.
To unsubscribe from this group and stop receiving emails from it, send an email to diyrovers+...@googlegroups.com.
To post to this group, send email to diyr...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/diyrovers/CANqFZg0_e7wDnBNP4%3DTKbRqnujwjLZsZ%2B45E7RsKZkrcjM_XoA%40mail.gmail.com.

[Ted Meyers]

Yep, from my understanding, basically, only the non-original drive battery, motors, wheels, and frame count toward the budget.  Just about everything else can be argued as part of the autonomous system.   You would have to really go all out to get up to that $500 budget.  Especially if you are re-using a lot of the original parts!

[Ted Meyers]

Now that I'm deep into building an A+PRS entry, I decided that it was time to actually read the rules. 

The rules start out as follows: "The following rules are a subset of the official PRS rules and only apply to autonomous competitors."

Arghh, I'm confused already.  Does this mean that _all_ the PRS rules apply to A+PRS (unless otherwise noted in the subset)?  Or do just the following rules apply to A+PRS (and they just happen to be a subset?  The second interpretation makes more sense to me; for example, PRS goes into great detail on brake requirements and specifically states that there must be mechanical brakes.  The A+PRS rules just happen to mention that motor brakes may be used.  That seems reasonable on an autonomous vehicle this size.  Also, the safety check list in the A+PRS rules only lists the items in the subset.  At some points the subset refers to sections in the full rules, so obviously those sections do apply (like the "So awesome we don't care" rule).

The subset of rules is much easier to build against, and seems to be more in the spirit of how Sparkfun rolls.  I'll be a bit surprised if the tech inspection includes more than: "Hey nice build, did ya follow all the rules?  Yeah.  Okay great, you pass".  But then again, they did put a tech inspection checklist in the rules.

I'm really hoping that I don't have to have a team volunteer, numbers on the vehicle, bumpers 4-6 inches from the ground (not a bad idea though), mechanical brakes , and everything else that make it sound like a formula 1 specification list.

[jesse brockmann]

Well there is a Google group for PRS, as well as a FB group. (Invite group, power wheels racers for adults).   But I'm assuming no bumper, or brakes.  But I plan to have a functional mechinal brake on mine. :)
  Made good progress.  Got steering working and drive motor too.  Just need to get it put back together, and start testing.  Once I do I'll post details.

JesseJay

--

You received this message because you are subscribed to the Google Groups "diyrovers" group.
To unsubscribe from this group and stop receiving emails from it, send an email to diyrovers+...@googlegroups.com.
To post to this group, send email to diyr...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/diyrovers/71871a98-288f-476b-bd41-93d044deb986%40googlegroups.com.