30-01-2009 00:59

Martino

Re: pic: View of our Harvester 842

how did you attach the FP motor to the shaft? my team is working on attaching one for our picker-upper.

thanks

30-01-2009 01:00

MrForbes

Re: pic: View of our Harvester 842

Looks like they used a piece of PVC pipe and cut slots in the end of it.

30-01-2009 01:43

Re: pic: View of our Harvester 842

Out of curiosity, how well does the Window motor powered belt work? We'll have one assembled with that motor by the end of the weekend, I'm just curious if it's fast enough in practice (our math said it is).

30-01-2009 03:01

Michael Corsetto

Re: pic: View of our Harvester 842

Depends on what you define to be "fast enough". The Denso motor has a free speed of 84 rpm's. If we assume the rollers will run at that speed (ignoring friction in the system), with a 2 inch diameter roller, and belt on both sides (ie sandwiching the ball), thats a travel rate of about 8.8 inches per second. For our system specifically, this simply isn't fast enough for us to be competitive, but every design is different. Looks great 842! Teams like you and 1726 should get special recognition for the openness you both have with your design process.

PS. I realize you did get the 2008 Chairmans Award, which is pretty good i guess , but maybe a ribbon or something would be nice as well...

30-01-2009 03:52

bmarick

Re: pic: View of our Harvester 842

congrats.

nice we have a similar pvc wheel design. bu we are using a piston to get the balls to the top of our system.

30-01-2009 09:55

spc295

Re: pic: View of our Harvester 842

that bot looks really cool from the front.

30-01-2009 11:39

Tim Spry

Re: pic: View of our Harvester 842

That looks like a clean design. How does it work with multiple balls in the chute? We were worried about rolling the balls against each other and having the straps on the balls catch on each other.

30-01-2009 13:12

Sean Raia

Re: pic: View of our Harvester 842

Looks good, have you done any tests?

30-01-2009 15:38

Magnechu

Re: pic: View of our Harvester 842

Is that chassis really legal? You might make the 2/3 rule, but certainly there's a rule that every corner must be protected by bumpers (at least 6 inches) on each of the corner, right?

30-01-2009 15:41

Chris Fultz

Re: pic: View of our Harvester 842

All:

There are already numerous debates and threads and posts about the bumpers on 842. This thread is about the harvester.

Please refrain from commenting on their need for bumpers.

Thanks -

30-01-2009 15:44

Vikesrock

Re: pic: View of our Harvester 842

Haha, they most definitely know this by now. I believe they plan to install flat front faces on both sides in order to mount bumpers on them.

30-01-2009 15:46

Magnechu

Re: pic: View of our Harvester 842

Sorry didn't see it :X

30-01-2009 20:47

5n1p3r

Re: pic: View of our Harvester 842

I love the swiss cheese design on the frame, thats allot of weight u took off.

30-01-2009 23:57

Re: pic: View of our Harvester 842

That's not their frame...

31-01-2009 00:29

amariealbrecht

Re: pic: View of our Harvester 842

I really like the design, are you worried about multiple balls clogging your design?
Very nice job, good swiss cheese holes ---> Good Call!
Best of luck this year,

31-01-2009 00:58

kE7JLM

Re: pic: View of our Harvester 842

http://www.youtube.com/watch?v=xPaFyd0bOBU

http://www.youtube.com/user/KE7JLM

31-01-2009 01:09

kE7JLM

Re: pic: View of our Harvester 842

We got a PVC coupler that fit nicely on the outside diameter of the FP motor spinning shaft thing, drilled some holes and it mounted nicely. To give it a little more we filled on some JB qwik. From the PCV coupler we poped in the some ABS the fit the diameter and put a bolt through that.

31-01-2009 01:13

kE7JLM

Re: pic: View of our Harvester 842

Take a look -

http://www.youtube.com/watch?v=xPaFyd0bOBU

31-01-2009 01:14

kE7JLM

Re: pic: View of our Harvester 842

HAHA, thank you

31-01-2009 01:19

kE7JLM

Re: pic: View of our Harvester 842

O yes, our frame was 24 pounds and when we where done with it all it was 14.

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