pic: View of our Harvester 842

[amariealbrecht]

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,

[kE7JLM]

Originally Posted by Sean Raia

Looks good, have you done any tests?

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

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

[kE7JLM]

Originally Posted by Martino

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

thanks

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.

[kE7JLM]

Originally Posted by CraigHickman

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).

Take a look -

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

[kE7JLM]

Originally Posted by Michael Corsetto

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...

HAHA, thank you

[kE7JLM]

Originally Posted by 5n1p3r

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

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

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