Zizzle's Brewbot
- Thread starter Zizzle
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Zizzle
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I entered another design competition with the brewbot and upgraded the brains as you saw in the last video.
I made the 10 semifinalists and earned some more prize money.
Then I made the final 3 based on audience feedback at a conference:
http://blogs.freescale.com/2011/11/01/free...sign-challenge/
The video is a bit wanky, but was done based on their guidelines.
Next week I'm down in Austin Tx with it for final judging.
$10k first prize, wish me luck.
I made the 10 semifinalists and earned some more prize money.
Then I made the final 3 based on audience feedback at a conference:
http://blogs.freescale.com/2011/11/01/free...sign-challenge/
The video is a bit wanky, but was done based on their guidelines.
Next week I'm down in Austin Tx with it for final judging.
$10k first prize, wish me luck.
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Knock em dead Matt! 10K will go along way with brewing at home.
clarkey7
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Have fun in Texas and Good Luck Matt. :icon_cheers:
Colorado next.......I wish I was you sometimes
PB
Zizzle
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kelbygreen
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thats good to hear. You may be able to make it bigger now 
drtomc
Fermentationist
congrats!
Zizzle
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Settling in after a few months of travels.
Four automated batches back-to-back.
Minimal supervision of the process - but got a bit cocky, left the house on the last one and murphy struck. The knot in the drawstring on the bag we have been using inside the stainless bag prevented the lid from fully closing. This prevented the lower limit switch from being hit.
So the crane kept running for a bit too long - unwound all the cable and then started winding up again. The brewbot was still looking for the lower limit switch to be hit. Wound the lid to the top and broke mounting off.
Should be an easy fix, but some lessons learned.
I have timeout on the crane down operation. But it was too long so didn't prevent the damage. If you have error detection routines these probably don't work if youdon't test them.
The logic for the crane should always look at both limit switches and stop if either is hit.
The lower limit switch is susceptible to this problem. May change to a potentiometer or rotary encoder to detect when the lid stops at the bottom of the travel.
Four automated batches back-to-back.
Minimal supervision of the process - but got a bit cocky, left the house on the last one and murphy struck. The knot in the drawstring on the bag we have been using inside the stainless bag prevented the lid from fully closing. This prevented the lower limit switch from being hit.
So the crane kept running for a bit too long - unwound all the cable and then started winding up again. The brewbot was still looking for the lower limit switch to be hit. Wound the lid to the top and broke mounting off.
Should be an easy fix, but some lessons learned.
I have timeout on the crane down operation. But it was too long so didn't prevent the damage. If you have error detection routines these probably don't work if youdon't test them.
The logic for the crane should always look at both limit switches and stop if either is hit.
The lower limit switch is susceptible to this problem. May change to a potentiometer or rotary encoder to detect when the lid stops at the bottom of the travel.
