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Author Topic: Arena Work Day  (Read 2536 times)

FingerTech

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Arena Work Day
« on: March 16, 2015, 02:34:46 am »
Here are the notes I took down at our last meeting.  What else do we want to accomplish before the big Sept event?

Magnetic door switches that E-stop the hazards and flash lights.
Sign holders on roof.
Replace/fix hazard motor.
James is "Audio Master" (speakers, microphone, announcing)
Dennis has a flatscreen tv for the top of the arena (playing greatest hits videos, live video, and when the next fight is happening)
Albert is in charge of demo bots ($5ea per 3min?, add dropouts to the FingerTech table)
Kurtis Wanner
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thesaxmachine

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Re: Arena Work Day
« Reply #1 on: March 16, 2015, 11:16:11 am »
You said you had feet for the table.  What kind were they again.

FingerTech

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Re: Arena Work Day
« Reply #2 on: March 17, 2015, 01:37:54 pm »
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Travis7s

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Re: Arena Work Day
« Reply #3 on: March 17, 2015, 10:18:27 pm »
I think I have some reed switches and screw mount magnets I could donate...

While we're looking at hazards I think it would be good to investigate a 12/24V system. If we had 2 12V supplies or batteries we could toggle one on in series to make them hazardier.

Travis7s

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Re: Arena Work Day
« Reply #4 on: March 17, 2015, 11:48:44 pm »
These are what I have handful of:

http://www.digikey.ca/product-detail/en/59025-010/59025-010-ND/36970

Ideally we would implement the switching using the locking pins. Not only would you need half the switches, but it would also be the safest. Not exactly sure how to do it though. You could probably embed a small magnet into the end of the pin, but mounting the switch places it right into the pushout zone where it could easily be damaged.

FingerTech

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Re: Arena Work Day
« Reply #5 on: March 18, 2015, 03:30:10 pm »
When the pushout is open, the door covers where the switch would be mounted.
Kurtis Wanner
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Lucas Grell

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Re: Arena Work Day
« Reply #6 on: March 20, 2015, 04:11:42 pm »
Not sure exactly how this switch thing would work, but could you implement it with the pin as part of the circuit? That'd make it pretty much foolproof, exactly how you want something on an arena. I'm thinking kind of like one of the Fingertech switches, but without the threaded bit, maybe a spring contact?

ACME

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Re: Arena Work Day
« Reply #7 on: April 06, 2015, 01:14:44 pm »
Even if we just put a momentary contact switch behind the locking pins that might work. We might need to add some method (thread the end of the pin or magnet or something) to ensure the pin makes good contact through the entire match.

We could even build the wood floor up a bit in the middle to protect the switch and wiring and route everything below the arena.

Travis7s

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Re: Arena Work Day
« Reply #8 on: April 09, 2015, 01:19:08 am »
I'd lean towards something non-mechanical as dirt and grime seems to be a problem in the off season, although I suppose the switch module could just be connectorized and removed.

Another option is an optical switch that the door pin passes through, you wouldn't need to maintain very precise contact with those.

FingerTech

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Re: Arena Work Day
« Reply #9 on: April 12, 2015, 04:00:10 pm »
What about those security window switches?  I think they are sealed and are operated when a magnet gets close.  Put a neo magnet in the end of the door lock pin.
Kurtis Wanner
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Travis7s

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Re: Arena Work Day
« Reply #10 on: May 31, 2015, 02:48:52 pm »
I bought a pair of LED shoplights from costco for my garage. I think I will bring them to try out in the arena for Express hobbies. They are half the wattage of the fluors and won't break so messy. :P

needmorercs

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Re: Arena Work Day
« Reply #11 on: June 06, 2015, 12:46:44 pm »
The Arena needs to be painted, it gets covered in potash during the trips into the city during the winter. Its a bit rusty now.

Travis7s

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Re: Arena Work Day
« Reply #12 on: June 06, 2015, 04:08:35 pm »
How bad is it exactly?

I think the tentative plan is to use the arena 'as-is' for the Express Hobbies event. We can have a meeting then to plan a real arena work day as we need to get it in good order for Comic Con and Spectrum.

We also need to look improving the hazards as they seem to barely work now. In my opinion they were a little on the weak side since day 1 so I would like to look at getting new and improved motors. Also I would love to make them variable speed and gradually increase the power as the match goes on, so they start out fairly tame, but are full speed by the last minute.

DC or AC?

FingerTech

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Re: Arena Work Day
« Reply #13 on: June 08, 2015, 06:08:17 pm »
I think something like that (variable speed) will require DC and a big ESC.
Pick out the motors and ESC(s) and give me a price (or post a link).  I am going to see about some fundraising.
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thesaxmachine

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Re: Arena Work Day
« Reply #14 on: June 09, 2015, 11:12:14 am »
I have this:

http://www.aliexpress.com/snapshot/6619709973.html?orderId=66883595567744

It works pretty good as it only goes in one direction.  Works fine @48V with my lawnmower motors