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Our electronics board for our practice robot mid-build season. This was 1538's first year using a waterjet bellypan and I'm very happy with the results. I learned many electrical techniques this year, so special thanks to our software and electrical mentor Kiet. I'm definitely proud of my work on the practice and competition boards.
Discussion
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14-05-2012 01:10
Alex698
Re: pic: 1538's Practice Electronics Board
Absolutely beautiful, I wish I could have done that when I was in high school. Also, those blue needlenose pliers are so useful!
14-05-2012 01:31
BJT
Re: pic: 1538's Practice Electronics Board
Yet another picture I will show to our electrical people and say: This is what we need! it can be done!..
14-05-2012 05:46
ttldomination
Re: pic: 1538's Practice Electronics Board
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Originally Posted by Alex698
Absolutely beautiful, I wish I could have done that when I was in high school. Also, those blue needlenose pliers are so useful!
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- Sunny G.
14-05-2012 07:27
Boe
Re: pic: 1538's Practice Electronics Board
i can't take my eyes off of how neat the sidecar is 
14-05-2012 08:21
lynca
Re: pic: 1538's Practice Electronics Board
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Originally Posted by ttldomination
If I'm looking at them correctly, those are not pliers per say, but more like little cutters. Regardless, their usefullness stands strong.
- Sunny G. |
http://en.wikipedia.org/wiki/Diagonal_pliers
14-05-2012 09:43
Nick Lawrence
Re: pic: 1538's Practice Electronics Board
I see you guys have adopted the 254/968 way of wiring from Kiet.
It's so beautiful!
-Nick
14-05-2012 10:12
sanddrag
Re: pic: 1538's Practice Electronics Board
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Originally Posted by lynca
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I'd like to know what p/n of terminals you used on the Victors, and if you had to sand them to fit.
14-05-2012 13:36
AdamHeard
Re: pic: 1538's Practice Electronics Board
Curious, what did you run 4 spikes for?
14-05-2012 14:09
Al Skierkiewicz
Re: pic: 1538's Practice Electronics Board
Conner,
One of the best electrical wiring jobs I have ever seen. In addition to the nice layout, everything is very short giving the best electrical loss layout. The only thing I could think of, is the PD bridging the distance between two sides. Please remember this is one giant circuit board with a lot of copper on it. The mechanical stress it is likely to encounter might cause a break in the board. If it is not firmly attached to both sides, you should be OK.
Gold Star!!!
14-05-2012 15:51
connor.worley
Re: pic: 1538's Practice Electronics Board
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Originally Posted by AdamHeard
Curious, what did you run 4 spikes for?
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1 for a compressor
2 for our intake system (field -> hopper)
2 for our chute system (hopper -> shooter)
14-05-2012 16:00
Akash Rastogi
Re: pic: 1538's Practice Electronics Board
Conner, do you think you could get together with Kiet to put together a simple white paper about the methods/part numbers/wire choice (brand, source)/terminals/tips that he taught you this year? Do you use nylon/other plastic hardware to mount electronics? What is the best generic layout? Does having a waterjet hole pattern for electronics really force you to keep a clean layout?
Would be great to have these down on paper if you folks get the time. Thanks!
14-05-2012 16:05
AdamHeard
Re: pic: 1538's Practice Electronics Board
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Originally Posted by connor.worley
We actually ran 5, but one's missing from this picture.
1 for a compressor 2 for our intake system (field -> hopper) 2 for our chute system (hopper -> shooter) |
We debated running our various conveyors on them, but were afraid of tripping the fuse with a 500 sized motor.
14-05-2012 16:49
Alan Anderson
Re: pic: 1538's Practice Electronics Board
That's an amazingly clean layout. It's almost ridiculously clean. I'd be concerned that any wiring issues would be hard to fix without ruining it.
Forgive the nitpicks, but is the cRIO insulated from the frame? And you do know that it's never been legal to replace the Spike fuses with breakers except on the one controlling the compressor, right? I'm also curious why the PDB isn't rotated 180 degrees so the power wires to the Victors and the Spikes don't cross each other, and the cRIO power can run a shorter distance, though I can see it would be a tradeoff against the battery position.
14-05-2012 17:02
connor.worley
Re: pic: 1538's Practice Electronics Board
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Originally Posted by Alan Anderson
That's an amazingly clean layout. It's almost ridiculously clean. I'd be concerned that any wiring issues would be hard to fix without ruining it.
Forgive the nitpicks, but is the cRIO insulated from the frame? And you do know that it's never been legal to replace the Spike fuses with breakers except on the one controlling the compressor, right? I'm also curious why the PDB isn't rotated 180 degrees so the power wires to the Victors and the Spikes don't cross each other, and the cRIO power can run a shorter distance, though I can see it would be a tradeoff against the battery position. |
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Originally Posted by Akash Rastogi
Conner, do you think you could get together with Kiet to put together a simple white paper about the methods/part numbers/wire choice (brand, source)/terminals/tips that he taught you this year? Do you use nylon/other plastic hardware to mount electronics? What is the best generic layout? Does having a waterjet hole pattern for electronics really force you to keep a clean layout?
Would be great to have these down on paper if you folks get the time. Thanks! |
14-05-2012 17:44
kiettyyyy
Re: pic: 1538's Practice Electronics Board
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Originally Posted by Al Skierkiewicz
Conner,
One of the best electrical wiring jobs I have ever seen. In addition to the nice layout, everything is very short giving the best electrical loss layout. The only thing I could think of, it the PD bridging the distance between two sides. Please remember this is one giant circuit board with a lot of copper on it. The mechanical stress it is likely to encounter might cause a break in the board. If it is not firmly attached to both sides, you should be OK. Gold Star!!! |
The PD mount area is very rigid as there is a supporting 2x1x1/8" cross member with holes for solid standoffs to mount the electronics plate to.
There is little to no wobble when trying to move the PD.
14-05-2012 17:47
kiettyyyy
Re: pic: 1538's Practice Electronics Board
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Originally Posted by sanddrag
Actually I believe they are flush cutters, most likely of the Xuron brand, but possible Xcelite.
I'd like to know what p/n of terminals you used on the Victors, and if you had to sand them to fit. |
The spade terminals that we used were sourced from McMaster-Carr, PN 69145K62. These fit perfectly in the Victor terminals. We did not need to modify these connectors.
14-05-2012 17:52
CalTran
Re: pic: 1538's Practice Electronics Board
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Originally Posted by Alan Anderson
I'm also curious why the PDB isn't rotated 180 degrees so the power wires to the Victors and the Spikes don't cross each other
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Apart from that, it looks absolutely beautiful. I approve.
14-05-2012 18:15
kiettyyyy
Re: pic: 1538's Practice Electronics Board
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Originally Posted by CalTran
I was curious about that too. We've learned over the years we have vastly fewer problems when we keep the crosses strictly perpendicular rather than running them parallel and wrapped up in a bundle.
Apart from that, it looks absolutely beautiful. I approve. |
Regardless, we did not have any issues mounting the PDB as pictured.
15-05-2012 08:24
Al Skierkiewicz
Re: pic: 1538's Practice Electronics Board
Kiet,
I was thinking that robot frame flexing while driving or being hit would allow some movement between the two sides of the robot. It is this independent movement that I was worried about.
15-05-2012 09:12
sdcantrell56
Re: pic: 1538's Practice Electronics Board
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Originally Posted by AdamHeard
What motors, ratio, and diameter were these run on?
We debated running our various conveyors on them, but were afraid of tripping the fuse with a 500 sized motor. |
15-05-2012 13:06
Travis Covington
Re: pic: 1538's Practice Electronics Board
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Originally Posted by Al Skierkiewicz
Kiet,
I was thinking that robot frame flexing while driving or being hit would allow some movement between the two sides of the robot. It is this independent movement that I was worried about. |
15-05-2012 13:08
Al Skierkiewicz
Re: pic: 1538's Practice Electronics Board
Thanks, Trav. I would hope that would suffice.
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