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-   -   Awesome Electronics Box! (http://www.chiefdelphi.com/forums/showthread.php?t=135547)

dzf209 07-03-2015 15:39

Awesome Electronics Box!
 
Check out the new electronics box my team designed and built for this year's game. Last year our electronics was a disaster; speed controllers ziptied to gearboxes, relays mounted in inaccessible locations, wires everywhere (and unlabeled). This year we vowed to do better and this is what we came up with. It's a work in progress, so any feedback is greatly appreciated!

https://www.youtube.com/watch?v=klMEioarUds

dzf209 07-03-2015 18:15

Re: Awesome Electronics Box!
 
1 Attachment(s)
Here's a CAD render of the box in addition to the video provided above, in case anyone is interested.

xXhunter47Xx 08-03-2015 03:43

Re: Awesome Electronics Box!
 
Very, very, very nice!
The only issue I see is the wago connections on the PDP being a bit of a hassle to get to but otherwise I dig it.

asid61 08-03-2015 04:43

Re: Awesome Electronics Box!
 
That looks slick. Are you still able to access all the connections?

dzf209 08-03-2015 12:42

Re: Awesome Electronics Box!
 
Quote:

Very, very, very nice! The only issue I see is the wago connections on the PDP being a bit of a hassle to get to but otherwise I dig it.
They're actually not that difficult to get to, and actually, we haven't needed to touch them since we initially wired them up. That's one of the great things about CAD. In the model we made sure there was enough room to get our hands in and connect everything before we built it.

Quote:

That looks slick. Are you still able to access all the connections?
Yep, getting access to all the connections is as simple as undoing those four corner thumbscrews. Actually the biggest headache we had was the Anderson powerpole crimps. There's definitely some skill involved in crimping them. Once they're locked into place, they're great, but you have to make sure they aren't even slightly bent in order to get them to mate with the connector housing.

rich2202 08-03-2015 14:54

Re: Awesome Electronics Box!
 
Nice.

If I were inspecting your robot, I would want documentation that the motor connections are rated for 40 amps.

dzf209 08-03-2015 15:12

Re: Awesome Electronics Box!
 
Good tip! They're Anderson powerpole connectors rated for 45 amps. The wires are also the appropriate size, I'll make sure to print out a spec sheet.

Tapoore 08-03-2015 15:32

Re: Awesome Electronics Box!
 
Great work! I love tidy solutions like this.

orangemoore 08-03-2015 15:34

Re: Awesome Electronics Box!
 
Quote:

Originally Posted by rich2202 (Post 1455074)
Nice.

If I were inspecting your robot, I would want documentation that the motor connections are rated for 40 amps.

For what rule?

Al Skierkiewicz 08-03-2015 15:41

Re: Awesome Electronics Box!
 
Very impressive! Gold Star for you guys.

deheer_j 08-03-2015 17:06

Re: Awesome Electronics Box!
 
Very clean and flexible design. Well done! What CAD software are you using and what did you use to make that animated CAD model?

dzf209 08-03-2015 17:12

Re: Awesome Electronics Box!
 
Quote:

Very clean and flexible design. Well done! What CAD software are you using and what did you use to make that animated CAD model?
We're using 2014 SolidWorks. For the render I used a motion study in SolidWorks with the PhotoView 360 package. The final movie was made with Windows Movie Maker.

PAR_WIG1350 08-03-2015 20:12

Re: Awesome Electronics Box!
 
Quote:

Originally Posted by orangemoore (Post 1455095)
For what rule?

Quote:

R39 Branch circuits may include intermediate elements such as COTS connectors, splices, COTS flexible/rolling/sliding contacts,
and COTS slip rings, as long as the entire electrical pathway is via appropriately gauged/rated elements.
The way I read this means that the connectors must be rated for at least as much current as the breaker that feeds the branch circuit.

dzf209 08-03-2015 21:06

Re: Awesome Electronics Box!
 
Quote:

Quote:
Originally Posted by orangemoore View PostFor what rule?

Quote:R39 Branch circuits may include intermediate elements such as COTS connectors, splices, COTS flexible/rolling/sliding contacts, and COTS slip rings, as long as the entire electrical pathway is via appropriately gauged/rated elements. The way I read this means that the connectors must be rated for at least as much current as the breaker that feeds the branch circuit.
That's how I would interpret it too. Even if it wasn't a rule, it would be silly to protect the circuit with a 40 amp breaker, but use connectors that would fail below that current rating. Here is the data sheet in case anyone is interested in using them.

http://www.alliedelec.com/images/pro...S/70162308.pdf

Jacob Bendicksen 08-03-2015 21:12

Re: Awesome Electronics Box!
 
How's the heat dissipation? Looks like it could get a little hot. Awesome job!


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