Leaked 550 BLDC ?!?!?!?

Might work well for shooting ping pong balls, but Frank would never go there.

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No, never. Ping pong balls would be bad Energy

Watch Energy be ping pong balls now

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Field reset gonna need a lotta shop vacs.

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Maybe we will shoot corn kernels

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The NEO 550 should be somewhere around the same wattage as a MiniCIM I believe (~200w ish based on other motors and what other people have said). Plenty of people have built shooters for multiple games using MiniCIMs

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Many of Woodie’s MIT 2.70 challenges in the late 80s and early 90s used ping pong balls. King of the Hill was one of my favorites. Using ping pong balls in some way in a game would be a nod to the class that inspired FRC. Although it would be more suited to FTC than FRC. The 2.70 machines were much closer to FTC size.

Couldn’t find king of the hill, but here is a documentary on Ping Pong Harvest. Singing the drinking song is bringing back fond memories…

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Did I hear somebody say minibots?

My Goodness

I wasn’t thinking of such a big power increase. The last time we tried using 550s on a shooter was in 2013, and we found them to be the worst option among the choices we had at the time. I’m not positive but I think we ended up using CIMs with those Frisbees. I’m overwhelmed by the amount of power coming out of these little motors now.

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FWIW, 1114 (among many others) used 4 RS-550 motors on our shooter in 2013.

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How long until we see a three-550 drive gearbox I wonder

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I’m also overwhelmed by the amount of things I have yet to learn. Thanks to the several of you for helping me see that my assumptions can be wildly wrong.

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BB550s are measured at about 190W, so not really that different but with the NEO 550 being brushless and not air cooled we should be able to use the low end more effectively than the fan cooled BB550 where stalling them led to smocking and power reduction.

If these motors are actually ~200W and are about as hard to burn as the NEO, I could see them replacing the 775pro as the go-to mechanism motor. A 775pro derated to 75% (9V) puts out 195W. They also (presumably) run at a much higher free speed and are easier to burn up during programming/tuning (if not also during competition). They’re about the same price when you account for both the more expensive motor controller and internal encoder. Looking forward to hearing more details as they’re released.

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Are people expecting these to have a similar power output as an rs-550? Considering the jump in power from MiniCIM to a Neo or Falcon, I would expect these to be much higher power, and much more efficient. Big power in a tiny form factor would be pretty big for mounting on moving mechanisms or anywhere space is extra tight.

i dunno… either i’m not getting it or this seems a bit fishy…

67 used multiple 550s for shooting in 2013 and 2016. It’s definitely a good power range and RPM for belting to shooters.

Correct me if I’m wrong, but I remember a time back when I was a student (around 2012/2013) when there was an issue with 775-series motors (something like a case short?) that led to teams using multiple 550s in places where 775s would normally be a more preferable motor. Was this ever a deciding factor in 1114’s and 67’s use of 550-based shooters?

This isn’t to say that 550s can’t make a good shooter (as clearly evidenced by the success of y’all’s robots from those years), I’m just curious if the issues with 775s at the time played any role in your motor selections for your shooter mechanisms.

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The RS775 is also only ~250w at peak, compared to the 190w of the 550. Not a huge increase for a more bulky and, as you mentioned, electrically problematic motor.

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