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This is about 50% of the business on our robot....
Discussion
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23-01-2008 20:27
RyanN
Re: pic: 973 teaser3
Are the motors attached to the Banebots planetary gear boxes legal? I don't know the specs on the small motors they gave us, but they looked pretty weak. Is this the FP motor?
23-01-2008 20:33
lukevanoort
Re: pic: 973 teaser3
So I guess that, while you guys have the same love for simple, FP powered arms that the BeachBots do, you don't agree on the merits of stock FP gearboxes?
23-01-2008 20:35
T3_1565
Re: pic: 973 teaser3
oh for sure its legal to use banebots transmission are legal as long as they are ones you bought on the website!
Nice looking design, are those motors used for an arm type device, those look like pulleys to me, belt drive maybe???
23-01-2008 20:36
David Guzman
Re: pic: 973 teaser3
They both look the same. In the kit we got a RS540 and a RS550. According to the specs on Banebot's website the RS550 is actually a little stronger than a Fisher Price without a gearbox.
What motors are those on the Banebot planetary gearboxes?
23-01-2008 20:39
EricH
Re: pic: 973 teaser3
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Originally Posted by T3_1565
Nice looking design, are those motors used for an arm type device, those look like pulleys to me, belt drive maybe???
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23-01-2008 20:41
RyanN
Re: pic: 973 teaser3
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Originally Posted by T3_1565
oh for sure its legal to use banebots transmission are legal as long as they are ones you bought on the website!
Nice looking design, are those motors used for an arm type device, those look like pulleys to me, belt drive maybe??? |
(I was thinking that maybe they were planning on the mabuchi motor from last year)Reminds me, I have to get someone to fix our motor tomorrow because our driver burned it up when he refused to listen to me. (Released the magic smoke, lots and lots of magic smoke)
23-01-2008 20:44
AdamHeard
Re: pic: 973 teaser3
They are FP motors into 64:! planetary gearboxes.
FYI; eric has been entirely right with every single one of his responses/guesses in all 973 threads so far. I'd take his word in future ones.
We used the Banebots gearboxes because they were much easier to mount and interface. We made sure to stay away from the higher reduction models though.
23-01-2008 20:44
jgannon
Re: pic: 973 teaser3
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Originally Posted by RyanN
I don't know the specs on the small motors they gave us, but they looked pretty weak.
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http://banebots.com/p/M2-RS550-120
With this gearbox, you could get quite a bit of torque out of the 550.
http://banebots.com/pc/MP-42nnn-550/MP-42256-550
(However, the 385's do leave something to be desired.)
23-01-2008 20:45
Vikesrock
Re: pic: 973 teaser3
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Originally Posted by EricH
Looks like the 973 version of the Beach'Bots favorite arm drive. Maybe they did it this way to make powering the arm easier? (On the stock FP output, you need some sort of adapter--usually an octagon--to drive a sprocket via a shaft.) As such, I would say chain drive, two stage reduction to the top.
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EDIT: although that doesn't mean a whole lot, I would guess it's far easier to draw the gear like that if you are making it yourself and not using a premade file.
23-01-2008 20:46
RyanN
Re: pic: 973 teaser3
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Originally Posted by jgannon
You should take a look at the specs... you might be surprised.
http://banebots.com/p/M2-RS550-120 With this gearbox, you could get quite a bit of torque out of the 550. http://banebots.com/pc/MP-42nnn-550/MP-42256-550 (However, the 385's do leave something to be desired.) |
EDIT: The 550s were not included in the KOP. The 385s were. There is quite a bit of a difference. http://www.mabuchi-motor.co.jp/cgi-b...AT_ID=rs_385ph
23-01-2008 20:48
EricH
Re: pic: 973 teaser3
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Originally Posted by AdamHeard
FYI; eric has been entirely right with every single one of his responses/guesses in all 973 threads so far. I'd take his word in future ones.
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Our favorite mounting tactic was to position the hole for the axle of the stock gearbox in such a way that the flat portion of the gearbox was against the mast section, then use an octagon in the output to finish holding it and then hose clamp the output around the octagon. Hey, it worked.
23-01-2008 21:20
jgannon
Re: pic: 973 teaser3
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Originally Posted by RyanN
The 550s were not included in the KOP. The 385s were.
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24-01-2008 11:58
Ben Piecuch
Re: pic: 973 teaser3
Based on your mounting setup, I envision that the ability to mount / unmount these gearboxes will be fairly tricky. I don't see a whole lot of room to get a wrench in there to unbolt the face-mounted gearboxes. (Yes, a simple allen key will do it, but it's cumbersome.)
We're looking at an extremely similar setup, and access to the mounting holes is one of our concerns. Just wondering if you've thought of this as well.
Thanks,
Bengineer
24-01-2008 12:21
AdamHeard
Re: pic: 973 teaser3
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Originally Posted by Ben Piecuch
Based on your mounting setup, I envision that the ability to mount / unmount these gearboxes will be fairly tricky. I don't see a whole lot of room to get a wrench in there to unbolt the face-mounted gearboxes. (Yes, a simple allen key will do it, but it's cumbersome.)
We're looking at an extremely similar setup, and access to the mounting holes is one of our concerns. Just wondering if you've thought of this as well. Thanks, Bengineer |
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