pic: 870 Motor Mount

FIRST Robot Showcase
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Hey…here's the pics of our motormount…I'll be taking more as soon as I can get a chance and we will post also post up a drawing either pdf or cad or both.

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OHH look at all the CNC

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Ive gotta question… Why is that chain so close to the floor? Did that cause any problems?

But nice mounts for the motors. Are those U-bolts the only thing holding it on to the rest of the robot?

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the chain isnt even attached to the sprockets

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that could be a problem for a robot

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Ohh very nice, robust and compact, how did your drive fair for you this season?

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Ok All! Now that you have a look at the drives lets give you some pros and cons from our 870 drive system.

This complete drive system was manufactured on a cheap hand operated import $900 mill and NOT A CNC. This means if we can do it you can also with a basic mill. This is our best design and lightest weight thus far for using the drill drive set up.
Pros:

  • The motors always ended up cooler at the end of a round than at the beginning due to great heat transfer/cooling.
  • The mount is held totally in place with one u-bolt allowing for fast removal if needed. ( We never had to remove or do any repairs to the drive system at the regional or Atlanta!)VERY DEPENDABLE
  • The design allows for almost any orientation in a bot.
  • The strength of the system supporting the drill transmission allows for extreme side load and end load if necessary.
  • The design allows useing the threaded drill end if desired or if needed a custom shaft as we did can be machined to fit into the drill dogs.(that is another internal pic of the system)
  • The design once removed from the bot requires removal of the six socket head bolts and splitting the bracket for fast drop in parts replacement.

Cons:

  • Time to make one drive mount appx: 5hrs
  • precise machining is a must( put your best millers on the task)
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ooooooooooooooooohhhhhhhhhhhhhhh aaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhh their perty lol :yikes:

how much did they weigh?

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The mount incorporating only the aluminum portion is .7lbs .
( This is the lightest ever! :wink:

just add the six socket head bolts and it will still be under 1 lb

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Maybe edit so that it says: .70 lbs instead of .
70 lbs.