Increase Arlo Load

I'm about to start my first major robotics project, making an autonomous cart which will eventually be integrated with RFID passive tags in a factory setting. Since I'm new to robotics, I like the idea of primarily doing stuff that has done before to limit mistakes. My first main problem is the load requirement, 200lbs.

I was told that even if the cart can't quite reach that weight it's okay, but it'd be nice to be in the range. I really like the Arlo system but I see there's a weight cap at 60 lbs. Is it possible to add an extra caster or duplicate the driving wheels to increase the load capacity? Do you have any ideas of how to use Arlo (or another similar model) in a way that comes close to reaching my goal load?

Thanks for any tips!

Comments

  • 2 Comments sorted by Date Added Votes
  • ercoerco Posts: 19,295
    That's a HUGE first project. I'd recommend you start small. Scale down to verify function then go big only after you understand the basics. To carry 200 lbs, I'd recommend you source some wheelchair motors. You don't want to put that much weight on Arlo motors, which are actually worm drive electric window motors.

    If you're operating on a smooth flat concrete floor (ie, factory) then your power requirements are low and you can use solid rubber tires.
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • Yes to wheelchair motors. Yes to at least thick (say, 3/4") plywood that doesn't share the "cold creep" properties of the HDPE used in an Arlo. Yes to solid or foam tires, though most wheelchair tires are pneumatic, for comfort and weight. Look for motors and wheels for a Hoveround-style mobility platform. Be prepared to spend money, as these same components are preferred by the combat robot guys.
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