How to Build a Cascading Thrifty Elevator for FIRST Robotics 01-05-25

[@JoonohLee]

Any recommendations for adding a 3rd stage to this?

[@sjamesparsonsjr]

Following

[@georgehuo8734]

YEAH

[@blaster_2220]

3 stage might be overkill

[@froggyman3999]

Is there a way to customize the second stage using variables like for the first stage in the onshape file?

[@luismota741]

And the costant force spring?

[@thethriftybot5299]

@@luismota741 we ran out of time to film that but you can see how to mount it in the build guide - drive.google.com/file/d/1oSjqXBBtoV5E6IUDdsV3zimKVau1XG3m/view?usp=drivesdk

[@shreyrohilla7883]

Thanks for this! If I already have the first stage, do you provide a kit for adding a second stage?

[@thethriftybot5299]

You'd just need to add the two dyneema pulley kits and an additional sliding bearing block kit.

[@PostAstray]

Thanks! Just out from the build itself, how much would this cost?

[@thethriftybot5299]

@@PostAstray www.thethriftybot.com/products/thrifty-elevator-stage-kit?_pos=1&_sid=03d82a9a8&_ss=r The 2 stage kit is $599 but you'll need to bring motors, gearboxes, hex shaft and extrusion as well.

[@EvrimCan-r8d]

Just to be surei how many of those bearing do we need for a 2 stage cascading elevator?

[@EvrimCan-r8d]

Its 8 right?

[@sjamesparsonsjr]

Where can I find these square tubing with 3x1 holes?

[@thethriftybot5299]

@@sjamesparsonsjr every major FRC vendor stocks grid pattern tubing including us

[@sjamesparsonsjr]

@@thethriftybot5299 FRC ... is this only for first robotics?

[@thethriftybot5299]

@@sjamesparsonsjr that's the intended use case yes, designed with FRC in mind at least

[@sjamesparsonsjr]

@@thethriftybot5299 And your site has them on back ordered 😢

[@thethriftybot5299]

@@sjamesparsonsjr we will have more tubing arriving this week