2412 Robototes 2023 Open Alliance Build Thread

If you find that’s a lot of work, you can also use these gussets to transfer torque:

And these collars to hold things axially:

The amount of plastic gets pretty narrow on either side of those standoffs - you may want to keep an eye out for cracking after the intake bashes against the wall a few times.

Yeah its pretty tight currently. This intake is a prototype and will likely be replaced by a more advanced articulating intake we are working on right now.

We are mostly just cutting on tormach to train more people on it

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More updates??

  • We scored our first game pieces! So far things seem quite reliable, intake functions properly, we have been able to score on every level node
  • Robot handed over to programming a few days ago, all subsystems are functional in code
  • Articulating intake coming along nicely

Stuff that still needs to be done:

  • Presets for different node levels
  • Programming for intake color and distance sensors
  • RGB for the RSL and Limelight mounting pole(will signal to human player and other robots)
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“something random so I can write on the thing again”

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MORE STUFF???:exploding_head:

  • Bumpers in progress(and they are looking nice👀)
  • New Handles, module guards and sponsor panels all in one neat 3d printed part
  • Drive Team selected, practices continuing
  • New intake V3 and Articulating intake V2 continuing nicely, parts fabricated
  • Changed chain routing on arm for better tension

Things we are still working on:

  • Sponsor plates
  • Bellypan V2 getting cut

(way more stuff in progress too)

Image dump coming soon

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Glacier peak is coming up, so here are some robot patch notes:

  • All of our MK4i’s have been retrofitted with the replacement parts from SDS

  • Bumpers are coming along nicely, we have made use of steel brackets in the back and aluminum ones in the front to shift the center of gravity a little bit

  • Sponsor panels are getting cut

  • 3D printed swerve covers/handles are done and mounted

  • Moved one of the encoders from the base to the joint of arm for better accuracy

  • Drivebase tuned more

  • Loose encoder magnet in one of the modules removed and secured better

See you at Glacier Peak!

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I was wondering what chain tensioner you guys are using for the massive chain? They look pretty small and we haven’t been able to find anything that small.

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it’s from west coast products, WCP-0051 #25 spartan chain tensioner :slight_smile:

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Have you tried righting a tipped robot with the arm yet?

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Yeah, we haven’t added enough ballast at the back yet so we tipped forwards. We were able to right ourselves with the arm without issue. The robot is also super light right now so it should be really hard to tip it even with arm extended after we weigh the back down a little.

What are you all planning on using for ballast?

so that was a little more trolling than previously anticipated:

Other than the dog in the drivebase, one of the first things you will do doubt notice is that the drivebase looks a little… in pieces. Now, other than being able to take a goofy photo, there were a few reasons the whole robot had to get ripped apart:

  • New metal bellypan

  • Fitting the MK4i’s with the new intermediate shafts(could be done with robot still assembled, but we were taking it apart anyway)

  • New box tube with bolts in it for mounting bumpers

  • Better cable management

The new bellypan has been cut and will be installed tonight, and the whole robot should be reassembled for drive practice tomorrow. I leave you with another incredible image:

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There was talk of filling the rear box tube with a steel block, which could be a good way to add weight without changing the profile of the bot at all

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the dog’s name is nikola :dog:

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Crane is no longer in 3 pieces!

The robot was assembled last night and is now functional! The new bellypan cut from aluminum, the new chain tensioners, sponsor panels, and bumpers have been mounted, and the wiring is finished.

Here is a cool video of Crane auto balancing to tide you over until Glacier Peak:

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Was this one of our auto paths? Wondering how we went past the charge station and then back on.

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not from the team but I would say they did that in order to get the mobility bonus.

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What is the light inside of the intake for???

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