Let's Make Robots!

metal

T'REX tank chassis

It's been a long time coming but the T'REX robot chassis is here!

I've just been testing the final product so I thought I would post a few photos of the new chassis. The chassis is aluminium with a black powder coating. The tracks and struts are zinc with a black anodized finish. The wheels are zinc with a chrome finish.

Aluminum Frame

I am trying to build an aluminum frame for my robot but I am having trouble finding good techniques to cut and bend it. Anyone know a good way to cut and bend aluminum for a frame? I have basic tools, but not anything fancy. The frame needs to be about 7.5 inches and relatively sturdy.

Sneak preview of T'REX robot tank chassis prototype

 

Inspired by the Rip Saw tank, I have designed a new robot chassis called the T'REX tank chassis. I finally received all the parts for the prototype chassis. The entire chassis including gearboxes and tracks are all metal. The tracks have been anodized a gun metal grey colour.

Updated preview of new re-configurable, all metal tank chassis

Update: Just did a motor test using a fully charged 3S LiPo. These motor / gearbox combos are very powerful and will need a Wild Thumper controller to handle the peak current.

No load current: 0.6A
Nominal load current: 3A
Stall current: 11A+ 

This is definitely going to be the tank version of Wild Thumper!

New MkII robot gripper from DAGU

Dagu has had an aluminium gripper available for some time now so we decided it was time for a re-design. The new MkII gripper has some significant improvements on the original.

  • Brass sleeves in the joints improve rigidity and eliminate the need for adjustment.
  • A 2:1 gear ratio increases gripping torque while utilizing the full 180° travel of the servo.
  • A spring loaded clutch protects the servo gear train while providing spring tension for gripping objects.

where can i find these vex pieces?

okay, I have been scouring google trying to find the parts for the vex rcr mini walker crab thing, which should be displayed.

all the results I have found have been things like press announcements and demo robots built witgh this stuff, and none of it recent.

I personally want to build that walker, obviously with some extra personal touches added on, but I just cannot find the parts. every place seems to indicate that they were released, so did I just miss a limited run component or something?

 

 

well, it's my first manipulator. ist's nothing special, but it's better than everything i did with this metal contruction box i have. it would be great, when there … Read more