jstarne1
USA
Asked
— Edited
ANT is doing a great job getting the first proto of the XLR6 ready to send to me to start working on so for the sake of planning I would like to listen to the communities ideas for a rover kit and rover base. The EZ Robot kit is a great place to start so we aren't trying to replace Roli. This is for the next level kit , more ridiculous add ons can be made later. I will share some of what we have in mind so far. As always all our projects are being developed for use with ez robot Ezb v4 but you can still use a v3 in them.
Rover kit , that's a top and bottom to make the whole Xl rover
- misc parts like wheels
Rover base only, that's the bottom half of the Rover frame with wheels and a flat tray on top all molded from 80A shore urethane plastic
Ok so i have all 6 nema 23 motors and all 6 smaller nema 17 motor blanks casted and now I can build around those. I will post some more napkin sketches soon.
Ok here's the 6 nema duplicates...
Mini Zero Rover
Here's the nema 23 blanks next to the regular size Zero Rover
Interesting! I am following this project.
:)
J
WOW Josh! when you do a model , you go all out ! Awesome! Is the rubber your using an RTV type?
Hi yes it is a RTV silicon rubber , 15 shore rating which means it is somewhat flexible.
Thanks for watching guys. The goal is for this platform to be well thought out and versatile. Building those options if thst we wish every other chassis had. I have tried over a dozen wheel types and that's one of the next things to be designed. Once there is a wheel design then the motor mounts will be designed to adjust ride height and have solid stiff suspension or off road with 100mm oil filled shocks. Two shocks for each wheel is possible for a heavy robot yet able to tackle terrain as well as the wild thumper. A advantage over thumper is the surface area will be 2.5 times greater on top for those who want to make their own top of the chassis.
Here are some napkin sketches for suspension and possible layout for the top of the rover. As I have previously mentioned the Zero Rover will be availavailable with various interchangeable add ons. Also I will sell it with a naked top for the diy people who just want a excellent start for a robot base.
The first is solid suspension with no shocks. This is for indoor use and mild outdoor ventures. This does not picture the Zero radius turn spindles.
This is the naked base with fully adjustable suspension. Using oil filled 100mm aluminum shock and springs , the right height and stiffness may be adjusted. Second is the adjustable "hard frame stop" . This adjusts the highest point the wheels can travel. In situations where heavy weight exceeds the shocks capacity the suspension rests on these stops. The shocks can be adjusted to intentionally rest the suspension on the frame but when uneven gaps in flooring are crossed the wheels reach down to maintain traction.
Here is the contemporary "smooth" rover top front view with comparison of hard and soft suspensions