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
I think I know which shocks you are using. I believe I found online. I really like the idea of this platform and have been watching the thread.
I'm probably not as much of a community member as I feel like I am because I mostly just lurk but how far along are you on suspension development and are you open to suggestions on it? I wouldn't call myself a suspension expert but I have raced both onroad and offroad R/C and have some experience working with this kind of small scale suspension.
Sure if you have suggestions I have open ears.
Ok. Here goes....and only because the thread title says "community feedback"
From looking at your sketches:
You probably don't want to do the suspension underneath the main body like that if is supposed to be an "off road" version. The suspension arms being underneath like that will reduce ground clearance and will have the potential to get hung up on rocks, sticks, and the like. The bottom should be as flat and smooth as possible to get over those kinds of obstacles without getting hung up on them.
You show the shocks being mounted in a straight up and down configuration. Most R/C every vehicle I have used has the lower part of the shock outside of the upper part of the shock. Having the shock straight up and down creates side loads on the shock as the suspension arm moves up and down through it's arc.With the shock at and angle it works much more efficiently. Also, with the shocks at an angle, you have the added benefit of the shocks being able to help stabilize the vehicle from side to side. A straight up and down shock configuration is not very stable in that regard. The picture below shows what I am talking about.
Anyways....thats just my 2 cents.
Hello everyone , summertime is great for distracting you from the cool things that usually happen indoors. Thankyou for the feedback. I believe I will print a bracket that allows for 3 or 4 possible mounting points for the top of the shocks. I just rebuilt a new pc and now I must order replacement parts for the maker bots because they developed an epic clog all on the same day. Given the interest in ez robot projects I decided to go back to college so I have had a busy month running countless errands. Now that I have a 3d machine back agian I can get going on 3rd design and printing all the misc parts for zero rover. My last update of any significance was the 100mm shocks that came in for my suspension. After Some Thought I Like The Smaller NEMA motors as a standard then larger ones as a heavy duty option that I imagine will not be as popular.
Alright , slight update. The " standard" sized version of zero rover I am working on will use Nema 17 motors. I ordered 6 of them as well as 6 controllers to run them. Also I realize at time we don't need the nicest setup to start out so I'm going to model alternate motor mounts that use a standard servo instead. That way for the sake of budget someone could afford the base if the only other alternative was a Dagu Rover 5 ( not EZR Roli)