|
|
|
 Nothing beats the local hardware store :). - Mike Martus [more] |
 |
|
|||||||
|
||||||||
The model isn't quite done yet, but it's pretty close.
This is a rendering of our robot for the 2014 game. We have about half of one real robot assembled so far, but I've been too busy at meetings to take pictures or video. Maybe this week.
Remaining work includes firming up the catcher side walls and deployment. We have to work through some interferences with the catapult.
We'll also redo the catapult arm to allow for the use of bungee rather than surgical tubing, as the bungee abrades less easily and is more consistent over time.
I haven't yet modeled a soft eject, but there's space below the catapult for it. It'll pop the ball out of the robot gently for simple passes.
Discussion
view entire thread
04-02-2014 12:01
Chris_Elston
Re: pic: FRC488 2014 Robot Rendering
Madison - Nice robot from your team! Catcher part of your robot looks great along with the double floor pickup and of course what everyone else is focused on, shooting...
04-02-2014 12:12
ice.berg
Re: pic: FRC488 2014 Robot Rendering
WOW 
This is a design I totally did not consider. I really like the intake from both sides. For a short pass do you have to pop it out like a short shot or can you shove it out with your intake rollers for a rolling pass?
Great job on the CAD and overall design though, should be a fun robot to watch!
04-02-2014 12:30
1493kd
Re: pic: FRC488 2014 Robot Rendering
Looks great... Almost the same as what we were thinking.
04-02-2014 14:00
Madison
Re: pic: FRC488 2014 Robot Rendering
Thanks, everyone. It's only impressive if it actually works, though. 
The last of the parts we need were sent out to our amazing sponsor today, so we expect to have a completed robot by the end of the weekend. This past weekend, we were able to put the drive together and run it through some paces. We've also assembled and tested the final catapult linkage and the base assembly that rotates the collectors. So far, everything's looking good and coming together nicely.
The four pancake cylinders facing downward shift the octocanum drive modules onto traction wheels.
For a short pass, we'll have a 'soft eject' function that rolls the ball off the back of the catapult. We believe that'll be faster and more effective than trying to feed the ball back out of the collector. That's not in the model yet; we'll probably verify proof of concept tonight and it'll be in the model tomorrow.
This is definitely the most ambitious robot we've ever built. The support of a sheet metal shop has allowed us to design mechanisms in a way that we've never done before and really freed us from some of the constraints we've had in the past.
04-02-2014 14:46
techtiger1
Re: pic: FRC488 2014 Robot Rendering
Madison,
Kudos on the very ambitious design. The render looks very nice. Are there additional centering devices or rollers to get the ball centered on the shooter ? Good luck.
04-02-2014 15:31
Kristian Calhoun
Re: pic: FRC488 2014 Robot Rendering
Suddenly the Koons is 488.
Looking good!
04-02-2014 19:43
zsm150
Re: pic: FRC488 2014 Robot Rendering
Is you shooter mounted sideways? Possibly for strafing side to side to avoid the goalie?
04-02-2014 19:46
chmconkling
Re: pic: FRC488 2014 Robot Rendering
What CAD and rendering software did you use?
04-02-2014 19:54
Madison
Re: pic: FRC488 2014 Robot Rendering
|
Originally Posted by techtiger1
Madison,
Kudos on the very ambitious design. The render looks very nice. Are there additional centering devices or rollers to get the ball centered on the shooter ? Good luck. |
|
Originally Posted by zsm150
Is you shooter mounted sideways? Possibly for strafing side to side to avoid the goalie?
|
|
Originally Posted by chmconkling
What CAD and rendering software did you use?
|
04-02-2014 21:49
zsm150
Re: pic: FRC488 2014 Robot Rendering
|
Originally Posted by Madison
Yes, the catapult is mounted 90* from our drive's forward/backward orientation. Since it's an octocanum drive, we can reorient it very quickly and should be able to score as effectively as any other team
|
04-02-2014 21:59
Electronica1
Re: pic: FRC488 2014 Robot Rendering
|
Originally Posted by zsm150
Are you worried about weight with an octocanum? Our team tried it a few years back and it was insanely heavy and complicated
|
05-02-2014 11:38
FilthyArgonian
Re: pic: FRC488 2014 Robot Rendering
This does indeed look very familiar
05-02-2014 13:58
Madison
Re: pic: FRC488 2014 Robot Rendering
|
Originally Posted by zsm150
Are you worried about weight with an octocanum? Our team tried it a few years back and it was insanely heavy and complicated
|
|
Originally Posted by Electronica1
After a decent amount of designing, octocanum can be somewhat light, our my teams octocanum is around 28 lbs (this includes frame, wheels, pistons, modules, gearboxes, and cims). I think 488's octocanum should be a bit lighter than that because they are using custom one stage gearboxes, plastic 4 inch mecanum wheels, and their metal for their modules are a bit thinner than ours so I can see this being around 25 lbs.
|
Our first foray into the octocanum drive in 2011 -- and one of the first octocanum drives -- was nearer to 60 lbs., so this is a marked improvement.
05-02-2014 14:14
mwmac
Re: pic: FRC488 2014 Robot Rendering
Madison, I see a potential 3 ball auto???
view entire thread
Tags
loading ...