pic: 7.5" tall robot, ready to shoot
 

Re: pic: 7.5" tall robot, ready to shoot
 

So would this theoretical robot be able to cross under the low bar while holding a ball? It seems like in order to do anything useful it needs to be in the taller position.

Re: pic: 7.5" tall robot, ready to shoot
 

I like it.
I brought up a "collapsing" shooter idea after build season, as a side project.
My team all shook their heads. :rolleyes:

Re: pic: 7.5" tall robot, ready to shoot
 

Is there anything locking the shooter in position when it is in the firing position? It seems at least plausible that the ball being forced into the shooter could cause the shooter to give a little bit while firing, and generally you want all the rigidity you can get with such a system for consistency reasons.

I like the intake and shooter articulating together as it probably adds a lot of consistency to the ball loading.

Just curious - how are you avoiding this mechanism tangling with the battery cable when it folds up?

Re: pic: 7.5" tall robot, ready to shoot
 

100%. As long as the hood is down (which it is as long as its not shooting the ball) the robot can go under the low bar with ease.

I'm surprised more teams didn't go with the 4-bar. It made it very easy to fit into a tiny envelope. If I had 16" to work with I could can done everything very easily indeed.

The shooter can brace against the bumper while shooting. The bumpers are the biggest things on the 'bot, so I did not include them in the very nice render.

Battery cable- whats that? I see no cables...
Realistically though, the battery wires can easily just go down the sides of the battery without hitting anything or risking a nasty break.

Re: pic: 7.5" tall robot, ready to shoot
 

According to the rules, the ball has a diameter of 10". I just wanted to know if the intake folds up or something and the robot chassis itself? Just a clarifying question. :D

Re: pic: 7.5" tall robot, ready to shoot
 

The intake folds up so that the robot can be 7.5" tall. I couldn't find a good way to keep it short and have a good intake while the ball is in the bot.

Re: pic: 7.5" tall robot, ready to shoot
 

Love the battery packaging.

Re: pic: 7.5" tall robot, ready to shoot
 

I don't see any clearance for a tube fitting on your hood cylinders(picture). As it stands, you'll only be able to supply air to the retract side of the cylinder. It looks like you might have enough room to just space your shooter bearing plates a little more to clear a fitting, but I haven't looked at the CAD closely enough to see if this is possible.

Other than that, I really like the usage of the four-bar. I love seeing neat linkages on robots.

Re: pic: 7.5" tall robot, ready to shoot
 

Thank you, I was very pleased with it too. :P

Nooooo does this mean I have to re-render!?
I think I can push the mounting plates out by another 3/8" at least, or add a hole to allow the fitting in.
Thank you!

Re: pic: 7.5" tall robot, ready to shoot
 

A simpler option might be to use the 90 degree rotated ports version of the cylinder (Bimba offers this for their rear pivot cylinders, I'd imagine other manufacturers do as well).

Re: pic: 7.5" tall robot, ready to shoot
 

Given that it's already a custom 3.6" stroke cylinder, this is a great option actually.

Re: pic: 7.5" tall robot, ready to shoot
 

Is it really not possible to go to a standard size here? It can't be that hard to add .1" to the length of your ball joint or something.

Re: pic: 7.5" tall robot, ready to shoot
 

Because of the tiny packaging and cramped spacers, especially near the shooter/hood, I couldn't make it 3.5" or 4". 3.75" is a custom size anyway, or I would have to use metric. I did try to use a standard size, but the layouts just didn't work out.

Re: pic: 7.5" tall robot, ready to shoot
 

How well would those little read Mecanum wheels on the side of the intake work for directing balls closer to the intake? Do they make a noticeable improvement for ball collection?