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-   -   pic: 1678 Offseason Robot Progress (http://www.chiefdelphi.com/forums/showthread.php?t=151917)

nuclearnerd 17-10-2016 23:48
Re: pic: 1678 Offseason Robot Progress
 
I'm guessing one of the missing mechanisms is something to hold the ball in the arm cup when driving? Or does the intake do that as well? Can't wait to see the whole thing - please make a release video!

Harrison.Smith 18-10-2016 01:08
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by nuclearnerd (Post 1612272)
I'm guessing one of the missing mechanisms is something to hold the ball in the arm cup when driving? Or does the intake do that as well? Can't wait to see the whole thing - please make a release video!
A release video would be sweet!

This robot is looking awesome I cannot imagine the headaches y'all had fitting everything in a size similar to Mittens, but without the arm. Looking forward to seeing this at Madtown.

DaveL 18-10-2016 01:28
Re: pic: 1678 Offseason Robot Progress
 
The things that caught my eye are the compact compressor bracket and the wheels.

It looks like you cut openings in the polycarb and then bent it.
How did you bend it? Was it heated in an oven and then put into a form?

On the wheels, they look worn down. Did you sand off tread to make it turn easier?

Dave

jlbimson 18-10-2016 10:23
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by Bryce2471 (Post 1612235)
Did you build a functional prototype of the catapult with all these articulations?
We built a catapult prototype, but not with the adjustable stop, scoop, or turret.
Quote:
Originally Posted by nuclearnerd (Post 1612272)
I'm guessing one of the missing mechanisms is something to hold the ball in the arm cup when driving? Or does the intake do that as well?
There will be a pair of omni wheels that help to hold the ball in place, and pivot downwards when firing.
Quote:
Originally Posted by DaveL (Post 1612292)
It looks like you cut openings in the polycarb and then bent it.
How did you bend it? Was it heated in an oven and then put into a form?

On the wheels, they look worn down. Did you sand off tread to make it turn easier?
We cut the polycarb on our CNC router and made the bends using a heat gun and a press/break. The wheels are just used ones from the season, nothing special.

marshall 18-10-2016 10:24
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by jlbimson (Post 1612203)
We got those by accident during the season, and are just trying to get rid of them.
Got a part number or link to them? I haven't seen those before but they look intriguing.

Knufire 18-10-2016 11:55
Re: pic: 1678 Offseason Robot Progress
 
Blind Rivet Supply sells a wide assortment, they'll be labeled as "large flange" rivets.


RoboChair 18-10-2016 12:20
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by jlbimson (Post 1612329)
We built a catapult prototype, but not with the adjustable stop, scoop, or turret.
Well, we did prototype the adjustable scoop, just as a manual adjustment.

Quote:
Originally Posted by marshall (Post 1612330)
Got a part number or link to them? I haven't seen those before but they look intriguing.

Fastenal is where we got them.

araniaraniratul 19-10-2016 01:15
Re: pic: 1678 Offseason Robot Progress
 
Definitely a swing away from the usual simple swiss knife style, but I love it. Wish I could be at Madtown!

araniaraniratul 19-10-2016 01:19
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by DaveL (Post 1612292)
The things that caught my eye are the compact compressor bracket and the wheels.

It looks like you cut openings in the polycarb and then bent it.
How did you bend it? Was it heated in an oven and then put into a form?

On the wheels, they look worn down. Did you sand off tread to make it turn easier?

Dave
You know you've made it big when people assume every imperfection is genius!

Bryce2471 12-11-2016 18:11
Re: pic: 1678 Offseason Robot Progress
 
I intended to watch this robot play at Madtown, but I apparently tuned in too late.
How did it turn out? What were the learning experiences?

T^2 12-11-2016 18:24
Re: pic: 1678 Offseason Robot Progress
 
It was pretty terrible

frcguy 12-11-2016 19:52
Quote:
Originally Posted by T^2 (Post 1616041)
It was pretty terrible

That's a little harsh. While it didn't perform fantastically, I still thought it was a phenomenal piece of engineering and thoroughly enjoyed seeing it.

jlbimson 12-11-2016 21:10
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by frcguy (Post 1616056)
That's a little harsh. While it didn't perform fantastically, I still thought it was a phenomenal piece of engineering and thoroughly enjoyed seeing it.
Not harsh at all, as it seriously didn’t work. I’m going to post a render and more details, including lessons learned, sometime next week.

ollien 12-11-2016 21:20
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by jlbimson (Post 1616060)
Not harsh at all, as it seriously didn’t work. I’m going to post a render and more details, including lessons learned, sometime next week.
Would you mind posting a model of that compressor bracket? I'd love to 3d print one of those.

Bluman56 12-11-2016 21:25
Re: pic: 1678 Offseason Robot Progress
 
Quote:
Originally Posted by jlbimson (Post 1616060)
Not harsh at all, as it seriously didn’t work. I’m going to post a render and more details, including lessons learned, sometime next week.
Seems like it was geared really fast. Was this the case or was there just no ramping code?


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