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-   -   Tem 973 Pruhzents: SKYSTALKER-ER (http://www.chiefdelphi.com/forums/showthread.php?t=139064)

Akash Rastogi 09-11-2015 01:27

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by Jared Russell (Post 1504053)
This is definitely the best FRC parody of an FRC parody I have seen.

How much deeper can we go?

Aren Siekmeier 09-11-2015 02:44

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by JackFisher (Post 1504074)
realized video was shaky and cropped, so I fixed it and its all better now.

I thought that was on purpose...

JohnSchneider 09-11-2015 03:43

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
I almost fell out of my chair when I saw you painted it blue.

Andrew Schreiber 09-11-2015 08:47

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by JackFisher (Post 1504057)
They're rc car tires.

Any tricks on assembling? The ones we used last year on one of our intakes just took forever.

Sperkowsky 09-11-2015 09:01

The fact that that robot actually works better then anything my team has ever built is kinda sad.

JackFisher 09-11-2015 12:23

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by Andrew Schreiber (Post 1504095)
Any tricks on assembling? The ones we used last year on one of our intakes just took forever.

They do take awhile, but if you assemble then right the first time, they generally don't open up over use. Quality of hubs certainly affects this. We've only had issues with wheels when they weren't initially assembled correctly.

AdamHeard 09-11-2015 12:28

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by Andrew Schreiber (Post 1504095)
Any tricks on assembling? The ones we used last year on one of our intakes just took forever.

If you've done it once or twice and have the right tool, it only takes 2-3 minutes and it will never slip. We ran crazy torque on them in 2011 and 2014 and only ones that were assembled with the bead clearly popping out ever slipped.

The tires are 1.9 and 2.2 Chisels from Proline, on Axial 1.9 and 2.2 8 Hole beadlock hubs. We directly hex broach the axial hubs (which yes, unfortunately means you have to buy new hubs each year for comp bot for an essentially COTS part).

Andrew Schreiber 09-11-2015 14:28

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by AdamHeard (Post 1504123)
If you've done it once or twice and have the right tool, it only takes 2-3 minutes and it will never slip. We ran crazy torque on them in 2011 and 2014 and only ones that were assembled with the bead clearly popping out ever slipped.

The tires are Axial 1.9 and 2.2 Chisels from Proline, on Axial 1.9 and 2.2 8 Hole beadlock hubs. We directly hex broach the axial hubs (which yes, unfortunately means you have to buy new hubs each year for comp bot for an essentially COTS part).

Those look about like the hubs we used (Brando brought 'em in to try)

Guess it's just a practice thing, I remember it getting easier over time but it still seemed to be a pain. Better lighting might have helped.

Nathan Streeter 09-11-2015 14:32

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Very nice! It looks (and performs?) frighteningly like a simplified 254 robot... Just shows how much good design can get you, even if 'build quality' isn't the finest.

Mitchell1714 09-11-2015 14:43

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Its weird to think about how this video session started almost 3 years ago when 118 just wanted to print some copies.

TravusCubington 09-11-2015 15:34

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 

Munchskull 09-11-2015 16:34

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
After looking at that robot a little more it occurred to me that there must be some complex math driving the angle of that curved back. I was woundering if someone might be able to outline that for me.

AdamHeard 09-11-2015 17:11

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by Munchskull (Post 1504148)
After looking at that robot a little more it occurred to me that there must be some complex math driving the angle of that curved back. I was woundering if someone might be able to outline that for me.

Intake portion is a 25" radius, then there is ~9" of straight vertical, then the shooter is 23" radius.

Not complicated at all ;)

Could be laid out by hand easily w/ some straight edges, some string and a marker.

Knufire 09-11-2015 17:13

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Quote:

Originally Posted by Munchskull (Post 1504148)
After looking at that robot a little more it occurred to me that there must be some complex math driving the angle of that curved back. I was woundering if someone might be able to outline that for me.

CAD sketches are your best friend.

cxcad 09-11-2015 19:42

Re: Tem 973 Pruhzents: SKYSTALKER-ER
 
Can you post some documentation about the process of building this? I think this would shed some light on the prototyping process of the best of teams.


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