![]() |
pic: Team 2502 Chassis Teaser
|
Re: pic: Team 2502 Chassis Teaser
looks verrrry heavy...
|
Re: pic: Team 2502 Chassis Teaser
it seem too heavy
:eek: |
Re: pic: Team 2502 Chassis Teaser
How heavy is heavy? With gearboxes, motors, electronics, the calculated weight is 50lb...
And I can lift this with one arm. Easier to lift with two arms.. |
Re: pic: Team 2502 Chassis Teaser
For sake of comparison our chassis with 4 CIMs, mechanum wheels and all 4 gear boxes is less than 35 pounds...
For what it's worth, we've gone the 80/20 route. While it's great for prototyping and testing, we've found it's far too heavy for competition use. We've since switched to welded thin-wall steel tubing and it seems to work quite well. |
Re: pic: Team 2502 Chassis Teaser
It does look a bit heavy, But it also looks very strong! Good work from team 3082 (Minnetonka)! I can't wait to see this at 10,000 Lakes! What drive train are you using? It looks like it could be a swerve...Well I gues I will see in two months ::safety::
|
Re: pic: Team 2502 Chassis Teaser
Nice chassis. One of the coolest uses of extrusion I've seen so far. Though that's not saying much. That's a lot of material, but it's material fairly low, which should be good for your CoG.
I'm intrigued with the wide orientation. Can't wait to see the rest of it, so I know why you guys took that route. |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
50lbs with all electronics is plenty light, I think. Personally aiming for a 70 pound lower deck / 110 pound robot. |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Looking good :cool:
Interested on the wide base configuration |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
I will weigh it this coming monday.
And we do have a very interesting wide-configuration that will be super weird but we hope to have work out! And no swerve this year. We thought that whatever we could make would have too low of a clearance to go over the bump. Hm, did I give too much away? |
Re: pic: Team 2502 Chassis Teaser
Quote:
4 Cims is 10 Lbs. 4 6" Mecanums is 6.2 lbs. 4 gearboxes is anywhere from 6-10 lbs. Making your frame only 12.8 lbs. max Our frame is pretty bare essentials out of aluminium and its at 18lbs. |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
We have aluminum and steel welding machines here. and steel welding is so much easier. |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
But someone earlier brought up low CG -- and yes, that's one of our main focuses. We are doing direct drive with Banebots Planetaries and we're trying to achieve super low CG. |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
One of the heftiest frames I have seen this year.
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
I've made FSAE car frames with largely .065"/0.045" walled round tubes. 0.035"x0.750" square tube would be plenty strong enough for a FIRST robot. And no strength loss from welding FTW! Unfortunately my team didn't have the facilities to make a frame like that this year :mad: |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Team 1208 loves 80/20.
Our completed robot this year has a kicker, lifter, ball collector and climbs the bump. It just weighed in at 116 pounds. |
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
Quote:
|
Re: pic: Team 2502 Chassis Teaser
80-20 can be a fine material to use for a frame
so can many other things... One of the neatest things in FIRST is that there is no ONE RIGHT WAY to do anything!! My own experience with 80-20 was from my own mistakes early on... I didn't make sure everything was always tight.... or use lock tite on the connections... When my old team started using 80 20 by bolting through and making our own brackets we had much better success... I really like the comments I am hearing about using steel tube... I think we will investigate that next year.... sounds like an interesting solution.... thinner steel vs thicker aluminum Ease of welding.. vs difficult welding... Worth looking at.... it must work.... thousands of bicycles and cars use it thanks for the great suggestions... Your 80-20 frame looks pretty cool!!! good luck and we will see you on the field!! |
Re: pic: Team 2502 Chassis Teaser
Quote:
Our dream has always been able to weld a clean aluminum/steel tubing together to make one of those sick chassis that are awed everywhere, but we currently don't have any way practical method or place to weld, nor do we have the experience to. That's our long-term goal -- to make a sick and clean aluminum/steel tubing chassis. But until we get enough practice over the summer or something, we're sticking with 80/20 since it's so easy to get cut and assemble (assemble not so easy but probably easier than welding at this point). :) Thanks, Keehun |
Re: pic: Team 2502 Chassis Teaser
This teaser made me want to get a burrito.
|
| All times are GMT -5. The time now is 01:43. |
Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi