pic: 1018 - Pic 4 - Welded Chassis

[Stu Bloom]

Originally Posted by Barry Bonzack

Look at all the triangles! That thing is structurally sound. How much does it weigh?

Yes it is quite sturdy. We should be able to stand up to all the pounding pretty well this year. The weight of the welded chassis as shown is about 26.5 pounds - That will certainly force us to minimize weight up top, helping us to keep our CG low for ramp-climbing.

Originally Posted by Greg Needel

The real question Stu is who is going to break all those edges ...i hope you have some committed students on your team or a good angle grinder

Yup Greg, We do have a couple of students who have become 'best friends' with our de-burring tools

Originally Posted by Starke340

great looking design. why is one of the triangle support pieces (on the front or the back?) rounded when one is still pointed? looks like a good robot in the making to me.

Originally Posted by Erics626

We ran out of material, and had to cut it a bit short!

Well ... sort of, Eric. While optimizing the cutting layout of all the pieces we needed to cut, that corner fell off the edge. The last inch or two of that point is non-functional anyway ... unless we were planning to "spear" the balls

[Rick TYler]

Originally Posted by Stu Bloom

Yes it is quite sturdy. We should be able to stand up to all the pounding pretty well this year. The weight of the welded chassis as shown is about 26.5 pounds - That will certainly force us to minimize weight up top, helping us to keep our CG low for ramp-climbing.

Twenty-six pounds? Our chassis team was getting the vapors when ours came in at 16. They were shooting for 12 or 14. It's our first custom-welded frame, made from 4-inch square 6061 T6 tubing. It has LOTS of speed holes, which concerns me because there is nothing left to drill out at the last minute.

[Stu Bloom]

Originally Posted by Rick TYler

Twenty-six pounds? Our chassis team was getting the vapors when ours came in at 16. They were shooting for 12 or 14. It's our first custom-welded frame, made from 4-inch square 6061 T6 tubing. It has LOTS of speed holes, which concerns me because there is nothing left to drill out at the last minute.

Yes, its heavy. But remember that contact is "encouraged" this year, and all below 8-1/2" from the ground. We will have all custom aluminum sprockets, NO pillow blocks, and extremely lightweight materials up top. We will not have a problem coming in under weight.

We do know how to manage weight ... don't forget, many people were amazed that this bot came in under weight ...

[sanddrag]

Originally Posted by Stu Bloom

The weight of the welded chassis as shown is about 26.5 pounds

How on earth can you build the rest of your robot and stay in the weight limit? Our base frame, 6 wheels, and 8 pillow blocks is only 10 lbs.

[Rick TYler]

Originally Posted by sanddrag

How on earth can you build the rest of your robot and stay in the weight limit? Our base frame, 6 wheels, and 8 pillow blocks is only 10 lbs.

TEN pounds? You have to have at least three pounds of wheels and a pound of pillow blocks. Your frame itself only weighs six pounds? What's it made of?

(A frame of glass/carbon fiber struts could come in at that kind of weight.)