pic: frame for monster

[Aren_Hill]

[cdm-description=photo]25865[/cdm-description]

[crazykid234]

could this be the start of a monster crab drive? (magic 8 ball says yes). Seriously though, what are the little cut-outs at the bottom of the frame for? Kudos for getting started before the season!

[Kim Masi]

Wow, that is a lot of box aluminum...looks like it could be very heavy

[Jack Jones]

what are the little cut-outs at the bottom of the frame for?

To relieve the pressure (hot gasses) from inside the square tube. Otherwise, the molten weld would blow out.

[Kellen Hill]

The frame is actually about 16 pounds. Our team is having a little comettion between two groups with two drivetrains to see which one works better.

[Dan Richardson]

The frame is actually about 16 pounds. Our team is having a little comettion between two groups with two drivetrains to see which one works better.

16 LBS! what thickness did you use!? Also you can typiaclly use drill holes for the relief don't need large cut outs ( just for next time ) Looks good tho, I've always loved the strength that these kind of frames give, especially with the extra confidence if you ram someone or something that it most likely won't fall apart. Looks good.

[Alex Golec]

To relieve the pressure (hot gasses) from inside the square tube. Otherwise, the molten weld would blow out.
I would agree with that, but it also appears that all of the cutouts are centered in each of the wheel chambers - perhaps this will be a mounting point for the lower bearings for each wheel assembly.

16 pounds, eh? Thats not too bad. And with bumpers, it looks like that frame will be able to take quite a beating.

_Alex

[Aren_Hill]

this frame is constructed out of 1x1x1/8th and 1x1x1/16th inch tubing
and the holes are for mounting some things not for gas since the endes of most tubes are with open or have a little slit left after welding. I designed all of this in inventor and we still have some interesting parts to put on such as some
dewalt threes speeds yes yes :D

edit: and yes its for a crab drive

[CraigHickman]

I'm guessing by the frame style, you guys are gonna have a 3 speed coaxial crab. Kudo's on going for it, and I'd love to see tons of pictures/movies, as I am designing one of my own.

[Alex Golec]

this frame is constructed out of 1x1x1/8th and 1x1x1/16th inch tubing
and the holes are for mounting some things not for gas since the endes of most tubes are with open or have a little slit left after welding. I designed all of this in inventor and we still have some interesting parts to put on such as some
dewalt threes speeds yes yes :D

edit: and yes its for a crab drive

3-speed crab? You definitely have my attention. Will the transmissions be mounted within the wheel module or will they remain stationary with a rotating connection (e.g. bevel/miter gears) to transfer the power?

[Aren_Hill]

its coaxial with cim and dewalt mounted vertically beside the module and getting to the wheel through some sprockets and miter gears
the three speed should give us 3fps, 7fps and 12fps
this frame will end up weighing about what our previous 2 years have (which i haven't been on that build team) but with a 3speed swerve

[Dave Scheck]

That frame looks very familiar...
http://www.wildstang.org/gallery2/v/2003/2003_Robot/2003_02_18_Robot_004.jpg.html
http://www.wildstang.org/gallery2/v/2002/2002_Invitational/2002_Invitational_Practice/P2160143.jpg.html

[Aren_Hill]

i must admit dave i've had some good inspiration
my favorite bot of your guys was 2003
and these guys have been of some inspiration
http://www.chiefdelphi.com/media/photos/25328
and http://www.chiefdelphi.com/media/photos/25244

or just search cdmedia for crab or swerve and i've looked at all of those

[colin340]

could this be the start of a monster crab drive? (magic 8 ball says yes). Seriously though, what are the little cut-outs at the bottom of the frame for? Kudos for getting started before the season!
or maybe balldrive

[RyanN]

The only problem with building and welding a frame together right now is that we have really no idea what the game is going to be. They may want a wide robot or a long robot. That's what happened to us last year, we had a built frame before the building season, but after we saw the game, we wanted a wide robot. Just keep this in mind. Right now we have a frame built, but not welded. Also our design makes it easy to change it from long to wide.

[Cory]

The only problem with building and welding a frame together right now is that we have really no idea what the game is going to be. They may want a wide robot or a long robot. That's what happened to us last year, we had a built frame before the building season, but after we saw the game, we wanted a wide robot. Just keep this in mind. Right now we have a frame built, but not welded. Also our design makes it easy to change it from long to wide.

You can't use any frame you make now, so it really doesn't matter if you have a wide frame prototyped now, and the game turns out to need a long frame.

[Aren_Hill]

I forgot to mention the reason i'm making this is basically last season all parts of our robot were pretty good besides the drivetrain. As a chassis driver all i could do is either plant and sit there or run away. So basically i would like to help design what i'll be driving this year and actually have some get out of the way power in the form of a 3 speed swerve that can push and fly across the field all in one package that weighs the same as our previous frames. so basically i'm just wanting something to work with.