pic: WCD Chassis Idea

[TJ Cawley]

usually how many CIM or FP motors are allowed during the FIRST competitions? I heard during the build for Breakaway that we could only use 5 CIM motors. So there would be a shortage of one motor for that system. plus, that uses up all of your allowed CIM motors. so there would be a bit of a sacrifice using those transmissions if your team needed a strong motor for another mechanism.

[Rion Atkinson]

Originally Posted by TJ Cawley

usually how many CIM or FP motors are allowed during the FIRST competitions? I heard during the build for Breakaway that we could only use 5 CIM motors. So there would be a shortage of one motor for that system. plus, that uses up all of your allowed CIM motors. so there would be a bit of a sacrifice using those transmissions if your team needed a strong motor for another mechanism.

Typically you are only allowed 4 CIMs. A lot of teams use all 4 in the drive train. The plan for this gearbox would be to use 2CIMs and 1fp for each one.

Can anyone tell me the typical limit on Fisher Price motors? (Or is there not one?)

[Chris is me]

Originally Posted by Formerly Famous

Typically you are only allowed 4 CIMs. A lot of teams use all 4 in the drive train. The plan for this gearbox would be to use 2CIMs and 1fp for each one.

Can anyone tell me the typical limit on Fisher Price motors? (Or is there not one?)

I always try and model stuff with CIMs anywhere I want to put FP+AMs. That way no matter what iterations you do involving switching motor position you know the biggest possible motor will fit everywhere.

[ttldomination]

I just meant it was a bit of stretch simply because we've been allowed to use roughly 2 FPs, but if this an off-season project, then do what you wish.

[Mike Schreiber]

Originally Posted by Formerly Famous

Typically you are only allowed 4 CIMs. A lot of teams use all 4 in the drive train. The plan for this gearbox would be to use 2CIMs and 1fp for each one.

Can anyone tell me the typical limit on Fisher Price motors? (Or is there not one?)

It is good engineering practice to know your resource limitations before you start to design something. RTFM please.

[Rion Atkinson]

Originally Posted by Chris is me

I always try and model stuff with CIMs anywhere I want to put FP+AMs. That way no matter what iterations you do involving switching motor position you know the biggest possible motor will fit everywhere.

You have a very good point. I'll be sure to take that into account.

Originally Posted by ttldomination

I just meant it was a bit of stretch simply because we've been allowed to use roughly 2 FPs, but if this an off-season project, then do what you wish.

It's not really a project. More of a "I'm bored and need something do, oh look solidworks is open" type thing.

Originally Posted by ICanCountTo19

It is good engineering practice to know your resource limitations before you start to design something. RTFM please.

Ahahahaha! I would love to point out your new favorite smiley ->

Also, if you would love to quiz me on this years game. Go for it, and be shocked. I am the only one that read the manual this year, so I know this stuff. I just have a tendency to forget this after 3 months.

Know some background info before making assumptions.

[Mike Schreiber]

Originally Posted by Formerly Famous

Also, if you would love to quiz me on this years game. Go for it, and be shocked. I am the only one that read the manual this year, so I know this stuff. I just have a tendency to forget this after 3 months.

Know some background info before making assumptions.

I'm going to start with

How many FP motors were allowed?

"We know what we have, and what we can do. Lets start with that."

Brushing up on the rules generally helps the design along.

[Rion Atkinson]

Originally Posted by ICanCountTo19

I'm going to start with

How many FP motors were allowed?

"We know what we have, and what we can do. Lets start with that."

Brushing up on the rules generally helps the design along.

Okay you have a good point. But the way you came a cross seemed high and mighty; which I tend to have issues with. I agree. I could have gone looking. But sense we were on the topic, it was quicker just to ask the question sense i have other things to be doing as well. And seeing as I don't even have a team right now, or the means to make this. I don't expect the design to even come to life, so I wasn't exactly worried about the rules of how many.

[Chris is me]

Originally Posted by ICanCountTo19

I'm going to start with

How many FP motors were allowed?

"We know what we have, and what we can do. Lets start with that."

Brushing up on the rules generally helps the design along.

The rules that haven't been released yet?

[Andrew Schreiber]

Originally Posted by Chris is me

The rules that haven't been released yet?

Or make them up. Adding constraints to your designs will cause you to think of interesting solutions. Say for example you don't want to use wheels to move, cad a solution to that. Or the ever popular Jello game, figure out how to move on Jello. Yeah letting your imagination go wild is great but without constraints your work is worthless as both a practical design and as an effective mental exercise.

Some suggested constraints:

Sub 30lb drive train (INCLUDING electronics)

Modular drive train

Drive train that can accept multiple types of wheels and still remain functional (Think mecanum or 6" plactions)

Get away from the all aluminum designs.

Robot that can traverse a 6" step (using 4" wheels).

Robots that could move up a wall.

Basically let's try to get away from the design mantra of Copy 254 that I keep seeing. "Oh, I know, let's all make pretty renders of basically the same darn thing" Show some creativity, show some uniqueness. You know the nonadrive was designed by a student over the summer right? That is new and I would LOVE to see something like that. Even if it has no practical use right now.