pic: FRC488 - 2014 Octocanum Pod - Top

[Aren_Hill]

Originally Posted by Madison

Solidworks says they're 5.75 lbs. each.

I'd be quite surprised if whats pictured is that heavy, my butterfly module from last year was 2.38lbs with very little effort in regards to weight. From the looks of it there isn't much more here.

-Aren

[AdamHeard]

Originally Posted by Aren_Hill

I'd be quite surprised if whats pictured is that heavy, my butterfly module from last year was 2.38lbs with very little effort in regards to weight. From the looks of it there isn't much more here.

-Aren

We really wanted to run a octonum variant of this above module but it didn't match what we wanted to do with the game.

It would have been insanely clean. If anyone hasn't seen Aren's butterfly (which we ripped off), it's hand downs the cleanest setup anyone has run by a huge margin. That's why we stole it

[Electronica1]

Originally Posted by Aren_Hill

I'd be quite surprised if whats pictured is that heavy, my butterfly module from last year was 2.38lbs with very little effort in regards to weight. From the looks of it there isn't much more here.

-Aren

I think that weight included motors (and the weight you listed is lighter than one cim so i know the weight you listed does not include a motor).

[Madison]

Originally Posted by Electronica1

I think that weight included motors (and the weight you listed is lighter than one cim so i know the weight you listed does not include a motor).

Yes -- the 5.75 lbs. does include the weight of a CIM motor (which I have entered as 2.8 lbs.).

[wireties]

It is interesting and instructive to see the evolution of your drive from year-to-year. It is clever and well done. Good luck this year!

[Bryce2471]

I'm also curious why you decided to run your belt and gears on the same side of the mecanum wheel. It seems like if you ran the belt on the other side of the module, then your traction mode would have a wider wheel base and the cim shaft would take less side load. I'm sure you have good reasoning for why the module is made this way. I'm just curious to see what your thinking was.

[AllenGregoryIV]

Originally Posted by pfreivald

Okay, so you're about 1.5 lbs lighter than us, per pod, but (I think?) we have a greater gear reduction (7x) when switching to traction mode.

Thanks for sharing--it's always neat to see other teams' take on the same basic functionality.

Why such a low gear reduction, seems like 488's will be traction limited.

Originally Posted by Bryce2471

I'm also curious why you decided to run your belt and gears on the same side of the mecanum wheel. It seems like if you ran the belt on the other side of the module, then your traction mode would have a wider wheel base and the cim shaft would take less side load. I'm sure you have good reasoning for why the module is made this way. I'm just curious to see what your thinking was.

I would guess it is so that they don't have to cut the CIM shafts, if you run them normally the end of the shaft hits the mecanum wheel.

[Answer42]

Originally Posted by AdamHeard

We really wanted to run a octonum variant of this above module but it didn't match what we wanted to do with the game.

It would have been insanely clean. If anyone hasn't seen Aren's butterfly (which we ripped off), it's hand downs the cleanest setup anyone has run by a huge margin. That's why we stole it

Would you mind posting a pic of it? I'm curious now.

[AllenGregoryIV]

Originally Posted by Answer42

Would you mind posting a pic of it? I'm curious now.

They have a website with a really good description.
http://www.teamneutrino.org/seasons/...bot/butterfly/

Our octocanum modules this year were heavily inspired by team neutino's work.

[AdamHeard]

Originally Posted by AllenGregoryIV

They have a website with a really good description.
http://www.teamneutrino.org/seasons/...bot/butterfly/

Our octocanum modules this year were heavily inspired by team neutino's work.

This then nest in a single 2x3 (for us) or 3x3 (for them) tube which is also your frame. Real clean.

It's the lightest cleanest butterfly (that could be an octonum if hte tube was 4" wide) that anyone has done.

[Answer42]

Originally Posted by AdamHeard

This then nest in a single 2x3 (for us) or 3x3 (for them) tube which is also your frame. Real clean.

It's the lightest cleanest butterfly (that could be an octonum if hte tube was 4" wide) that anyone has done.

Very elegant. I'll definitely remember that one.

[pfreivald]

Originally Posted by AllenGregoryIV

Why such a low gear reduction, seems like 488's will be traction limited.

We're still playing with wheels to maximize our traction.

[Trent B]

Originally Posted by Aren_Hill

I'd be quite surprised if whats pictured is that heavy, my butterfly module from last year was 2.38lbs with very little effort in regards to weight. From the looks of it there isn't much more here.

-Aren

The solid 0.4lb Delrin wheel was definitely not doing it any favors with regards to weight.

[RobotDoktor]

Nice. I really like how compact the modules are. Ours are a lot longer, but we have 6" mecanums and 4x2 Colsons.