View Single Post
  #1   Spotlight this post!  
Unread 25-04-2016, 15:39
asid61's Avatar
asid61 asid61 is offline
Registered User
AKA: Anand Rajamani
FRC #0115 (MVRT)
Team Role: Mechanical
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Cupertino, CA
Posts: 2,221
asid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond repute
Re: pic: GBX-139, budget swerve

Quote:
Originally Posted by Colin Small View Post
Awesome design!

Do you have the drive shaft to the bevel gears going through the module turning gear?
Yup! This is how 1323 did it last year, and is the lightest way I've found to make a swerve drive.

Quote:
Originally Posted by AlexanderTheOK View Post
"It is made for a 70-80lb demo chassis, although it is possible to convert it to a competition design by swapping bevel gears and motors." -asid61
Quote:
Originally Posted by Conor Ryan View Post
Any evidence (either way) that the delrin/acetal bevel gears can hold up for a full event?

Also, are you sure you want a 775 as your main drive motor? Your chance of burn out is much higher and you really don't want to take that type of risk. The way the motor is designed makes it a much smarter choice for any application where it won't be stalled for a significant length of time. Although you probably won't stall much in a swerve drive, you will be running close to stall conditions frequently and that will generate a large heat load.

Awesome execution either way.
Quote:
Originally Posted by cad321 View Post
The OP said that this was meant for a demo bot (a light one at that). I don't think the goal is to hold up to full on aerial assault defense.

That's how I saw the module, correct me if I'm mistaken OP. Love the design BTW.
Bingo. Heck no, this won't hold up for a competition. But if a team wants to try swerve programming, this would be my preferred module. By swapping, I meant swapping for steel gears.
A few teams did run 775pros (rip Mittens) this year for drive motors, with varying results. However, as this is made for a lighter demo bot, I'm not worried about a demo bot that won't see defense. If I had to compete, I would convert to a CIM drive for sure.
__________________
<Now accepting CAD requests and commissions>


Last edited by asid61 : 25-04-2016 at 15:48.
Reply With Quote