View Single Post
  #9   Spotlight this post!  
Unread 12-05-2014, 09:48
Monochron's Avatar
Monochron Monochron is offline
Engineering Mentor
AKA: Brian O'Sullivan
FRC #4561 (TerrorBytes)
Team Role: Engineer
 
Join Date: Feb 2007
Rookie Year: 2002
Location: Research Triangle Park, NC
Posts: 899
Monochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond reputeMonochron has a reputation beyond repute
Re: Turns out Helical Beam Couplers aren't meant to handle that much stress . . .

Quote:
Originally Posted by hzheng_449 View Post
Where does you team purchase beam couplings? I had the impression that helical beam couplings generally ran >$25, and I'd love to know where you can get them for less.
We got them for $6 from China on eBay. Shipping takes about a month (and is free), but as long as you plan ahead properly and commit to buying early then you can save a huge amount of money. In fact, I don't think a single fastener on our robot came from outside of China (aside from KOP and Vex ones obviously). Paying Lowes or Fastenal prices for anything other than stock metal just wasn't in the budget for us.

I'm interested to know the quality difference between the ones we got and a $45+ coupler from McMaster.

Last edited by Monochron : 12-05-2014 at 09:51.