View Single Post
  #5   Spotlight this post!  
Unread 16-02-2012, 08:58
DavisDad's Avatar
DavisDad DavisDad is offline
MechE
AKA: Craig Rochester
FTC #8470 (Team Technado)
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2012
Location: Boston
Posts: 317
DavisDad will become famous soon enoughDavisDad will become famous soon enough
Re: How many rules does this catapult design break? :)

Roger that on the safety. I've copied the Mathews mount ("limb pocket"), prestress and string angles as closely as possible. The cylinder (this one is temporary, final will be 1-1/2 bore, 6" stroke) adds a load to string to string during a dry-fire. I think the most likely failure mode would be pieces flying of the pivot arm.

Thank you all for the feedback. This may be a secondary launcher to our already developed spinning wheel shooter. If weight allows.




Last edited by DavisDad : 16-02-2012 at 11:06. Reason: typo
Reply With Quote