View Single Post
  #3   Spotlight this post!  
Unread 17-03-2013, 22:50
rahilm's Avatar
rahilm rahilm is offline
Registered User
AKA: Rahil Mehta
FRC #0668 (The Apes of Wrath)
Team Role: Mentor
 
Join Date: Oct 2009
Rookie Year: 2007
Location: San Jose, CA
Posts: 116
rahilm has a spectacular aura aboutrahilm has a spectacular aura about
Re: CNC Plasma Cutting Chassis

Quote:
Originally Posted by Wiifi View Post
We've cut parts in steel using a plasma cutter. We haven't had any problems with the parts - they were cut very accurately. Occasionally we have to drill a small hole out though because the plasma cutter doesn't recognize it enough/give it enough power. I think that is due to our configuration of the device, some setting we need to change somewhere.

On a side note has anyone ever plasma-cut aluminum? We were planning on doing it sometime this week and could use some pointers.

Here is our frisbee-launcher being cut this year http://www.youtube.com/watch?v=RUpf_stUnaw
Yep, we do a lot of stuff out of aluminum.

Not sure what system you have, and there are a lot of variables at play here, but what we've found is that it's better to run slower feed rates than suggested by the manufacturer, as this leads to less beveled edges. This will cause more dross buildup, so you will have to do some sanding/filing afterward.

Feel free to ask if you have any questions.
__________________
Team 668 - Apes of Wrath - 2008-2011
Team 668 - Apes of Wrath - 2011-Present (Mentor)