Results 1 to 6 of 6
  1. #1
    RC Qualifier
    Join Date
    Apr 2003
    Location
    Michigan
    Posts
    365

    Aluminum vs Plastic weight information

    As a Design Engineer, I design my machines in Inventor, a 3-D Parametric package. I was drawing some components for my Rustler and when I assigned the material to them I noticed something, for a 1/4" x 2" x 2" piece: Just thought I would pass this in case there are people are thinking that aluminum is lighter than plastic. Aluminum is stronger per pound.

    Aluminum = .098 lbs.
    UHMW (Plastic) = .034 lbs.
    Delrin (Plastic) = .051 lbs.

  2. #2
    RC Turnbuckle Jr. BeeniDAmeeni's Avatar
    Join Date
    May 2002
    Location
    Kite, Georgia
    Posts
    3,319
    So, a 2 pound strip of aluminum is tougher than a 2 pound strip of plastic? So you could have a 1 pound peice of aluminum be lighter, but comparable to strenght to a 2 pound peice of plastic?
    Get it? Got it? Good.
    Nitro Is Hazardous To Your Health.
    4x4 Jeep-Pede:
    http://monster.traxxas.com/showthread.php?s=&threadid=165913

  3. #3
    RC Qualifier
    Join Date
    Apr 2003
    Location
    Michigan
    Posts
    365
    Originally posted by BeeniDAmeeni
    So, a 2 pound strip of aluminum is tougher than a 2 pound strip of plastic? So you could have a 1 pound peice of aluminum be lighter, but comparable to strenght to a 2 pound peice of plastic?
    Yes Aluminum is stronger than Plastic.

    Aluminum is not lighter than plastic. Depending on what you choose you will sacrifice something.

    Example: Shocks... Aluminum are stronger but are heavier so if you are going for strength over weight go with Aluminum. But if Weight is more of a concert than strength go with stock plastic shocks.

    The weight difference between the shocks is not as big of a concern that a bumper would be. But used the shocks as a example because of the strength to weight ratio.

  4. #4
    RC Qualifier
    Join Date
    Jan 2002
    Location
    Pennsylvania
    Posts
    266
    Thats some good info. I already new that alum was heavier, but i didn't know the exactly numbers. Hopefully this will clear the air with people thinking aluminum is the platinum of the R/C world. Personally, for the weight gains, i would rather use plastic and replace it. And if you are a good driver... why would you be needing that extra strength
    what if the hokey pokey is what its all about?

  5. #5
    RC Qualifier
    Join Date
    Apr 2003
    Location
    Michigan
    Posts
    365
    Originally posted by Wildchyld999
    Personally, for the weight gains, i would rather use plastic and replace it.
    That was my thought as well, that was why I did the calculations. But I will probably go with Aluminum shocks, just because of the strength.

  6. #6
    RC Qualifier
    Join Date
    Jan 2002
    Location
    Pennsylvania
    Posts
    266
    well yea, alum shocks are a different story, imho. But a-arms and shock towers are useless unless you are doing insaine BL or nitro stuff. BTW to cheaply stiffen one's shock tower... use the nitro rusty one instead of the e-rusty one. There is a cross brace over the top which helps
    what if the hokey pokey is what its all about?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •