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View Full Version : best plasic to us????



Bug57
01-13-2009, 03:04 PM
I would like to know whats the best plasic to mill with? theres hundreds out there that i see and would like to hear from some one that might have got some experience in this area??

Rudolph
01-13-2009, 04:13 PM
Depends on what you're planning to make with it. If you're just prototyping buy the cheap proto stuff. If you're after finished parts, it still depends on what your goal is.

That said, I've used Delrin often, as well as Teflon blocks.

No0bert
01-13-2009, 07:19 PM
HDPE unless your laser cutting or using a waterbed, in which case they will melt.

lnxfergy
01-13-2009, 08:43 PM
I'm a big fan of expanded PVC sheets, they are cheap, lightweight and easy to work with. Works great for flat things like robot decks and arms and small brackets. You can cut them with just about anything - coping saw, bandsaw, etc. A 12"x12" sheet 1/4 thick is about $3, available in many colors. I've attached a pic of one of my robots that uses EPVC and metal standoffs for the entire frame.

-Fergs

http://forums.trossenrobotics.com/attachment.php?attachmentid=1021&stc=1&d=1231900925

Adrenalynn
01-13-2009, 09:27 PM
And a dang purty 'bot it is too!

lnxfergy
01-13-2009, 09:38 PM
I should have also pointed out that you can more complex with EPVC to make things like boxes and fully contained bots - I especially like to combine EPVC with those 1/4" milled aluminum bars from Lynxmotion to make 90 degree corners - http://www.lynxmotion.com/Product.aspx?productID=132&CategoryID=6

http://forums.trossenrobotics.com/gallery/files/1/7/6/8/xrb3-small.jpg

Bug57
01-14-2009, 03:18 PM
im making a robotic hand with plasic. Ill be using plastic rod for the fingers and plate for the palm. i will be milling the finger joints with a ( end bit). The use of the hand is for picking up...like a pop can and so..lol

Thats a nicely done bot Inxfergy!! real clean cut..i like that!!