IPB

Welcome Guest ( Log In | Register )

4 Pages « < 2 3 4 
Reply to this topicStart new topic

Outline · [ Standard ] · Linear+

> question about resizes a lexan body

Kishkumen
post Jun 26 2007, 09:03 AM
Post #46


Moderator
*****

Group: Mod Squad
Posts: 2,088
Joined: November-24 02
From: California
Member No.: 1,547



The only time I used a vacuum former was in a sculpture class some years ago. But my results were the same as yours (not forming all the way around the body) until the instructor set me straight.

With styrene (dunno about lexan) you have to heat it until it sags in the frame. Then it will stop sagging and tighten back up. Then it will sag again. At that point you can let it sag and get softer (unless it's going to drop onto the heating element or something) and then put it onto the mold. Then it will suck onto the shape all the way to the bottom.

The stuff they chrome things with uses a process called electroplating. It isn't just painted on. That's why you can't find any kind of paint that shiny. But experiment with painting the inside of a clear body. It might look shiny enough with a perfectly flat surface (meaning the inside of the plastic since you'd be looking at the underside of the paint)


--------------------
A real patriot is the fellow who gets a parking ticket and rejoices that the system works.  -Bill Vaughan
Xmod ChevHELLe: Spinbrush Stage 2, chassis extension, 5-cell, armour plating.
Bit Winnebago, four ZZSEs, TC3 Saleen Mustang, foam track Victory for our troops!
Have you noticed that putting formulas into your posts is like holding a cross in front of vampires? -nascar8
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
hopperguy
post Jun 26 2007, 12:32 PM
Post #47


Forum Expert
*****

Group: Members
Posts: 1,140
Joined: February-21 07
From: Greenwood, IN
Member No.: 12,014



QUOTE(Kishkumen @ Jun 26 2007, 09:03 AM)
The only time I used a vacuum former was in a sculpture class some years ago.  But my results were the same as yours (not forming all the way around the body) until the instructor set me straight.

With styrene (dunno about lexan) you have to heat it until it sags in the frame.  Then it will stop sagging and tighten back up.  Then it will sag again.  At that point you can let it sag and get softer (unless it's going to drop onto the heating element or something) and then put it onto the mold.  Then it will suck onto the shape all the way to the bottom.

The stuff they chrome things with uses a process called electroplating.  It isn't just painted on.  That's why you can't find any kind of paint that shiny.  But experiment with painting the inside of a clear body.  It might look shiny enough with a perfectly flat surface (meaning the inside of the plastic since you'd be looking at the underside of the paint)
*



the styrene i heated for like 3 mins, i did it til it looked like it was thinner and it sagged alot.. i didnt have a problem with that forming, i was having a problem with the for sale signs not forming, but i guess it isnt the same kind of plastic or something..


--------------------
user posted image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
WRXSTi06
post Mar 4 2008, 01:06 PM
Post #48


Member
***

Group: Members
Posts: 447
Joined: August-9 05
From: Indianapolis,Indiana
Member No.: 9,626



it is very difficult to get a lexan body smaller but it is possible to do the easiest way is to get a vacum former but they are rather expensive that is really my only tip for ya but unless you got alot of money layin around then i dont know what to tell ya


--------------------
2 Xmods: Subaru WRX STi, F-150
5 Zip-Zaps: 1999 Mustang Cobra, 2004 Mustang Mach 1, 1965 Mustang Shelby-GT 500, 2004 Acura RSX, 2004 Acura Integra
Trinity T-Spec
Tamiya Mini-Cooper (M-03)
Losi XXX-T
Team Associated TC4
Team Associated RC12L3
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

4 Pages « < 2 3 4
Reply to this topicTopic OptionsStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
 

Lo-Fi Version Time is now: September 5th 2010 - 11:56 PM