RCU Forums - View Single Post - 1/18 chassis build need motor/gearing and tires for
Old 01-27-2023 | 10:32 PM
  #49  
testfly
 
Joined: Apr 2002
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From: FLORIDA
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Here is a look at the first body pulled from the wood plug after I updated the front end.


I have just updated the wood plug to include body post locations to make mounting the body to the chassis much faster.


Here you can see the body pin locations after the body is removed from the plug.



This is what I use on the plug so the formed body comes right off. I spray the plug the buck and the base then rub it in and
after a few minutes I wipe it all off. I may repeat after about 50 bodies pulled if needed. I will link a video below showing the wood plug and how I use
a one hole vacuum setup to pull a body from my custom plug. The trick is in the setup. I use my plug a buck and a base. When you have all 3 working
together you can get the same results. For this project I made the buck and the plug in one piece but you do not have to do it that way. (I did cause I like a challenge)
Just make each and do the prep work then glue them together. Keep in mind that I am using .060 PETG material for this project and it pulls nice with my setup.






Here is a good look at the top side of the fixture I use to hold the material as it is heating up. Note the single hole right behind the fixture.
About 30 seconds before the material is ready for the pull I open the cabinet and place the plug over that hole. (my vacuum source)
This allows the plug to preheat.

When the plastic is ready I open the cabinet TURN OFF the heat, TURN ON the vacuum and then flip my fixture over and press it down over
the plug so that the material seals at the base. In about two seconds it pulls the material to the plug in one smooth motion. I let the material cool a minute and then remove the material from the plug.
I cut the body from the waste material and it is ready to be fitted to a car chassis. Fun Stuff for sure.

The following short video will show it much better then I have explained it. Enjoy!

Last edited by testfly; 01-27-2023 at 10:37 PM.