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Un-Warping a chassis?

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  • Member since
    May 2005
  • From: Sudbury, Ontario
Un-Warping a chassis?
Posted by moriad02 on Wednesday, August 15, 2007 1:20 PM
Does any one out there have a good way of un-warping a chassis? I was thinking of putting a heavy book onto off it for a long time. Would this work? Or would I be doing more damage to the kit?
Adam http://s20.photobucket.com/albums/b232/adammorin/ Why are wrong numbers never busy?
  • Member since
    May 2008
Posted by Anonymous on Wednesday, August 15, 2007 3:26 PM
I don't believe the heavy book will help. You need something to GENTLY change the distortion in the chassis. The best thing to do is to put it in very hot (not boiling) water and gently work it back into shape. Use big rubber gloves.

For resin pieces, you can tack it down to a board with fun tack or cement and leave it in the sun to gently reform it.

Good luck.
  • Member since
    November 2004
  • From: New York, Paris, Hamilton?
Posted by Chillyb1 on Wednesday, August 15, 2007 5:50 PM
I can attest to the effectiveness of the hot water method. Here's my slightly warped hood for a BMW 635 after such treatment:


Let that be a warning lest you try this without the greatest of care!!
  • Member since
    May 2005
  • From: Sudbury, Ontario
Posted by moriad02 on Friday, August 17, 2007 5:04 PM
Well after seing that picture of a BMW I am kinda shy towards that idea now. Anyone got any other ideas?
Adam http://s20.photobucket.com/albums/b232/adammorin/ Why are wrong numbers never busy?
  • Member since
    January 2004
  • From: Westland Michigan
Posted by KRIS MORGAN on Friday, August 17, 2007 8:03 PM
I fixed a warped chassis by clamping it to a flay piece of steel and, heating it slighly with a hair dryer a few times. Be careful to not over heat it. You are better off heating it a little a few times and, leave it clamper down until it cools.

Hockey players wear numbers because, they cannot always be identified by dental records. Lets go Red Wings!!

  • Member since
    December 2004
  • From: Tampa, FL.
Posted by Jantrix on Friday, August 17, 2007 10:05 PM
I wish you the best of luck. In my experience once a piece is warped that's all, game over. I had twice tried straightening a model body and once a chassis. I was successful all three times, for a while. After a short period of time all three resumed their previous skewed proportions. It really sucks too. Do know how you naturally look at your new builds as you pass them on the mantle, to just revell in how great they look? Imagine my horror when three weeks after completion, my lil Datsun is no longer sitting on four wheels. I highly recommend that you try to replace the piece. We put too much effort into what we do, to risk it. Just my $.02.

Rob Geeked There is a nasty little four letter word for building something you're not interested in - work. And that's not what we do here. My Photo Album

  • Member since
    May 2005
  • From: Sudbury, Ontario
Posted by moriad02 on Thursday, August 23, 2007 7:09 PM
QUOTE: Originally posted by Jantrix

I wish you the best of luck. In my experience once a piece is warped that's all, game over. I had twice tried straightening a model body and once a chassis. I was successful all three times, for a while. After a short period of time all three resumed their previous skewed proportions. It really sucks too. Do know how you naturally look at your new builds as you pass them on the mantle, to just revell in how great they look? Imagine my horror when three weeks after completion, my lil Datsun is no longer sitting on four wheels. I highly recommend that you try to replace the piece. We put too much effort into what we do, to risk it. Just my $.02.


Thanks I will keep that in mind. I dowt I will find a replacement part. It's for a amt/ertl Lamborghini Diablo. The kit is as old as I am. I think I will strap it to a flat surface and try blow drying it.
Adam http://s20.photobucket.com/albums/b232/adammorin/ Why are wrong numbers never busy?
  • Member since
    May 2008
Posted by Anonymous on Thursday, August 23, 2007 10:56 PM
Yikes chillyb1: I have a 71 chevy kit with a warped hood, I was gonna try the warm water method but now I'm not so sure...
  • Member since
    May 2008
Posted by Anonymous on Friday, August 24, 2007 12:07 AM
Bend it cold, thats the safest method, heat will destroy it.
Just bend it slowly with mild pressure.
  • Member since
    February 2007
  • From: Sidney BC
Posted by Raydee53 on Wednesday, December 12, 2007 11:05 PM
I un-warped my Amt/Ertl '49 Merc chassis with hot tap water and twisting gently. I know this is an old post but I did a search on "warped chassis" and this the first thread that popped up.This post gave me the idea to use hot tap water. It worked great.
"Never tell me the odds"-Han Solo "He was a loser, you know. Every high school has to have at least two: it's like a national law. One male, one female. Everyone's dumping ground." - Christine, narration, Prologue
  • Member since
    December 2005
Posted by bobss396 on Thursday, December 13, 2007 6:05 AM
I use hot tap water and use the over-twist method. You have to twist it past the poing where you want it and let it spring back. A dunk into cold water will set it where you want it, most of the time. It may take a couple of shots.

I've also taken it out of the hot water and rubber banded it to a piece of wood, a piece of 1 x 4 pine will do it. Let it sit over night and your chassis will be straight.

Bob

Is the person that gave you your first model kit responsible for making you a model-holic?

  • Member since
    January 2005
  • From: Cape Coral Florida
Posted by BigTallDad on Thursday, December 13, 2007 9:13 AM
Attach the chassis to a flat board perhaps adding a shim to the area needing adjustment (to allow for spring back). Place the assembly in a food dehydrator for a day or so.

I had a similar problem when painting a convertible body; I left the body on the coat-hanger stand and put it in the dehydrator; the tension from the coat-hanger caused the body to spread out. With nothing to lose, I put some cleats on a 1" x 4", wedged the body between them, and back to the dehydrator...the body came back to the original shape.

"In order to teach a dog, you must first be smarter than the dog" P.R. Ferguson

  • Member since
    December 2006
Posted by carguy06 on Thursday, December 13, 2007 11:30 PM
hey all.

the hot water trick does work. i've used it twice on two different pick up chassis's. one was revell's 99 silverado and the other was amt/ertl's little red express. both were warped. and all i did was on a cool day took the bodies outside. and took some water, run it through the coffee pot, and then dumped it over the chassises. do it slowly, and hold down the four corners somehow. i held it with my fingers while my wife poured the water over the arear that was warped. held it for a few minutes to allow it to cool, and they've been straight ever since. I think the secret to the hot water trick is not to get the water too hot otherwise it will melt the plastic. anyway my two cents worth. good luck building

got my new model, new supplies, and lots of free time for the first time in forever to work on a model. only missing one thing. my glue.......... oh wait there it is. spilled all over my floor. well so much for buildin models today. lol

  • Member since
    October 2019
Posted by modelmonster on Wednesday, October 23, 2019 7:55 PM
I have tried submersing it in warm water and then gently bending it back into place once it has soaked in the warm / heat it's more pliable and once you take it out ( if possible ) keep it in a straight position and dunk it in cold water . 9 out of 10 times the new correction or straightening of the body or part is permanent . Skinnier parts like widow pillers need less heat . Experiment first on a glue or paint bomb body before you attempt a new body correction . Direct sunlight will shrivel a entire body so fast that you'd need a genie to fix it , lol .
  • Member since
    December 2010
  • From: Hillsboro, TX
Posted by ibj40 on Thursday, October 24, 2019 1:25 PM

Has anyone considered re-shaping with warm water, and then plunging into cold (or even ice) water to capture the shape immediately?

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